DOCSLIB.ORG

How to Grow Alliums, Allium, Ornamental Onions, Flowering Onions

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

How to Grow Alliums, Allium, Ornamental Onions, Flowering... http://www.gardeners.com/Growing-Alliums/7371,default,pg.html Alliums for the Flower Garden Onions, shallots and gardlic are members of the allium family that belong in the vegetable garden. But there are many ornamental alliums that deserve a hearty welcome in your perennial gardens. Alliums are plants of exquisite beauty in both flower and leaf, with tough constitutions. These easy-to-grow bulbs come in a broad palette of colors, heights, bloom times and flower forms. They make excellent cut flowers for fresh or dried bouquets. Even crowded gardens can accommodate a few alliums because they don't take up much space. What's more, alliums are relatively resistant to deer, voles, chipmunks, and rabbits Ordinary Onions They're Not There are more than 700 different types of alliums in the world. It wasn't until the late 1800s that this vast group of plants started to intrigue plant lovers. Russian botanists began collecting some of the spectacular alliums from Central Asia and introducing them to avid horticulturists through the Imperial Botanical Garden in St. Petersburg. Of course, it didn't take long for the In this border, the Purple Sensation allium consummate plant hunters, the British, to bridges the gap between spring and early get wind of this "new" family of garden- summer-flowering perennials. worthy plants. Their expeditions yielded many more interesting alliums varieties. Hardy, Easy-Care, Deer- and Rodent- Resistant Ornamental alliums are hardy to zone 4 and they have very undemanding cultural requirements. They will grow in most any soil, as long as it is well-drained. Alliums adore sunlight and will perform best when they can bask in it all day long. Since most of them multiply naturally, they can be left untouched in the same area for years. Alliums are drought-tolerant plants that actually prefer to be grown on the dry side. There are no serious diseases or insect pests that bother them. And you won't ever have to worry about rodents or deer, since they seem to have no appreciation for the taste of onions — ornamental or otherwise. Just remember, there's only one time of year you can plant alliums: in the fall. Daffodils, tulips and The Ozawa allium is among the last crocuses are easy to find at most garden perennials to flower. Shown here with asters, centers, but alliums are not as readily available. its pink flowers are still forming atop a To make sure you have the bulbs in hand when grassy clump of foliage. it's time to plant, the best thing to do is order them by mail. That way, they’ll show up at your door at proper planting time, and there's no chance you'll have to live another year without these beautiful, long-lasting, bee-friendly flowers in your garden. Some ornamental alliums grow 1 of 3 10/24/10 3:44 PM How to Grow Alliums, Allium, Ornamental Onions, Flowering... http://www.gardeners.com/Growing-Alliums/7371,default,pg.html more like chives and what you plant is a clump of roots rather than bulbs. This type of allium is usually sold as a potted plant, and may be more available in spring than fall. Favorite Alliums There are dozens of varieties in cultivation; here are some profiles of some of the best. Purple Sensation: the 2″ to 4″ diameter purple globes bloom in early June, right after the late tulips. Purple Sensation's sturdy stems rise 24″ to 30″ high, so the flowers appear to float above the foliage of newly emerging perennials. Globemaster and Gladiator: The tallest and most architectural alliums have huge, globe- shaped flowerheads on 3- to 4-foot stems. Bloom time is early to mid-June. A group of deep-purple Globemaster or Gladiator alliums is a real This yellow allium (Allium flavum) is a good eye-catcher, especially when planted with white choice for rock gardens or pink peonies, delphiniums or tall bearded iris. The white-flowering Mount Everest is a bit shorter and looks sharp in front of shrubs with deep-green or burgundy foliage or rising out of a groundcover of periwinkle (Vinca minor). Corkscrew allium: Drought-tolerant corkscrew allium (Allium senescens ssp. montanum var. glaucum) makes a good edging plant in the dry soil at the top of my stone retaining wall. Its blue-green leaves twist like loose corkscrews. Bloom time is late summer. Ozawa allium (Allium thunbergii 'Ozawa'): A tidy, clump-forming plant that grows 18″ to 20″ high. Among the last of the perennials to bloom, its flowers often don't open until late September or October. Bees love it. Another late-bloomer that flowers in autumn. Its pink flowers pair well with coreopsis, gaillardia, solidago and other fall flowers. Schubert allium (Allium schubertii): Quite dramatic, though only 8″ tall . Its foot-wide The drumstick allium is a bit floppy, so plant umbels look like an exploding pink fireworks it among other perennials that can provide display. Sure to elicit comments from garden visitors. Seed heads add interest for a month or support. more after blooms fade. Drumstick allium (Allium sphaerocephalon): Blooms in early July, a couple weeks after Purple Sensation. Not as erect and orderly as Purple Sensation, but in the right place (where casual is OK), the two-toned, burgundy-green heads are fantastic. Great with ornamental grasses. Yellow allium (Allium flavum): A midsummer- blooming favorite that is well-suited to rock gardens. Over a 10-day period, the cluster of florets slowly emerges and becomes an exuberant display of color. Related species available in yellow, pink and white, 12″ to 24″ high. ShareThis An allium that anyone can grow: the 2 of 3 10/24/10 3:44 PM How to Grow Alliums, Allium, Ornamental Onions, Flowering... http://www.gardeners.com/Growing-Alliums/7371,default,pg.html Everlasting Allium, which can get "planted" any time during the year. They come in pink and yellow, too. 3 of 3 10/24/10 3:44 PM Plants That Climb, Climbing Plants, Trellises, Vines: Gardener'... http://www.gardeners.com/Plants-That-Climb/5373,default,pg.html Peas use tendrils to climb a trellis. Plants That Climb All About Vines and Other Climbing Plants By Kathy LaLiberte Growing up rather than out is a good way to save space in the garden. You also get to enjoy lots of great vine plants such as sugar snap peas, pole beans, moonflowers, bougainvillea, and clematis. Adding a trellis or some other vertical structure to your garden also gives you a whole new dimension of visual interest. But figuring out how to match climbing plants with the right kind of support leaves many gardeners baffled. Why won't pole beans and tomatoes climb up a lattice frame? Why won't sweet peas and clematis climb a pole? The answer is that climbing plants climb in particular ways: some wrap, some adhere, and some curl. Here's how to recognize which plants Passionflowers use wiry tendrils that actually do what: reach around in the air until they come into contact with something they can grab. Tendrils: Peas are a good Examples example of a Stem tendrils: plant that uses Passionflower tendrils to (Passiflora) climb. Tendrils Grape (Vitis) are skinny, wiry structures Ampelopsis glandulosa along the Leaf tendrils: plant's stem Sweet peas (Lathyrus) that actually Cobaea scandens reach around in the air until Chilean glory flower they come into (Eccremocarpus scaber) contact with something they can grab. Once contact is made, the tendril curls, forming a coil that allows the plant to adjust 1 of 3 10/24/10 2:36 PM Plants That Climb, Climbing Plants, Trellises, Vines: Gardener'... http://www.gardeners.com/Plants-That-Climb/5373,default,pg.html the degree of tension or pull on the support. There are two kinds of tendrils. Stem tendrils (which passionflowers and grapes have) are shoots that grow out of the stem. Leaf tendrils (which peas have) look very similar, but the tendrils are actually modified leaves that emerge from a leaf node. Like a rock climber scaling the face of a mountain, plants that have tendrils need handholds in the form of horizontal supports. Netting works well for plants with tendrils, as long as the mesh is more than 2" square. I once tried growing sweet peas on some bird netting that we had lying around and the peas refused to take hold. Branches are a popular material for supporting tendril-climbers. Just make sure that branches are brushy—with lots of small side shoots—and not smooth, vertical sticks. Horizontal strings attached to posts or bamboo poles are ideal. Just don't position the strings more than about 4 inches apart or the newest set of tendrils may not be able to reach the next level of string. Also, because most tendrils are only about an inch long, they need to wrap around something thin (like string or wire) that's no more than about 1/4 inch in diameter. Twiners: Morning glories, pole beans, honeysuckle and clematis are some of the many plants that twine. There are Examples two important differences among twining plants: they either Twining leaves: have twining leaves or twining stems. Clematis Climbing nasturtium Plants with twining leaves, such as clematis, use their leaves (Tropaeolum polyphyllum) like tendrils. The young leaves of these plants are able to twist around slender wires, string, twigs or other leaves. The Rhodochiton key is to provide a thin enough support for the leaf stem to Twining stems curl around. A lattice made of 1-inch wide slats won't work for Pole beans leaf twiners.
Recommended publications
  • Biological Value and Morphological Traits of Pollen of Selected Garlic Species Allium L

    Biological Value and Morphological Traits of Pollen of Selected Garlic Species Allium L

    ACTA AGROBOTANICA Vol. 60 (1): 67 71 2007 BIOLOGICAL VALUE AND MORPHOLOGICAL TRAITS OF POLLEN OF SELECTED GARLIC SPECIES ALLIUM L. Beata Żuraw Department of Botany, Agricultural University, 20 950 Lublin, Akademicka str. 15 e mail: [email protected] Received: 20.04.2007 Summary (A. cernuum), violet (A. aflatunense) to purple (A. atro- This study was conducted in the years 1997 1999. From purpureum). Some species form blue (A. caeruleum) or the collection of the UMCS Botanical Garden, nine species of yellow flowers (A. moly, A. flavum). Most species are garlic were selected (A. aflatunense, A. atropurpureum, A. caeru- grown for cut flowers or as ornamentals on flower beds leum, A. cernuum, A. ledebourianum, A. lineare, A. sphaeroce- due to winter hardiness and low nutritional requirements phalon, A. victorialis, A. ursinum) and one subspecies (A. scoro- (K r z y m i ń s k a , 2003). Flower easily set seeds. Seeds doprasum subsp. jajlae). Pollen grain viability was evaluated on should be sown to the seed-bed in the autumn or directly microscopic slides stained with acetocarmine, germination abi to the soil in the spring (K amenetsky and Gutter- lity on the agar medium and measurements of grains were made m a n , 2000). The easiest way of propagation is the di- on glycerin jelly slides. The studied species were characterized vision of adventitious bulbs that should be set from the by high pollen viability (87 99%) what indicates the great value middle of September up to middle of November. of garlic flowers as a source of protein rich feed for honey bee Flowers of species from the genus L.
  • In Pursuit of Garlic

    In Pursuit of Garlic

    “Of all the authors of articles and books liz primeau liz written over the years about garlic, Liz Primeau’s In Pursuit of Garlic is supreme.” chester aaron, author of The Great Garlic Book su “Finally we get another fine piece of written work from pur it o n f Liz Primeau! The power of garlic takes on new meaning with this i book. You will not look at a clove of garlic the same ever again.” Mark cullen, gardening expert and writer-broadcaster www.markcullen.com “Incredibly well researched, with a wealth of information ALIC on this magical plant and great recipes too, this book will certainly find a valued place in my culinary library.” ALIC inpursuit of John Bishop, chef-restaurateur and author of AN INTIMATE LOOK AT THE Simply Bishop’s: Easy Seasonal Recipes DIVINELY ODOROUS BULB liz priMeau is the author of My Natural History and the bestselling Front Yard Gardens. She is also the founding editor of Canadian Gar- Liz Primeau dening magazine and gives talks about gardening across North America. She lives in Mississauga, Ontario. $19.95 www.greystonebooks.com Cover design by Heather Pringle Cover photograph by Julie Mcinnes/Getty Images Printed in Canada on fsc-certified paper Distributed in the U.S. by Publishers Group West Ebook also available Garlic.Cvr.Final.indd 1 12-01-11 3:42 PM In Pursuit of Garlic Garlic.Int.05.indd 1 12-01-11 3:43 PM Garlic.Int.05.indd 2 12-01-11 3:43 PM rsuit pu o in f ALIC AN INTIMATE LOOK AT THE DIVINELY ODOROUS BULB Liz Primeau d&m publishers inc.
  • RHS the Garden Index 2011: Volume 136, Parts 1-12

    RHS the Garden Index 2011: Volume 136, Parts 1-12

    January 2011 I £4.25 I www.rhs.org.uk February 2011 I £4.25 I www.rhs.org.uk March 2011 I £4.25 I www.rhs.org.uk April 2011 I £4.25 I www.rhs.org.uk This month: June 2011 I £4.25 I www.rhs.org.uk July 2011 I £4.25 I www.rhs.org.uk WINTER GARDEN DELIGHT VINTAGE DAFFODILS IDEAS FOR STAKING PERENNIALS GUIDE TO USING PEAT-FREE COMPOST The December 2011 | www.rhs.org.uk | £4.25 August 2011 I £4.25 I www.rhs.org.uk Garden VIBURNUMS FOR WINTER ANNUALS WITHA POTTED PASSION FOR APPE AL HOUSE PLANTS How to grow moth orchidsCHELSEA CHAMPIONS PRODUCTIVE CONTAINERS ASTRANTIAS FOR SUMMER STYLE FLOWERING CHERRIES OLD ANDPOPPIES NEW ON THE MARCHquinces: SWEET DIVERSITY IN HONEYSUCKLEScelebrating a forgotten fruit VARIEGATED EVERGREENS Index 2011: Volume 136, Parts 1–12 INDULGE IN GINGERS CURIOUS CUCUMBER RELATIVES Aug11 Cover_August 2011_The Garden_ 1 14/07/2011 11:28 Fruiting shrubs to attract birds Index 2011 January 2011 I £4.25 I www.rhs.org.uk February 2011 I £4.25 I www.rhs.org.uk March 2011 I £4.25 I www.rhs.org.uk April 2011 I £4.25 I www.rhs.org.uk May 2011 I £4.25 I www.rhs.org.uk June 2011 I £4.25 I www.rhs.org.uk This month: WINTER GARDEN DELIGHT VIBURNUMS FOR WINTER VINTAGE DAFFODILS PRODUCTIVE CONTAINERS BORDER BRILLIANCE POPPIES ON THE MARCH GUIDE TO USING PEAT-FREE COMPOST ANNUALS WITH POTTED APPEAL IDEAS FOR STAKING PERENNIALS FLOWERING CHERRIES OLD AND NEW DISPELLING WISTERIA MYTHS SWEET DIVERSITY IN HONEYSUCKLES January 2011 February 2011 March 2011 April 2011 May 2011 June 2011 1 pp1–68 2 pp69–142 3 pp143–214 4 pp215–286 5 pp287–364 6 pp365–432 Numbers in bold before Frutti Series) 6: 407, caterpillar 8: 529 vineale 5: 349 the page number(s) 407 readers’ response allotments: AWARD OF GARDEN MERIT denote the part number Achimenes: 10: 17 keeping them (month).
  • Plant Me Instead!

    Plant Me Instead!

    PLANT ME INSTEAD! CENTRAL DISTRICTS Acknowledgements Thank you to the following people and organisations who helped with the production of this booklet: Albert James (Manawatu District Council), Sally Pierce (Environment Network Manawatu), Kelly Stratford, Margaret Metcalfe and Graeme Lacock (DOC), Garry McGraw (Tararua District Council), Geoff Wilkinson (Palmerston North City Council), Ross I’anson and Christine Godetz (Rangitikei District Council), Peter Shore (Horowhenua District Council), Elaine Iddon and Craig Davey (Horizons Regional Council), Chris Hayvice (Ruapehu District Council), Anwyl Minnaar, Forest & Bird, Team Te One, and Castlecliff Coastcare for input, information and advice; John Barkla, Jeremy Rolfe, Trevor James, John Clayton, Peter de Lange, John Smith-Dodsworth, John Liddle (Liddle Wonder Nurseries), Geoff Bryant, Clayson Howell, John Sawyer and others who provided photos; and Sonia Frimmel (What’s the Story) for design and layout. While all non-native alternatives have been screened against several databases to ensure they are not considered weedy, predicting future behaviour is not an exact science! The only way to be 100% sure is to use ecosourced native species. Published by: Weedbusters © 2010 ISBN: 978-0-9582844-7-9 Get rid of a weed, plant me instead! Many of the weedy species that are invading and damaging our natural areas are ornamental plants that have ‘jumped the fence’ from gardens and gone wild. It costs councils, government departments and private landowners millions of dollars, and volunteers and community groups thousands of unpaid hours, to control these weeds every year. This Plant Me Instead booklet profiles the environmental weeds of greatest concern to those in your region who work and volunteer in local parks and reserves, national parks, bush remnants, wetlands and coastal areas.
  • Van Zyverden's

    Van Zyverden's

    Van Zyverden’s ALLIUM SPHAEROCEPHALON Allium are in the same family as garlic, onions, chives and shallots. This makes gardeners wonder if they should include them in their ornamental gardening plans, as it conjures up images of supermarket produce. But because good garden designs are often made up of different shapes, allium’s rounded blooms make for high drama and interest in the garden. The Allium group gets more popular annually, from over 300 species to choose. They amaze everyone, and few plants create this kind of wow in the garden. We will be adding many new varieties shortly. Each flower head displays an Commonly called rounded Deer and rodent resistant interesting bi-color effect as the florets headed leak or drumstick allium change from green to purple About This Variety: Allium sphaerocephalon is a bulbous perennial that is ornamentally grown for its early summer bloom of rose-purple to pink flower heads. This plant is native throughout Europe to the Caucusus, Iran and northern Africa. Cylindrical, hollow, grassy, gray-green leaves to 14” long form a foliage clump in spring. In late spring, sturdy slender flowering stems rise topped with egg-shaped flower heads. Each flower head is a tight, dense, clover-like cluster of tiny florets that emerge deep green but mature to rose-purple. Flower heads resemble the flower heads of some clovers. Flowers lack fragrance. Growing Instructions: As Alliums do not like wet feet, find a sunny location where the soil drains well or try to improve the drainage. The bulbs will rot in wet areas.
  • High Line Plant List Stay Connected @Highlinenyc

    High Line Plant List Stay Connected @Highlinenyc

    BROUGHT TO YOU BY HIGH LINE PLANT LIST STAY CONNECTED @HIGHLINENYC Trees & Shrubs Acer triflorum three-flowered maple Indigofera amblyantha pink-flowered indigo Aesculus parviflora bottlebrush buckeye Indigofera heterantha Himalayan indigo Amelanchier arborea common serviceberry Juniperus virginiana ‘Corcorcor’ Emerald Sentinel® eastern red cedar Amelanchier laevis Allegheny serviceberry Emerald Sentinel ™ Amorpha canescens leadplant Lespedeza thunbergii ‘Gibraltar’ Gibraltar bushclover Amorpha fruticosa desert false indigo Magnolia macrophylla bigleaf magnolia Aronia melanocarpa ‘Viking’ Viking black chokeberry Magnolia tripetala umbrella tree Betula nigra river birch Magnolia virginiana var. australis Green Shadow sweetbay magnolia Betula populifolia grey birch ‘Green Shadow’ Betula populifolia ‘Whitespire’ Whitespire grey birch Mahonia x media ‘Winter Sun’ Winter Sun mahonia Callicarpa dichotoma beautyberry Malus domestica ‘Golden Russet’ Golden Russet apple Calycanthus floridus sweetshrub Malus floribunda crabapple Calycanthus floridus ‘Michael Lindsey’ Michael Lindsey sweetshrub Nyssa sylvatica black gum Carpinus betulus ‘Fastigiata’ upright European hornbeam Nyssa sylvatica ‘Wildfire’ Wildfire black gum Carpinus caroliniana American hornbeam Philadelphus ‘Natchez’ Natchez sweet mock orange Cercis canadensis eastern redbud Populus tremuloides quaking aspen Cercis canadensis ‘Ace of Hearts’ Ace of Hearts redbud Prunus virginiana chokecherry Cercis canadensis ‘Appalachian Red’ Appalachian Red redbud Ptelea trifoliata hoptree Cercis
  • Biodiversity Hotspots for Conservation Priorities

    Biodiversity Hotspots for Conservation Priorities

    articles Biodiversity hotspots for conservation priorities Norman Myers*, Russell A. Mittermeier², Cristina G. Mittermeier², Gustavo A. B. da Fonseca³ & Jennifer Kent§ * Green College, Oxford University, Upper Meadow, Old Road, Headington, Oxford OX3 8SZ, UK ² Conservation International, 2501 M Street NW, Washington, DC 20037, USA ³ Centre for Applied Biodiversity Science, Conservation International, 2501 M Street NW, Washington, DC 20037, USA § 35 Dorchester Close, Headington, Oxford OX3 8SS, UK ............................................................................................................................................................................................................................................................................ Conservationists are far from able to assist all species under threat, if only for lack of funding. This places a premium on priorities: how can we support the most species at the least cost? One way is to identify `biodiversity hotspots' where exceptional concentrations of endemic species are undergoing exceptional loss of habitat. As many as 44% of all species of vascular plants and 35% of all species in four vertebrate groups are con®ned to 25 hotspots comprising only 1.4% of the land surface of the Earth. This opens the way for a `silver bullet' strategy on the part of conservation planners, focusing on these hotspots in proportion to their share of the world's species at risk. The number of species threatened with extinction far outstrips populations and even ecological processes are not important mani- available conservation resources, and the situation looks set to festations of biodiversity, but they do not belong in this assessment. become rapidly worse1±4. This places a premium on identifying There are other types of hotspot10,11, featuring richness of, for priorities. How can we protect the most species per dollar invested? example, rare12,13 or taxonomically unusual species14,15.
  • Q. I'd Like to Know If There Are Any Vines I Can Plant Soon That Could Be Blooming by Early June? Several Answers Are Below

    Q. I'd Like to Know If There Are Any Vines I Can Plant Soon That Could Be Blooming by Early June? Several Answers Are Below

    Q. I'd like to know if there are any vines I can plant soon that could be blooming by early June? Several answers are below. A. I would prefer either a clamantis vine or a morning glory. A. Morning glories may be your answer. BUT once you have them, you will always have them. They reseed like crazy!! A. Eccremocarpus scaber Flame Grow 10 to 15 feet in a season. Perrenial and will flower in the first season planted from seed. Blooms June to September. Evergreen perrenial. Flower is yellow orange and red A. You can "plant" almost any ANNUAL vine which might appeal to you (some listed below). HOWEVER, and this is very important as I know from experience the hard way, i.e. losing a vine in May to the dreaded water overload, i.e. rain or a late season cold snap. Here's how you want to do this: Find the annual vine you'd like to grow. Once you get it home from the garden center, transplant it into a 1/2 to 1 gallon sized container and grow it in there until about the 3rd week of May or when the temps are averaging about 65 to 70 degrees daily. Place a small trellis in the container so the vine can start climbing. Try keeping it out of the wind, but in good light from the sun (a small greenhouse atmosphere would be ideal). It will continue to grow in the container and may even throw off some flowers. Transplant when the conditions are right into a sunny area with a trellis for it to climb up (about 4 to 5 feet in height).
  • Allium Leafminer’S Threat to the U.S

    Allium Leafminer’S Threat to the U.S

    What we know and don’t know about the Allium leafminer’s threat to the U.S. Allium industry Session V: Joint IARS ‐ NARC‐ NOA Session July 25, 2019 Brian Nault1, Shelby Fleischer2, Timothy Elkner3, Ethan Grundberg4, Teresa Rusinek5, Riley Harding1 and Brandon Lingbeek2 1Cornell Univ., Geneva, NY, 2Penn State Univ., Univ. Park, PA, 3Penn State Univ., Manheim, PA, 4Cornell Coop. Ext., Middletown, NY, 5Cornell Coop. Ext., Highland, NY Leafminer pests (Diptera: Agromyzidae) of Allium crops in U.S. American serpentine leafminer (Liriomyza trifolii) Vegetable leafminer (Liriomyza sativae) Allium leafminer (ALM) , Phytomyza gymnostoma (Loew) *New invasive pest of Allium spp. in North America; detected in 2015 Photo: Andre Megroz World distribution of Allium leafminer CABI Crop Protection Compendium (2018) Origin – Poland (1858) 21 countries in Europe; 2 in Asia; 1 in NA North American distribution of Allium leafminer First detected in Lancaster County, PA (2015) Confirmed in MA, MD, NJ, NY & PA (as of May 2019) Damage by Allium leafminer Oviposition marks cause cosmetic Oviposition injury to scallions and chives marks Oviposition marks are not an issue for bulb onion, leeks, etc. © The Author(s) 2018 Photo: E. Grundberg Damage by Allium leafminer Eggs hatch from some oviposition Oviposition marks marks and larvae mine down the leaf to the lower portions of the plant where they will pupate Mining © The Author(s) 2018 Photo: E. Grundberg Damage by Allium leafminer Larval feeding and associated Larva (8 mm) bacterial rot makes leeks and scallions unmarketable Pupa 3-4 mm Photo: S. Spichiger Photo: T. Rusinek Photo: E. Grundberg Photo: R. Donoval Photo: R.
  • The First North American Record of the Allium Leafminer

    The First North American Record of the Allium Leafminer

    Journal of Integrated Pest Management, (2018) 9(1): 8; 1–8 doi: 10.1093/jipm/pmx034 Profile The First North American Record of the Allium Leafminer Lawrence E. Barringer,1,4 Shelby J. Fleischer,2 Dana Roberts,2 Sven-Erik Spichiger,1 and Timothy Elkner3 1Division of Entomology, Bureau of Plant Industry, Pennsylvania Department of Agriculture, 2301 N. Cameron Street, Harrisburg, PA 17110, 2Department of Entomology, The Pennsylvania State University, Old Main, State College, PA 16801, 3Penn State Extension, Lancaster County, 1383 Arcadia Road, Lancaster, PA 17601, and 4Corresponding author, e-mail: [email protected] Subject Editor: Donald Weber Received 27 May 2017; Editorial decision 30 November 2017 Abstract The invasive species Phytomyza gymnostoma (Loew) (Diptera: Agromyzidae), also know as the Allium Leafminer, is reported from the United States for the first time. The first specimens were collected in Lancaster County, PA, USA in December 2015. An additional 19 counties in Pennsylvania and two states were confirmed in 2016. The species’ North American distribution, pest implications, and observations on their biology in the New World are reviewed. Key words: Phytomyza gymnostoma, Allium, North America, distribution, Allium Leafminer The initial report of ‘unidentified insect (Leafminer spp.) on Origin and Distribution Allium’ was submitted to the Pennsylvania Department of P. gymnostoma Loew, also as allium leafminer (ALM), is a European Agriculture (PDA) Entomology Division on 21 December 2015, by species of Diptera: Agromyzidae described from Poland in 1858. the author (T.E.E.). A grower in Lancaster County, PA contacted The species is widespread across Continental Europe reaching from the author after experiencing total loss of a leek (Allium porrum Spain to Ukraine, north to Denmark and the United Kingdom.
  • Grow Bloomin' Onions

    Grow Bloomin' Onions

    Grow Bloomin’ Onions By Ray Novitske, Fairfax Master Gardener Mention spring blooms, and most of us think of early crocus, daffodils and tulips. But there are other spring bulbs that are often overlooked because they bloom later in the season. Alliums, also called Flowering Onions, can take your spring flowering season from the end of the tulips into the early summer. Most bloom in late spring through June. University of Arkansas Research & Research Arkansas of University Alliums are members of the Amarylidaceae family, which includes amaryllis, leeks, scallions, leeks, Extension photo: photo: chives and of course, onions. There are about 600 Allium gigantium different species of alliums, and most of them are native to North America, with the remaining hundred or so occurring in China. A handful are also found in Europe, Africa and Asia. Alliums are fall-planted bulbs that produce a cluster of flowers on a sturdy stem, varying in height from a few inches to a few feet. They need full sun and average, well-drained soil, and have few problems. Deer and rodents leave them alone because of their onion taste. After blooming, the foliage eventually dies back like tulips and daffodils, leaving the dormant bulb underground until ready to produce a new bloom the following year. Alliums need a warm period after blooming to replenish the food in the bulb for the next year, in addition to a cold period during winter. They also do not survive well in poorly-drained soil — not needing frequent watering. Some consider them to be drought-tolerant. One of the best known alliums is the giant Allium giganteum, a University State Carolina North native of central Asia.
  • Online 2020 Plant Species List

    Online 2020 Plant Species List

    2020 PLANT SPECIES LIST ONLINE Online shopping is open between September 25 at 10 a.m. and September 27 at 5 p.m. (while supplies last) This is not an order form. TABLE OF CONTENTS Bulbs ........................................ 1 Bulb Bags .................................. 9 Grown at the Gardens ............... 10 by Jean K. Scorgie, 2019, watercolor. Denver Botanic Gardens Gardens Denver Botanic 2019, watercolor. by Jean K. Scorgie, Seed Mix ................................. 13 Plant Select® ............................ 14 Tulipa “Blue Diamond” Tulipa of Botanical ArtSchool & Illustration. MEMBERS RECEIVE A 10% DISCOUNT ON ALL PURCHASES. PRESENTING SPONSOR ASSOCIATE SPONSORS 1007 York Street botanicgardens.org BULBS PRICE RANGE: $2.50-$60 | Get a head start on your Spring garden through our wide variety of Specialty/ Rare or common bulbs! * Selections may vary depending on availability. ALLIUM Crocus isauricus ‘Spring Beauty’ Allium schubertii Crocus olivieri ssp. Balansae ‘Orange Monarch’ Crocus sieberi ‘Firefly’ Allium sphaerocephalon Crocus sieberi ssp. Sublimus ‘Tricolor’ Allium ‘Cameleon’ Crocus tommasinianus ‘Roseus’ Allium ‘Eros’ Crocus tommasinianus ‘Ruby Giant’ Allium ‘Globemaster’ Crocus ‘Romance’ Allium ‘Ivory Queen’ Crocus ‘Ladykiller’ Allium ‘Mount Everest’ Crocus chrysanthus ‘Cream Beauty’ Allium ‘Pink Jewel’ LARGE FLOWERING CROCUS Allium ‘Purple Sensation’ Crocus Giant Mixed Allium ‘Rosy Dream’ Crocus vernus ‘Flower Record’ Allium jesdianum ‘Akbulak’ Crocus flavus ‘Golden Yellow’ (‘Yellow Mammoth’) Allium karataviense