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Grow Me Instead As a gardener, what can you do? Manitoba Garden Invaders Familiarize yourself with local invasive plants of concern. Help prevent their spread by making What Not To Plant: sure discarded plant materials are dead and/or contained when disposing of them. Remove seed Grow Me Ox-eye Daisy heads after flowering or dig as much of the root (Leucanthemum vulgare) as possible. Carefully place all plant material in a Scentless Chamomile Grow garbage bag, tie tightly, and leave for pickup by your (Matricaria perforata) local waste management. Where permitted, dry the Instead Common Baby’s Breath plant material for seven to ten days and then burn. (Gypsophila paniculata) Be responsible and do not share invasive plants with Common Tansy other gardeners. (Tanacetum vulgare) When acquiring new additions for your garden be Why should gardeners be Purple Loosestrife Me aware when: concerned about invasive (Lythrum salicaria, L.virgatum) • Buying plants or seed over the internet. Plants species? Dame’s Rocket that are considered native in one area can be (Hesperis matronalis) invasive in another. There are a number of invasive plant species which not only Creeping Bellflower threaten our natural areas, but (Campanula rapunculoides) Instead • Buying plants advertised as “Exotic”. Ornamental plants imported and sold under this category also invade your garden. These invasive plants spread far and Tamarisk or Salt Cedar have become some of our worst invaders. fast by both seed and extensive (Tamarix spp) root systems. • Shopping at local nurseries, greenhouses, or Yellow and Dalmation Toadflax (Linaria vulgaris, L. dalmatica) garden centers. Do not purchase the plant if the Landscape plants that seed scientific name or origin of a plant cannot be freely like Dame’s Rocket or Himalayan Balsam supplied. Ox-eye Daisy,for example, (Impatiens glandulifera) often cause extra work for Leafy Spurge • Sowing wildflower mixtures. Many wildflower gardeners. Seedlings must be (Euphorbia esula) mixes contain seeds of invasive plants. If a weeded out before they take list of species (including scientific name) is not over and displace plants that Photo of: Yellow Toadflax Wildflower Mixes included on the package label then do not buy or Bob Nowierski, Montana State University, Bugwood.org were carefully planted in your plant the wildflower mix. garden. Plants with creeping Yellow Flag Iris root systems such as Creeping (Iris pseudacorus) Landscapers and gardeners can now select Bellflower can spread quickly Flowering Rush from a wide variety of alternative perennial and annual Invasive Species from your garden onto other plants- for both terrestrial and water gardens which Council of Manitoba people’s property, decreasing (Butomus umbellatus) pose no threat to the environment. Native plants such c/o 5006 Roblin Blvd their enjoyment of their property, Water Hyacinth as Meadow Blazingstar (Liatris ligulistylis), and Blue Winnipeg, MB and their enjoyment of having (Eichhornia crassipes) R3R 0G7 flag (Iris versicolor) provide excellent alternatives. you as a neighbor. European Frog-Bit THE INVASIVE SPECIES A great source of information for growing native (Hydrocharis morsus-ranae) species can be found in the book “Naturescape COUNCIL OF MANITOBA Manitoba” available at local bookstores. For further information on invasive species or to sign up for our free quarterly newsletter, contact the ISCM at (204) 232-6021 or http://www.invasivespeciesmanitoba.com [email protected] Shell Environmental Fund Avoid:Purple Loosestrife Avoid: ScentlessScentless Chamomile ChamomileAvoid: HimalayanHimalayan Balsam BalsamAAvoid:void:DameDame’’ss RockeRockett Avoid: Salt Cedar oror TaTamariskmarisk AAvoid:void:LeafyLeafy SpurgSpurgee Avoid:YeYellowllow Flag IriIriss AAvoid:void:WWaterater Hyacinth (L(Lythrumythrum salicaria salicaria) (Matricaria(Matricaria perforata perforata)) (Impatiens(Impatiens glandulifera glandulifera) ) (Hesperis(Hesperis matronalismatronalis) (Tamarix(Tamarix spp. spp.) ) (Euphorbia esula) esula) (Iris(Iris pseudacorus pseudacorus ) ) (Eichhornia(Eichhornia crassipes) crassipes ) Deciduous shrub/small tree. Noxious weed in pasture, Eye-catching perennial found ReferredL. virgatum) to as “the Looks similar to Ox-eye with Fast-growing (2-3m) tall OftenOften confusedconfused withwith gardengarden Noxious weed in pasture, Free-floating Free-floating aquatic aquatic perennial perennial.. Referred to as “the Looks similar to Ox-eye with GrowsGrows bestbest along creeks, rivers,rivers, rangelands, ditches, wasteland, in in wet wet areas areas at at low- low- to to mid- mid- beautifulkiller, Lythrum ‘ small, white daisy flowers, annual with attractive, phloxphlox DameDame’s’s RocketRocket hashas rangelands,ditches, wasteland, Grows Grows in in ponds, ponds, wetlands, wetlands, beautiful killer, Lythrum small, white daisy flowers, andand ponds.ponds. Scale-likeScale-like leavesleaves and abandoned areas. elevations. elevations. Ye Yellowllow flowers flowers Morden Pink’and but has distinct fern-like orchid-like pink toto purplepurple 44 petalspetals andand alternatealternate leaves,leaves, and abandoned areas. marshes marshes large large lakes lakes,, ‘Morden Pink’ and but has distinct fern-like leaves. concentrateconcentrate saltsalt fromfrom groundground Sometimes planted in home with characteristic Iris shape. ‘Morden Gleam’. Tall, leaves. Reproduces by seed. flowers.flowers. HollowHollow stemsstems areare phloxphlox hashas 55 petalspetals andand Sometimes planted in home reservoirs, reservoirs, and and rivers. rivers. Broad, Broad, ‘Morden Gleam’. Tall, Reproduces by seed. Invades water water in in the the soil. soil. Salt Salt released released back back gardens. Secretes a milky Grows Grows in in ditches, ditches, irrigation irrigation thick glossy leaves with an upright strongpurple spires. Invades natural areas similar easily broken. Widespread opposite opposite leaves. leaves. Flower Flower color color gardens. Secretes a milky thick glossy leaves with an upright strong purple spires. natural areas similar to into into the the soil soil with with leaf leaf litte litter.r. Increased Increased latex sap when damaged. canals,canals, marshes, marshes, stream stream and and lake lake stalkstalk that that supports supports a a spike spike of of showy showy Takes over ponds, beaches, to Ox-eye Daisy. invaderinvader of agricultural areas, naturalnatural forests,forests, cancan bebe magentamagenta throughthrough toto pinkpink latex sap when damaged. salinitysalinity inin thethe soilsoil makesmakes itit unsuitableunsuitable shorelines,shorelines, and and shallow shallow ponds. ponds. flowers lavender to pink in colour. Takes over ponds, beaches, Ox-eye Daisy. disturbed areas, rangelands, riverbanks,riverbanks, oror white.white. ConsideredConsidered aa “traditio“traditional”nal” Flowers Flowers are are in in numerous numerous flowerslavender to pink in colour. marshes, farm dugouts, irrigation forfor manymany nativenative plantsplants andand shrubs.shrubs. ReproducesReproduces quickly quickly through through seed seed AccordingAccording to to the the Global Global Invasive Invasive marshes, farm dugouts, irrigation wetlands and gardens. It should not be used gardengarden floweflowerr.. ProlificProlific seedseed small clusters around green to yellow canals. A mature plant can produce DeepDeep rooted.rooted. ConsumesConsumes asas muchmuch asas dispersaldispersal andand horizontalhorizontal root systems, SpeciesSpecies Database, Database, it it is is on on the the list list of of canals. A mature plant can produce toused beautify to beautify natural natural areas. areas. Brittle Brittleseed seed producerproducer oftenoften foundfound inin ‘wildflo‘wildflowewerr’’ heart-shaped bracts. Lower leaves 2.5 million seeds. Ornamental 750 litres of water/day. Grows 3-4 creatingcreating thickets thickets in in the the water water like like 100100 of of the the Wo Worldrld’s’s Wo Worstrst Invasive Invasive Alien Alien 2.5 million seeds. Ornamental capsules explode upon contact, sending mixes. Especially problematic near 750 litres of water/day. Grows 3-4 are smooth, green and narroww.. cultivars, originally considered sterile, capsules explode upon contact, sending mixes. Especially problematic near Species.Species. Can Can displace displace native native cultivars, originally considered sterile, woodlands. metresmetres inin aa singlesingle season.season. MatureMature Spreads easily through seed and root cattails.cattails. Dense Dense stands stands exclude exclude native native have proven very fertile when cross seeds (2500 per plant) 66 metersmeters oror more.more. woodlands. Spreads easily through seed and root vegetation,vegetation, reduce reduce biological biological diversit diversity,y , have proven very fertile when cross plantplant cancan produceproduce 600,000600,000 seedsseeds fragments. Dominates habitats it wetlandwetland species,species, threatening plant and pollinated. Copious pollen sources for Shallow root system makes it easily fragments. Dominates habitats it andand clog clog irrigation irrigation canals. canals. Widely Widely sold sold pollinated. Copious pollen sources for annuallannuallyy.. SeedsSeeds easilyeasily disperseddispersed by infests and causes economic impacts andanimal animal diversity. diversit Soldy. Soldin garden in garden centres wild plants. controlled by hand-pulling. infests and causes economic impacts asas a a pond pond plant plant due due to to its its exotic exotic wild plants. windwind andand watewaterr.. SeveredSevered
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