Hellebore Program

2020-21 HELLEBORE PROGRAM

Helleborus HGC® Ice N’ Roses® Early Red Helleborus Gold Collection®

Gold Collection® Hellebores are first-year flowering and notable for their upward-facing blooms and outstanding garden performance. Skagit Horticulture has been growing Hellebores for over ten years, and is the largest producer of Gold Collection® Hellebores in the United States. All Gold Collection® images courtesy of Heuger. ©Heuger.

HGC® ICE N’ ROSES® BAROLO HGC® ICE N’ ROSES® BRUNELLO

HGC® ICE N’ ROSES ® SERIES Bred for heat tolerance and exceptionally large, long-blooming flowers, HGC® Ice N’ Roses® is a real game changer in the world of Hellebores. They are extremely hardy and long lived, and grow very H13–24" • S24" • Z5(-20°) • Wtr H13–24" • S24" • Z5(-20°) • Wtr well in full sun in all but the TC • Cell Size 21, 72 TC • Cell Size 21, 72 hottest climate. Nonstop, deep maroon red, Multiple stems of large, deep rosy red upward-facing flowers blooms This series is sure to be H. x glandorfensis ‘COSEH 4600’: USPPP H. x glandorfensis: USPPP the star of your Hellebore program!

HGC® ICE N’ ROSES® HGC® ICE N’ ROSES® HGC® ICE N’ ROSES® DARK PICOTEE EARLY RED EARLY ROSE

H13–24” • S24” • Z5(-20°) • Wtr H13–24” • S24” • Z5(-20°) • Wtr H13–24” • S24” • Z5(-20°) • Wtr TC • Cell Size 21, 72 TC • Cell Size 21, 72 TC • Cell Size 21, 72 White to creamy yellow blooms with Striking purple red blooms on long Creamy shell pink blossoms emerge in dramatic burgundy red picotee stems appear in early winter early winter and last through spring H. x glandorfensis: USPPP H. x glandorfensis: USPPP H. x glandorfensis: USPPP

HELLEBORUS GOLD COLLECTION® 72-CELLS SHIP JAN – MAY | 21-CELLS SHIP AUG – JAN

skagithort.com | 800.459.3142 HGC® ICE N’ ROSES® HGC® ICE N’ ROSES® HGC® ICE N’ ROSES® HGC® ICE N’ ROSES® MERLOT NIGHTINGALE PICOTEE RED

H13–24" • S24" • Z5(-20°) H13–24" • S24" • Z5(-20°) H13–24" • S24" • Z5(-20°) H13–24” • S24” • Z5(-20°) Wtr • TC Cell Size 21, 72 Wtr • TC Cell Size 21, 72 Wtr • TC Cell Size 21, 72 Wtr • TC Cell Size 21, 72 Large, forward-facing wine Unique dusky, deep red Shell pink blooms with deep Profusion of ruby red, colored flowers bloom on blooms pink, picotee edge upward-facing flowers tall stems H. x glandorfensis: USPPP H. x glandorfensis: USPPP H. x glandorfensis ‘COSEH 5000’: H. x glandorfensis ‘COSEH 4100’: USPPP USPP #28296 HGC® ICE N’ ROSES® ROSADO HGC® ICE N’ ROSES® ROSE HGC® ICE N’ ROSES® WHITE

H13–24” • S24” • Z5(-20°) Wtr • TC H13–24” • S24” • Z5(-20°) Wtr • TC H13–24” • S24” • Z5(-20°) Wtr • TC Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Unique bicolored blooms in shades of An abundance of large, rose pink, White, upward-facing flowers white to deep rose pink upward-facing flowers H. x glandorfensis: USPPP H. x glandorfensis ‘COSEH 4200’: H. x glandorfensis ‘COSEH 4500’: USPP #28297 USPP #28293

HGC® DIVA HGC® JACOB HGC® JESKO

CHRISTMAS ROSE The Christmas Rose from the Helleborus Gold Collection® blooms in early winter with large white flowers that, depending on the varietal, can fade to pale green or light H8–10” • S13” • Z4(-30°) H9–12” • S13” • Z4(-30°) H10” • S12” • Z4(-30°) blush pink in cooler Fall • TC • Cell Size 21, 72 Wtr • TC • Cell Size 21, 72 Wtr • TC • Cell Size 21, 72 weather. Very early-blooming pure Large, single, white blooms Large white blooms with white flowers age to light green or blush overlapping petals emerge pink in cool weather in early winter H. niger ‘HGC Diva”: USPPP H. niger ‘HGC Jacob”: USPP H. niger ‘COSEH 1000’: USPP #17799 #25316

H=Height | S=Spread | TC=Tissue Culture | SD=Seed 3 HGC® CAMELOT® HGC® MAHOGANY SNOW SNOW ROSE The gorgeous Snow Rose from the Helleborus Gold Collection® Boast stunning, large, upward- facing flowers from the first year of planting, Their colors range from H12–15” • S20” • Z5(-20°) • Wtr H12–15” • S20” • Z5(-20°) pure white to deep TC • Cell Size 21, 72 Wtr–Early Spr • TC • Cell Size 21, 72 Pink buds open to large, pinkish cream Large, creamy white flowers age to burgundy. flowers that face outward mahogany pink H. x ballardiae ‘COSEH 940’: USPP #23772 H. x ballardiae ‘COSEH 930’: USPP #23898

HGC® MARLON HGC® MERLIN® HGC® MONTE CHRISTO

H10–18” • S22” • Z5(-20°) H12–15” • S24” • Z5(-20°) H11” • S24” • Z5(-20°) Late Wtr–Spr • TC Late Wtr–Spr • TC Wtr–Early Spr • TC • Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Creamy white blossoms blushed with Blush buds open to large cream Light to medium pink flowers age to a peachy pink flowers that age to green very dark burgundy H. x ericsmithii ‘COSEH 980’: USPP H. x ballardiae ‘COSEH 810’:USPP #22350 H. x ericsmithii ‘COSEH 860’: USPP# 23773 #25313

HGC® PINK FROST HGC® SHOOTING STAR® HELLEBORUS IVORY PRINCE

H12–15” • S24” • Z5(-20°) H18–22” • S24” • Z5 (-20°) H12–18" • S24" • Z4(-30°) Wtr–Early Spr • TC Wtr–Early Spr • TC Wtr–Spr • TC • Cell Size 21, 72 Cell Size 21, 72 Cell Size 72 A classic favorite: ivory flowers Pinky white buds open to pink, White flowers fade to sage flushed with pink and green maturing to deep burgundy green H. x ericsmithii ‘COSEH 710’: USPP H. x ericsmithii ‘COSEH 790’: USPP H. 'Walhelivor': USPP #16199 #21063 #22424

skagithort.com | 800.459.3142 Ships October through June Winter Jewels® Orientalis Type

AMBER GEM APRICOT BLUSH

WINTER JEWELS® SERIES

Large nodding blooms come in a range of unusual colors, reflecting complex and refined breeding.

Because they are propagated by seed, a range of colors and characteristics are produced within each variety. H18–22" • S24" • Z4(-30°) H18–22" • S24" • Z4(-30°) Late Wtr–Spr • SD • Cell Size 21, 72 Late Wtr–Spr • SD • Cell Size 21, 72 Commonly blooms the Double; light yellow flowers, with Single; apricot/peach blooms, touches of red or pink some with red markings second year, but they are worth the wait! H. x hybridus H. x hybridus

BERRY SWIRL BLACK DIAMOND BLUE DIAMOND CHERRY BLOSSOM

H12–14" • S24" • Z4(-30°) H15–18" • S24" • Z4(-30°) H9–12" • S14" • Z5(-20°) H18–22" • S24" • Z4(-30°) Late Wtr–Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Double; large flowers in Single; deep black flowers Single; striking purple blue Single, double and shades of orchid flowers semidouble; blush pink blooms H. x hybridus H. x hybridus H. x hybridus H. x hybridus

WINTER JEWELS® 72-CELLS SHIP AUG – JAN | 21-CELLS SHIP JAN – MAY.

H=Height | S=Spread | TC=Tissue Culture | SD=Seed 5 Winter Jewels® Orientalis Type

COTTON CANDY FIRE AND ICE GOLDEN LOTUS JADE STAR

H18–22" • S24" • Z4(-30°) H12–15" • S24" • Z5(-20°) H12–24" • S24" • Z5(-20°) H18–22" • S24" • Z4(-30°) Late Wtr–Spr • SD Wtr–Early Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Double; blush pink shades Double; white blossoms Double; yellow flowers, some Single; green flowers with adorned with deep pink with burgundy red, picotee burgundy markings edges edges H. x hybridus H. x hybridus H. x hybridus H. x hybridus

JADE TIGER ONYX ODYSSEY PAINTED PAINTED DOUBLE

H18–22" • S24" • Z4(-30°) H18–22" • S24" • Z4(-30°) H18–22" • S24" • Z4(-30°) H15–18" • S24" • Z4(-30°) Late Wtr–Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Double; green blooms lightly Double; shades of deep purple Single; white blooms brushed Double; white edge with brushed with purple to black with burgundy spotted, burgundy center

H. x hybridus H. x hybridus H. x hybridus H. x hybridus

skagithort.com | 800.459.3142 Winter Jewels® Orientalis Type

PEPPERMINT ICE PICOTEE PEARL RED SAPPHIRE ROSE QUARTZ

H18–22" • S24" • Z4(-30°) H12–18" • S24" • Z4(-30°) H18–22" • S24" • Z4(-30°) H18–22" • S24" • Z4(-30°) Late Wtr–Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Wtr–Early Spr • SD Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Double; light pink flowers Creamy white flowers, some Double; dark red to rose Double; picotee, with cream edged and streaked in dark semidouble, with dark pink flowers to yellow petals edged in red pink edges H. x hybridus H. x hybridus H. x hybridus H. x hybridus

RUBY WINE SLATE DOUBLE SPARKLING DIAMOND SUN FLARE

H18–22" • S24" • Z4(-30°) H18–22" • S24" • Z4(-30°) H18–22" • S24" • Z4(-30°) H18–24" • S18" • Z4(-30°) Late Wtr–Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Late Wtr–Spr • SD Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Cell Size 21, 72 Single; shades of glowing red Double; slate gray flowers, Double; snow white flowers Double; sunny yellow flowers very floriferous with burgundy edging

H. x hybridus H. x hybridus H. x hybridus H. x hybridus

WINTER JEWELS® 72-CELLS SHIP AUG – JAN | 21-CELLS SHIP JAN – MAY.

H=Height | S=Spread | TC=Tissue Culture | SD=Seed 7 Hellebore Gold Collection® Cultural Document

PLANTING DATES A Select potting date based on desired grade; summer planting is not recommended in any region: • Premium: suggested potting dates for top quality flowering plants, with high bloom count • Landscape: later potting will produce smaller plants, with modest bloom C Note that using the planting date listed will produce a full, beautiful, gallon plant. Planting even earlier will improve the quality. Yellow areas shown in the south are not suitable for growing Hellebores. B

Finish Size Plug Size Region A Region B Region C

Premium Landscape Premium Landscape Premium Landscape

Gallon 72-cell Mar 15–Apr 30 May 1–May 31 Mar 1–Mar 31 Apr 1–Apr 30 Mar 15–Apr 30 May 1–May 31 Aug 15–Sep 15 Aug 15–Sep 15

Gallon 21-cell — Aug 15–Aug 31 — Sep 1–Sep 30 — Aug 15–Sep 15

GROWER NOTES The following information is based on our own experience with this crop in the Pacific Northwest. Growth will vary depending on location, climate, growing medium and cultural practices. As always, where chemical use is involved, read the labels, follow the instructions and practice careful trialing methods. • Avoid planting when temperatures are above 80º F. Planting early in the season, in cooler temperatures, provides the best conditions for critical root development. • Helleborus niger prefers soil high in organic matter with good air space and drainage. Avoid soils with a high nitrogen starter charge. • Because of the longer crop time, be sure to factor the longevity of the lime in your regular mix to avoid pH drops and possible nutrient problems late in production. • A preventative treatment for root or crown rot is recommended after transplant, either through chemical drenching or the addition of RootShield® (Trichoderma harzianum) or other microbial soil additives. If using microbial products, be aware of the effect of fungicides on these products. • Monitor root development and fertility levels to avoid excess salts and prevent root rot. Fertilize based on the following seasonal guidelines: • During cool spring months, apply balanced fertilizer higher in nitrogen content. • During summer heat, significantly decrease or discontinue fertilizer use; Hellebore roots are sensitive to fertilizer burn. • During fall months, apply balanced fertilizer higher in potassium. If slow-release is incorporated into the soil mix, use low label rates and choose a feed that will release at lower spring temperatures, when plants are in most active growth. If necessary, supplementing with liquid feed will give better control over EC in summer heat when plants are more sensitive to salts buildup. Screen the pH and EC of the potting medium routinely to maintain the recommended levels: • EC: 1.0–1.8 mS/cm during the growing season; when forcing plants: 1.0 mS/cm • pH: 5.5–6.0 • It is important that the pots you use, whether black or colored, not allow light to pass through the plastic, as Helleborus roots are sensitive to heat and light and roots will not develop properly in the container if exposed to light. • To test, hold a flashlight up to the plastic; no light should be visible on the other side. • Keep plants evenly moist, but not overly wet. Do not allow to wilt repeatedly. • Monitor for thrips, aphids, Botrytis and leaf spots during the growing season and treat accordingly. Check crowns and developing flower buds carefully for thrips, as they will damage blossoms by eating stamens at the bud stage, and damage may go unnoticed until bloom. Protect from freezing temperatures according to your geographic area (see map, previous page): • Regions A and C: Can be grown outdoors until freezing weather; do not allow to freeze. Prior to freezing weather, move plants to a greenhouse where night temperatures of 36–40º F can be maintained. • Region B: Can be grown outdoors with winter protection; do not allow to freeze. Protect foliage from severe weather to avoid winter burn.

skagithort.com | 800.459.3142 Hellebore Gold Collection® Cultural Document

PLANT DATA Use the notes below to supplement the following varietal chart. • Height and Spread: Represents height of foliage/flower; average spread in the garden. • USDA Zone and Bloom Time: The hardiness and bloom time reflect our experience with the variety as grown in the Pacific Northwest. • Planting Depth • Crown level with soil: Plant liners level WHEN PLANTED TOO HIGH WHEN PLANTED CORRECTLY with the soil, taking care not to bury the too deeply. • Deep: Cover the crown with ½" of soil at transplant so first watering leaves it only slightly exposed. If planted too high, the central bud stem may fall off center, and buds will form at the crown, but will not leaf out and produce full plants. • Spacing: Avoid spacing plants during periods of high heat to lessen stress. Soil should not be visible when plants are properly positioned; use foliage to provide shade to roots. Soil temperature is the most critical factor in healthy root development. Plants will benefit from higher light levels if temperatures are below 80º F, so provide shade primarily to reduce soil temperature rather than light levels. • Yes, early: These are the most vigorous varieties and typically become crowded fairly quickly, needing spacing to prevent petiole stretch and to allow for more even application of regulators. Space early, but avoid overspacing to prevent stretched plants. Two-step spacing may be beneficial. • Yes, when crowded: These varieties will also need spacing when the canopy becomes crowded, but are not as apt to overgrow as the more vigorous cultivars. • Only when necessary: These are the most heat sensitive varieties and will benefit from being unspaced for as long as possible to allow the canopy to shade the roots. They often need spacing at some point if they become crowded and begin to stretch, or to improve air circulation and lessen foliar disease, but should not be prematurely spaced. • Growth Regulator Needs: Use growth regulators judiciously to prevent petiole stretch. Frequency and rates may need adjustment. Discontinue growth regulators after early August, or bud development may be affected. • Low: These naturally compact varieties need regulators primarily to prevent petiole stretch. Start with lower rates 2500 3750 ppm of daminozide (B-Nine® or Dazide®) and add 5 ppm Bonzi® (paclobutrazol) for additional control if needed. It is better to spray lower rates more often than to overregulate these varieties. • Medium: Use slightly higher rates: 3750–5000 ppm daminozide ( B-Nine® or Dazide®) and 5–10 ppm paclobutrazol (Bonzi® or Paczol®). • High: On these vigorous cultivars, proper timing of regulators is essential to the production of quality plants that do not become overgrown. Growth regulators need to be applied early and more often. To control petiole stretch in young plants apply 3750 ppm daminozide (B-Nine® or Dazide®) and 5 ppm paclobutrazol (Bonzi® or Paczol®) to keep growth compact. When foliage is just over the edge of the pot, a 1 ppm paclobutrazol (Bonzi®) drench is recommended. Repeat drenches every 3–4 weeks as needed in summer, especially on Pink Frost. • Discontinue drenching in late August or early September to allow crown buds to produce foliage, and return to foliar sprays of B-Nine® only if needed.

H=Height | S=Spread | TC=Tissue Culture | SD=Seed 9

LATE LATE WINTER–SPRING LATE MID WINTER JAN FEB MAR APR BLOOM TIME BLOOM

DEC

FALL–WINTER EARLY NOV

Low Low Low Low Low Low PGR PGR RATE Yes, earlyYes, High earlyYes, High Yes, when crowdedYes, High CULTURAL INFORMATION Deep Deep Deep HELLEBORE CULTURAL DOCUMENT CULTURAL HELLEBORE SHIPPING AVAILABILITY 21-CELL 72-CELL DEPTH PLANTING SPACING Aug – Jan Oct – June with soil level Crown when crowded Yes, Aug – Jan Jan – May with soil level Crown when crowded Yes, Med Aug – Jan Jan – MayAug – Jan with soil level Crown Jan – MayAug – Jan Only when necessary with soil level Crown Jan – May Only when necessary with soil level Crown when crowded Yes, Aug – Jan Jan – May with soil level Crown when crowded Yes, Aug – Jan Jan – MayAug – Jan with soil level Crown Jan – MayAug – Jan when crowded Yes, with soil level Crown Jan – MayAug – Jan Med when crowded Yes, with soil level Crown Jan – May Med when crowded Yes, Med Aug – Jan Jan – May Jan – May Aug – Jan with soil level Crown when crowded Yes, Aug – Dec Jan – May VARIETY Gold Collection® Merlin® Gold Collection® Ivory Prince® Series Winter Jewels® Gold Collection® Ice N’ Roses® Series Gold Collection® Gold Collection® Jacob Gold Collection® Gold Collection® Diva Gold Collection® Jesko Gold Collection® Gold Collection® Camelot® Gold Collection® skagithort.com | 800.459.3142 Mahogany Snow Gold Collection® Marlon Gold Collection® Monte Christo® Gold Collection® Star® Shooting Gold Collection® Pink Frost Gold Collection® 2020-21 Broker List

Broker Phone Fax or Email City, State 2Plant International 614-565-8808 [email protected] Powell, OH Ball Horticultural Company (US & Canada) 800-879-2255 800-234-0370 West Chicago, IL Bondi Plant Brokerage 619-403-0238 [email protected] Riverview, FL Eason Horticultural Resources, Inc (EHR) 800-214-2221 [email protected] Fort Wright, KY Express Seed Company 800-221-3838 [email protected] Oberlin, OH Flamingo Holland Inc 760-734-1033 [email protected] Vista, CA Fleurizon, LLC 805-389-8980 [email protected] Camarillo, CA Florasource, Ltd 949-498-1131 [email protected] San Clemente, CA ForemostCo, Inc 800-421-8986 [email protected] Miami, FL Fred C Gloeckner Company 800-345-3787 [email protected] Harrison, NY Germania Seed Company 800-380-4721 [email protected] Chicago, IL Griffin 800-323-7253 [email protected] Lisle, IL Henry F Michell Company 800-422-4678 [email protected] King of Prussia, PA Jack Van Klaveren 800-665-1642 [email protected] St Catharines, ON Jack Van Klaveren (Western Canada) 800-498-7403 [email protected] Delta, BC Koenig & Associates, Inc 503-282-3183 [email protected] Portland, OR M & M Plant Sales 831-245-9273 [email protected] Hollister, CA McHutchison 800-943-2230 [email protected] Wayne, NJ Messick Company, LLC 408-871-9816 [email protected] Campbell, CA Mid Atlantic Plant Company, Inc 800-366-0350 [email protected] Newark, DE Paridon Horticultural, Ltd 604-596-3422 604-596-6155 Delta, BC Paulger’s Plants 800-400-0095 [email protected] San Rafael, CA Plant Development Services 251-964-6755 [email protected] Loxley, AL POPPYSTARTS, INC 360-202-6000 [email protected] Mount Vernon, WA Raymond Perri Co, Inc 845-744-6801 [email protected] Pine Bush, NY Ron Iwasaki Horticultural Sales 503-628-1969 [email protected] Hillsboro, OR Star Roses & Plants 800-457-1859 559-528-1088 Dinuba, CA Van Noort & Sons Bulb Company 604-888-6555 [email protected] Langley, BC Vaughan’s Horticulture 855-864-3300 [email protected] Naperville, IL Vis Seed Company, Inc 626-445-1233 [email protected] Arcadia, CA WeHoP (Western Horticultural Products) 800-669-6480 360-344-3555 Port Townsend, WA

Skagit Horticulture propagation facility Design your Hellebore program with the support of our experts! With over twenty years’ liner production expertise, our highly skilled team is ready to take your Hellebore program from the everyday to the exceptional. Skagit Horticulture is the largest producer of Gold Collection® Hellebores in the U.S.

We are proud to partner with world-class breeders to bring the best genetics and horticultural innovation to market. We sell exclusively through our approved broker network, honoring our valued relationship with the top horticulture sales organizations in the country. We are deeply invested in the power of partnerships, and one hundred percent committed to your success.

V.06.30.20 skagithort.com | (800) 459-3142

H=Height | S=Spread | TC=Tissue Culture | SD=Seed 12