2020-21 HELLEBORE PROGRAM - Skagit Horticulture · peachy pink. H12–15” • S24” • Z5(-20°) Wtr–Early Spr • TC Cell Size 21, 72. Pinky white buds open to pink, maturing

2020-21 HELLEBORE PROGRAM

Helleborus HGC® Ice N’ Roses® Early Red

skagithort.com | 800.459.3142

H13–24" • S24" • Z5(-20°) • WtrTC • Cell Size 21, 72Multiple stems of large, deep rosy red blooms

H13–24” • S24” • Z5(-20°) • WtrTC • Cell Size 21, 72Striking purple red blooms on long stems appear in early winter

H13–24” • S24” • Z5(-20°) • WtrTC • Cell Size 21, 72White to creamy yellow blooms with dramatic burgundy red picotee

H13–24” • S24” • Z5(-20°) • WtrTC • Cell Size 21, 72Creamy shell pink blossoms emerge in early winter and last through spring

H. x glandorfensis: USPPP

H. x glandorfensis: USPPPH. x glandorfensis: USPPP H. x glandorfensis: USPPP

HGC® ICE N’ ROSES® BRUNELLO

HGC® ICE N’ ROSES®EARLY RED

HGC® ICE N’ ROSES®DARK PICOTEE

HGC® ICE N’ ROSES®EARLY ROSE

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

H13–24" • S24" • Z5(-20°) • Wtr TC • Cell Size 21, 72Nonstop, deep maroon red, upward-facing flowersH. x glandorfensis ‘COSEH 4600’: USPPP

HGC® ICE N’ ROSES® BAROLO

Helleborus Gold Collection®

HGC® ICE N’ ROSES® SERIESBred 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 well in full sun in all but the hottest climate.This series is sure to be the star of your Hellebore program!

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.

H=Height | S=Spread | TC=Tissue Culture | SD=Seed 3

H8–10” • S13” • Z4(-30°) Fall • TC • Cell Size 21, 72Very early-blooming pure white flowers

H. niger ‘HGC Diva”: USPPP

HGC® DIVA

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 blush pink in cooler weather.

H9–12” • S13” • Z4(-30°) Wtr • TC • Cell Size 21, 72Large, single, white blooms age to light green or blush pink in cool weather

H. niger ‘HGC Jacob”: USPP #17799

HGC® JACOB

H10” • S12” • Z4(-30°) Wtr • TC • Cell Size 21, 72Large white blooms with overlapping petals emerge in early winter

H. niger ‘COSEH 1000’: USPP #25316

HGC® JESKO

H13–24" • S24" • Z5(-20°) Wtr • TC Cell Size 21, 72Shell pink blooms with deep pink, picotee edge

H. x glandorfensis ‘COSEH 5000’: USPPP

HGC® ICE N’ ROSES® PICOTEE

H13–24” • S24” • Z5(-20°) Wtr • TC Cell Size 21, 72Unique bicolored blooms in shades of white to deep rose pinkH. x glandorfensis: USPPP

HGC® ICE N’ ROSES® ROSADO

H13–24” • S24” • Z5(-20°) Wtr • TC Cell Size 21, 72An abundance of large, rose pink, upward-facing flowersH. x glandorfensis ‘COSEH 4200’:USPP #28297

HGC® ICE N’ ROSES® ROSE

H13–24” • S24” • Z5(-20°) Wtr • TC Cell Size 21, 72White, upward-facing flowers

H. x glandorfensis ‘COSEH 4500’:USPP #28293

HGC® ICE N’ ROSES® WHITE

H13–24" • S24" • Z5(-20°) Wtr • TC Cell Size 21, 72Large, forward-facing wine colored flowers bloom on tall stemsH. x glandorfensis: USPPP

HGC® ICE N’ ROSES® MERLOT

H13–24” • S24” • Z5(-20°) Wtr • TC Cell Size 21, 72Profusion of ruby red,upward-facing flowersH. x glandorfensis ‘COSEH 4100’:USPP #28296

HGC® ICE N’ ROSES® RED

H13–24" • S24" • Z5(-20°) Wtr • TC Cell Size 21, 72Unique dusky, deep red blooms

H. x glandorfensis: USPPP

HGC® ICE N’ ROSES® NIGHTINGALE


H11” • S24” • Z5(-20°)Wtr–Early Spr • TC • Cell Size 21, 72Creamy white blossoms blushed with peachy pink

H12–15” • S24” • Z5(-20°)Wtr–Early Spr • TCCell Size 21, 72Pinky white buds open to pink, maturing to deep burgundy

H18–22” • S24” • Z5 (-20°) Wtr–Early Spr • TC Cell Size 72White flowers fade to sage green

H. x ericsmithii ‘COSEH 860’: USPP# 23773

H. x ericsmithii ‘COSEH 710’: USPP #21063


HGC® MONTE CHRISTO

HGC® PINK FROST HGC® SHOOTING STAR®

H12–15” • S20” • Z5(-20°)Wtr–Early Spr • TC • Cell Size 21, 72Large, creamy white flowers age to mahogany pinkH. x ballardiae ‘COSEH 930’: USPP #23898

HGC® MAHOGANY SNOW

H10–18” • S22” • Z5(-20°)Late Wtr–Spr • TCCell Size 21, 72Blush buds open to large cream flowers that age to green

H12–15” • S24” • Z5(-20°)Late Wtr–Spr • TC Cell Size 21, 72Light to medium pink flowers age to a very dark burgundy


H. x ballardiae ‘COSEH 810’:USPP #22350

HGC® MARLON HGC® MERLIN®

HELLEBORUS IVORY PRINCE

H12–18" • S24" • Z4(-30°)Wtr–Spr • TC • Cell Size 21, 72A classic favorite: ivory flowers flushed with pink and green H. 'Walhelivor': USPP #16199

Ships October through June

SNOW ROSE

The gorgeous Snow Rose from the Helleborus Gold Collection® sets the Gold Standard for the best in Hellebore genetics.Boasting stunning, large, upward-facing flowers from the first year of planting, their colors range from pure white to deep burgundy.

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 pure white to deep burgundy.

H12–15” • S20” • Z5(-20°) • WtrTC • Cell Size 21, 72Pink buds open to large, pinkish cream flowers that face outwardH. x ballardiae ‘COSEH 940’: USPP #23772

HGC® CAMELOT®


CHERRY BLOSSOM

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Single, double and semidouble; blush pink bloomsH. x hybridus

AMBER GEM

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SD • Cell Size 21, 72Double; light yellow flowers, with touches of red or pinkH. x hybridus

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.

Commonly blooms the second year, but they are worth the wait!

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SD • Cell Size 21, 72Single; apricot/peach blooms, some with red markings

APRICOT BLUSH

H. x hybridus

Winter Jewels®

Orientalis Type

H15–18" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Single; deep black flowers

BLACK DIAMOND

H. x hybridus

H9–12" • S14" • Z5(-20°)Late Wtr–Spr • SDCell Size 21, 72Single; striking purple blue flowers

BLUE DIAMOND

H. x hybridus

BERRY SWIRL

H12–14" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; large flowers in shades of orchid

H. x hybridus

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


H12–24" • S24" • Z5(-20°)Late Wtr–Spr • SD Cell Size 21, 72Double; yellow flowers, some with burgundy red, picotee edges

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Single; green flowers with burgundy markings

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; green blooms lightly brushed with purple

H. x hybridus H. x hybridus

H. x hybridus

GOLDEN LOTUS JADE STAR

JADE TIGER

H12–15" • S24" • Z5(-20°)Wtr–Early Spr • SDCell Size 21, 72Double; white blossoms adorned with deep pink edges

FIRE AND ICE

H. x hybridus

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; blush pink shades

COTTON CANDY

H. x hybridus

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; shades of deep purple to black

ONYX ODYSSEY

H. x hybridus

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Single; white blooms brushed with burgundy

H15–18" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; white edge with spotted, burgundy center

PAINTED DOUBLEPAINTED

H. x hybridusH. x hybridus

Winter Jewels®

Orientalis Type


H. x hybridus


H18–22" • S24" • Z4(-30°)Wtr–Early Spr • SDCell Size 21, 72Double; picotee, with cream to yellow petals edged in red

ROSE QUARTZ

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Single; shades of glowing red

SLATE DOUBLERUBY WINE

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; slate gray flowers, very floriferous

SUN FLARE

H18–24" • S18" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; sunny yellow flowers with burgundy edging

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; snow white flowers

SPARKLING DIAMOND


PICOTEE PEARL

H12–18" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Creamy white flowers, some semidouble, with dark pink edges

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; light pink flowers edged and streaked in dark pink

H18–22" • S24" • Z4(-30°)Late Wtr–Spr • SDCell Size 21, 72Double; dark red to rose flowers

RED SAPPHIREPEPPERMINT ICE

H. x hybridus H. x hybridusH. x hybridus

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

Winter Jewels®

Orientalis Type


GROWER NOTESThe 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.

Hellebore Gold Collection® Cultural Document


PLANTING DATESSelect potting date based on desired grade; summer planting is not recommended in any region: • Premium: suggested potting dates for top quality f lowering plants, with high bloom count • Landscape: later potting will produce smaller plants, with modest bloomNote 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.

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 31Aug 15–Sep 15

Mar 1–Mar 31 Apr 1–Apr 30 Mar 15–Apr 30 May 1–May 31Aug 15–Sep 15

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

C

A

B


PLANT DATAUse 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 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.

Hellebore Gold Collection® Cultural Document

WHEN PLANTED CORRECTLYWHEN PLANTED TOO HIGH


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Broker Phone Fax or Email City, State2Plant International 614-565-8808 [email protected] Powell, OHBall Horticultural Company (US & Canada) 800-879-2255 800-234-0370 West Chicago, ILBondi Plant Brokerage 619-403-0238 [email protected] Riverview, FLEason Horticultural Resources, Inc (EHR) 800-214-2221 [email protected] Fort Wright, KYExpress Seed Company 800-221-3838 [email protected] Oberlin, OHFlamingo Holland Inc 760-734-1033 [email protected] Vista, CAFleurizon, LLC 805-389-8980 [email protected] Camarillo, CAFlorasource, Ltd 949-498-1131 [email protected] San Clemente, CAForemostCo, Inc 800-421-8986 [email protected] Miami, FLFred C Gloeckner Company 800-345-3787 [email protected] Harrison, NYGermania Seed Company 800-380-4721 [email protected] Chicago, ILGriffin 800-323-7253 [email protected] Lisle, ILHenry F Michell Company 800-422-4678 [email protected] King of Prussia, PAJack Van Klaveren 800-665-1642 [email protected] St Catharines, ONJack Van Klaveren (Western Canada) 800-498-7403 [email protected] Delta, BC Koenig & Associates, Inc 503-282-3183 [email protected] Portland, ORM & M Plant Sales 831-245-9273 [email protected] Hollister, CAMcHutchison 800-943-2230 [email protected] Wayne, NJMessick Company, LLC 408-871-9816 [email protected] Campbell, CAMid Atlantic Plant Company, Inc 800-366-0350 [email protected] Newark, DEParidon Horticultural, Ltd 604-596-3422 604-596-6155 Delta, BCPaulger’s Plants 800-400-0095 [email protected] San Rafael, CAPlant Development Services 251-964-6755 [email protected] Loxley, ALPOPPYSTARTS, INC 360-202-6000 [email protected] Mount Vernon, WARaymond Perri Co, Inc 845-744-6801 [email protected] Pine Bush, NYRon Iwasaki Horticultural Sales 503-628-1969 [email protected] Hillsboro, ORStar Roses & Plants 800-457-1859 559-528-1088 Dinuba, CAVan Noort & Sons Bulb Company 604-888-6555 [email protected] Langley, BCVaughan’s Horticulture 855-864-3300 [email protected] Naperville, ILVis Seed Company, Inc 626-445-1233 [email protected] Arcadia, CAWeHoP (Western Horticultural Products) 800-669-6480 360-344-3555 Port Townsend, WA

Skagit Horticulture propagation facility

2020-21 Broker List


skagithort.com | (800) 459-3142

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

Documents

2020-21 HELLEBORE PROGRAM - Skagit Horticulture · peachy pink. H12–15” • S24” • Z5(-20°) Wtr–Early Spr • TC Cell Size 21, 72. Pinky white buds open to pink, maturing