Helleborus, Hellebore, Black Hellebore, Christmas Rose, Lenten Rose 'Ivory Prince'

Helleborus

Family
Ranunculaceae (ra-nun-kew-LAY-see-ee)
Genus
Helleborus (hel-eh-BORE-us)
Synonym
Helleborus x nigersmithii
Sun Exposure
Sun to Partial Shade
Foliage
Evergreen
Smooth
Height
6-12 in. (15-30 cm)
12-18 in. (30-45 cm)
Spacing
9-12 in. (22-30 cm)
Hardiness
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
All parts of plant are poisonous if ingested
Bloom Color
White/Near White
Bloom Time
Late Winter/Early Spring
Mid Winter
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Blue-Green
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Patented
Propagation Methods
By dividing the rootball
From herbaceous stem cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed
Regional

This plant is said to grow outdoors in the following regions:

Flagstaff, Arizona

Sorrento, British Columbia

Los Angeles, California

Westport, Connecticut

Pensacola, Florida

Marietta, Georgia

Fallston, Maryland

Nottingham, Maryland

Dracut, Massachusetts

Uxbridge, Massachusetts

Dearborn, Michigan

Owosso, Michigan

Royal Oak, Michigan

Ringwood, New Jersey

Croton On Hudson, New York

Hudson, New York

Durham, North Carolina

Coshocton, Ohio

Forest Grove, Oregon

Portland, Oregon

Wynnewood, Pennsylvania

Cumberland, Rhode Island

Clarksville, Tennessee

Woodlawn, Tennessee

Mc Kinney, Texas

San Antonio, Texas

Virginia Beach, Virginia

Brinnon, Washington

Poulsbo, Washington

Pullman, Washington

Puyallup, Washington

Seattle, Washington

South Hill, Washington

Walla Walla, Washington

show all

Featured Videos

Gardener's Notes:

6
positives
2
neutrals
0
negative
Sort By:
Sort By:
H
Nottingham, MD | April 2012 | positive

Bought this plant in spring of 2011. Sat quietly in semishade most of the summer. But began to grow in cooler, wetter days of fall, got m...Read More

A
A
WOODLAWN, TN | February 2012 | positive

I bought several pots of these 'Ivory Prince' hellebores about four years ago and I can say they are simply stunning and the easiest hell...Read More

R
Owosso, MI (Zone 5b) | April 2010 | positive

I too live in Michigan and just bought this plant and the tag on it says partial to full shade so mine is going in my shaded area. And f...Read More

B
Royal Oak, MI (Zone 6b) | January 2010 | positive

I agree, a great little plant! Blooms lasted from March thru mid-September and the leathery leaves stay upright and attractive even in th...Read More

W
Flagstaff, AZ | March 2009 | positive

What a great little plant. I live in Zone 4, at 7000' ft elevation, extreamly dry conditions, with persistant deer and elk populations. T...Read More

H
H
San Antonio, TX (Zone 8b) | March 2009 | neutral

I have not had this plant long enough to rate it except for the beauty of its changing bloom colors and blue-green foliage on wine-red st...Read More

H
Hudson, NY | November 2008 | positive

All around beautiful. Flowers slowly change from green to ivory to pink, foliage is an amazing blue-green with reddish stems. Bought one...Read More

I
I
Brookfield, CT | July 2006 | neutral

Just a start.

Bought 5 Ivory Prince at White Flower Farm's sale a few weeks ago. They are in the - what - 2" pot sold by ...Read More

Featured
Spotted Pea-blue
(Euchrysops cnejus)
Purple Finch
(Haemorhous purpureus)
Featured
Spotted Pea-blue
(Euchrysops cnejus)
Purple Finch
(Haemorhous purpureus)