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


Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Helleborus (hel-eh-BORE-us) (Info)
Cultivar: Ivory Prince
Additional cultivar information:(PP16199, aka Walhelivor)
Hybridized by Tristram
Registered or introduced: 2006
Synonym:Helleborus x nigersmithii



Foliage Color:


Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


6-12 in. (15-30 cm)

12-18 in. (30-45 cm)


9-12 in. (22-30 cm)


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)

Sun Exposure:

Sun to Partial Shade


All parts of plant are poisonous if ingested

Bloom Color:

White/Near White

Bloom Time:

Late Winter/Early Spring

Mid Winter




Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

Patent Information:


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


This plant has been said to grow in the following regions:

Flagstaff, Arizona

Sorrento, British Columbia

Los Angeles, California

Westport, Connecticut

Pensacola, Florida

Marietta, Georgia

Fallston, Maryland

Nottingham, Maryland

Dracut, 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

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

Gardeners' Notes:


On Apr 26, 2012, hillsidegardens from Nottingham, MD wrote:

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 multiple buds in December and opened to beautiful striated pink blooms in January. Blooms sit upright above plant so you can appreciate how lovely they are. Continued to gradually change colors (antiqued) and are still open, plus has rebloomed in the middle of April(at least four new blossoms), although colors are not as striking as the January blooms. Love the wine red stems and the bluish- gray, slightly veined leaves. Has spread to 12 inches in one season. Was looking forward to seeds, so I am glad I was advised to divide it instead. Bought one other one to add two days ago.
I just love this hellebore and am taking out some of my older oriental... read more


On Feb 24, 2012, atcps from WOODLAWN, TN wrote:

I bought several pots of these 'Ivory Prince' hellebores about four years ago and I can say they are simply stunning and the easiest hellebores to grow in my garden. They have not seeded and I think you may have to divide them to get more. Which is too bad because I wish they would spread faster! The white flowers are a never fail in my garden in nearly full shade conditions in Zone 7A in the February/March time frame. The leaves are much stouter and more attractive than the normal orientalis species. Easy care and drought tolerant. They stay short overall but the flowers are slightly above the foliage and very easy to see. Stunning hellebore!


On Apr 25, 2010, ryguy319 from Owosso, MI (Zone 5b) wrote:

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 from experience I would say shaded would be the best since I have a Hellebore Orientalis and have it in my shaded area and it thrives.
Love these plants they are the most forgiving plants to grow they just are very easy and hardy to come back and better than ever every year.


On Jan 11, 2010, buddyjack2 from Royal Oak, MI (Zone 6b) wrote:

I agree, a great little plant! Blooms lasted from March thru mid-September and the leathery leaves stay upright and attractive even in the Michigan winter snow. Front-facing flowers don't droop like other helleborus I've seen. Hope to put in more this spring.


On Mar 31, 2009, Waywardowl from Flagstaff, AZ wrote:

What a great little plant. I live in Zone 4, at 7000' ft elevation, extreamly dry conditions, with persistant deer and elk populations. This plant has surrvived all of these challenges, and come back more beautiful each year. I think that it is the most under-appreciated perennial on the market!


On Mar 17, 2009, htop from San Antonio, TX (Zone 8b) wrote:

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 stems. Bred by David Tristram of England, this is a cross of a cross of a cross. Its a cross between Helleborus niger and another hellebore that is a cross between H. niger and H. x sternii. H. x sternii is a cross between H. lividus and H. argutifolius. It is disease resistant as well as rabbit and deer resistant. The flowers are unusual because they face up and outward from the plant and are flat so the complete blooms are easily seen. Propagate by dividing in late spring to early summer.

WARNING: Hellebores are poisonous.


On Nov 22, 2008, Hudson3 from Hudson, NY wrote:

All around beautiful. Flowers slowly change from green to ivory to pink, foliage is an amazing blue-green with reddish stems. Bought one last year overwintered fine, put in two more this year. I have it in partial sun, zone 5.

Note - this is a sterile hybrid, so if you want self-seeded colonies of hellebores Ivory Prince is not a good choice. But they do form vigorous clumps, I have yet to divide.


On Jul 10, 2006, ifonly from Brookfield, CT wrote:

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 mail order and were just $2 each. Shopping gene took over.

Love the small bluish leaves. Wonder how long before they bloom. Patience required. That, and actually planting them.