Rheum Species, Noble Rhubarb, Sikkim Rhubarb

Rheumnobile

Genus
Rheum (REE-um)
Species
nobile (no-BIL-ee)
Synonym
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Grown for foliage
Herbaceous
Height
36-48 in. (90-120 cm)
4-6 ft. (1.2-1.8 m)
Spacing
36-48 in. (90-120 cm)
Hardiness
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)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
Danger
Parts of plant are poisonous if ingested
Bloom Color
Cream/Tan
Bloom Time
Mid Summer
Other Details
Category
Perennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
Patent Information
Non-patented
Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
Seed Collecting
Allow seedheads to dry on plants; remove and collect seeds
Regional

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

Knik-Fairview, Alaska

Lakes, Alaska

Meadow Lakes, Alaska

Tanaina, Alaska

Wasilla, Alaska

Featured Videos

Gardener's Notes:

1
positive
1
neutral
0
negative
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J
Palmer, AK (Zone 3b) | September 2009 | positive

The Alaska Rock Garden Society collected a small amount of seed from Big Snow Mountain in Yunnan in 2000. Of this seed, one plant germina...Read More

D
Brandon, MB (Zone 2b) | July 2006 | neutral

The noble rhubarb (Or as it is called in the Himalayas, chuka) is a giant perennial grown as a vegetable. AN interesting note about this ...Read More

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