Rhapontic Rhubarb
6
5
2Will it grow where I live?
Rhapontic Rhubarb is hardy to zone 3 – that covers all of Central Europe and the British Isles, and every USDA zone from 3 upwards.
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Profile
- Family
- Polygonaceae
- Habit
- perennial
- Height
- 1.5 m
- Spread
- 1.2 m
- Growth
- medium
- Lifespan
- 15 years
- First yield
- after 2 years
- Hardiness
- zone 3–8
- Shade tolerance
- light shade
- Soil
- Sand, Silt
- Soil moisture
- semi-dry – very moist
- pH
- 5.5 – 7.5
- Synonyms
- False Rhubarb, False rhubarb
Flowering & harvest
| J | F | M | A | M | J | J | A | S | O | N | D | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Flowering | ||||||||||||
| Leaf harvest |
Uses
Growing
Rheum rhaponticum prefers a deep, fertile, moderately heavy, humus rich, moisture retentive, well-drained soil in sun or semi-shade. It grows well in heavy clay soils and is hardy to at least -20°C. Propagation is by seed sown in autumn or spring in a cold frame, or by division in early spring or autumn. Plants tolerate pruning poorly. It is shade tolerant but prefers sunny positions. Regular watering is needed during establishment.
⚠️ Hazards
Toxicity: toxic
Frequently asked questions
Rhapontic Rhubarb: how big does it get?
Rhapontic Rhubarb (Rheum rhaponticum) grows as a perennial and reaches roughly 1.5 m in height when mature, with a spread of about 1.2 m. Growth is medium.
Rhapontic Rhubarb: what site does it need?
Rhapontic Rhubarb tolerates light shade. Suitable soils are Sand, Silt. Soil moisture should be in the range semi-dry – very moist. The pH may lie between 5.5 and 7.5.
Rhapontic Rhubarb: is it hardy?
Rhapontic Rhubarb is listed as hardy in zone 3–8 and survives normal winters outdoors there.
Rhapontic Rhubarb: will it grow in Central Europe?
Rhapontic Rhubarb is hardy to zone 3 – that covers all of Central Europe and the British Isles, and every USDA zone from 3 upwards.
Rhapontic Rhubarb: when does it flower?
In a temperate northern-hemisphere climate it flowers from May to June.
Rhapontic Rhubarb: is it poisonous?
Rhapontic Rhubarb is classified as toxic. With wild plants, never rely on a database alone — only on a confident identification.
Rhapontic Rhubarb: what is it used for?
Rated on a scale up to 10: Edible 6/10, Medicinal 5/10, Other uses 2/10.
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Community experience
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