Plant
Rhubarb
Rheum rhabarbarum
Also known as: pie plant, Rheum rhabarbarum
Hardy perennial vegetable (*Rheum rhabarbarum*, family Polygonaceae) grown for its tart edible stalks. Originated in Siberia and Central Asia; cultivated in China for medicinal use for over 2,000 years; brought to Europe for medicinal use, then transitioned to culinary use in the 18th century. One of the few productive perennial vegetables in temperate gardens — a single crown produces 5–10+ pounds of stalks per year for 10–20 years from one planting. The leaves are toxic (oxalic acid); only the stalks are edible.
Rhubarb is among the most-rewarding perennial vegetables a temperate gardener can plant. The first year produces little (the crown is establishing); years 2–3 the plant begins producing; years 4–20+ it produces 5–10+ pounds of stalks annually with essentially no attention beyond winter mulching.
The plant earns its place in the garden through endurance, not effort.
How to grow
- Plant crowns in early spring (or fall in mild zones)
- Choose a permanent spot — rhubarb stays put for decades
- Site: full sun in cool climates; light afternoon shade in warmer regions
- Spacing: 3–4 feet between crowns
- Soil: rich, well-drained, deep; pH 5.5–6.5; rhubarb is a heavy feeder
- Plant the crown with growth buds 1–2 inches below surface
- Water deeply through the first season; established plants tolerate considerable drought
- Don’t harvest year 1; lightly year 2; full harvest year 3 onward
- Mulch heavily in fall — compost and/or aged manure on the crown
- Divide every 5–10 years when production declines — dig and split with a spade, replant divisions
Harvest
- Stalks at 12+ inches are ready; pull rather than cut (twist and pull at the base)
- Spring harvest window: 6–8 weeks in temperate climates
- Stop harvesting by midsummer — let the plant build energy for next year
- Don’t take more than 1/3 of stalks at once — let the plant maintain photosynthetic mass
- Leaves toxic: oxalic acid; compost them; never eat or feed to livestock
Climate notes
- Cold-hardy: needs winter dormancy; struggles in climates without sustained cold below 40°F
- Heat-intolerant: declines in hot-summer climates (zone 8+); choose cool microclimate or skip
- Optimal zones: 3–7
- Snow cover is helpful but not required for survival
Varieties
- Victoria — old standard; green stalks with red bases; widely-adapted
- Crimson Red / Crimson Cherry — deep red stalks; sweeter
- MacDonald — heat-tolerant Canadian variety
- Glaskins Perpetual — bred for low oxalic acid; longer harvest window
- Cherry Red, Strawberry, Canada Red — various deep-red types
The red varieties look better in pies; the green varieties (Victoria) are often more vigorous producers. Flavor is similar across types.
Pests and disease
- Crown rot in waterlogged soils
- Rhubarb curculio (occasional, regional)
- Generally low pressure — rhubarb is one of the most pest-resistant garden plants
In the kitchen
- Pie — the classic American use; usually paired with strawberry to balance the tartness
- Crumble, crisp, cobbler
- Compote — stewed with sugar, served with yogurt or ice cream
- Sauce for pork or duck
- Jam and chutney
- Cordial / shrub (vinegar-based syrup) for cocktails
- Roasted with honey — caramelizes beautifully
Forcing
The traditional English practice of forcing rhubarb: covering the dormant crown in late winter with a forcing pot (or upturned bucket) to exclude light, causing the emerging stalks to grow long, pale pink, and exceptionally tender. The forced stalks have a refined flavor preferred for finer culinary uses. The plant is exhausted by forcing and should be given a year’s rest afterward.
See also
Auto-generated from this entry’s typed relations: frontmatter, grouped by relation type so the editorial signal isn’t flattened.
- Subset of: [[gardening]]
- Shares approach with: [[asparagus]]
- Member of: [[plants]]
Sources
- Various Extension publications on rhubarb culture
- The Cook’s Garden by Shepherd Ogden — perennial vegetables section
Rooted in life.
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