Rheum rhabarbarum

Garden Rhubarb

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Tall herbaceous perennial grown for edible red stalks. Features large pleated green leaves and tall flower spikes in summer. Foliage is toxic due to oxalic acid.
yard Kitchen garden plants wb_sunny Half-shade pets Not pet-safe
info Pot sizes shown are estimations. Real dimensions may vary depending on the merchant.
Merchant Pot Size Availability Price
Amazon.com 2-3 in Out of Stock $24.00 Buy
info

Plant Details

Common Name Garden Rhubarb
Family Polygonaceae
Genus Rheum
Species Rhabarbarum
Origin Central Asia
Blooming Foliage and flowers in summer, tall spikes.
Leaf Color Green with reddish veins
Sunlight Half-shade
Category Kitchen garden plants
Pet Friendly close No
yard

Care & Maintenance

terrain
Soil

Rich, moist, well-drained soil with high organic matter and compost.

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Watering

Keep soil consistently moist during growing season, reduce after harvest.

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Sunlight & Care

Full sun for best stalk production, tolerates partial shade in hot climates.

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Fertilization

Apply compost or balanced fertilizer annually in spring before growth starts.

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Pruning

Remove flower spikes to encourage stalk growth; remove foliage after frost dies back.

Pest Control Aphid Leaf Miner Slug Snail

These are the insects and pathogens that commonly interact with this plant, including pests, parasites, and organisms typically associated with its care.

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Seasonal Periods

local_florist Flowering Period 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
agriculture Harvesting Period 3 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
eco Leaf Persistence 12 months
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
thermostat

Growing Parameters

thermostat
Temperature
41° – 82°
Fahrenheit
Ideal ambient air temperature range for healthy growth
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Humidity
40% – 70%
% relative
Optimal relative air humidity the plant thrives in
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Light (LUX)
5000 – 30000
Lux
Ambient illuminance level at the plant's surface
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Light (PAR)
1000 – 2500
mmol/m²/s
Photosynthetically active radiation (PAR) intensity
water
Soil Moisture
30% – 80%
% volumetric
Water content in the growing medium
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Soil EC
400 – 2500
mS/cm
Electrical conductivity (nutrient concentration in soil water)
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Common Problems

Something wrong with your Rheum rhabarbarum? Select a symptom to diagnose and fix the issue.

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