Plant Care Garden Rhubarb

Garden Rhubarb

About Garden Rhubarb

This perennial herb has leaves in basal clumps, large, with thick, reddish petioles, and large, heart-shaped blades. Flowers are small, in a dense, elongated, terminal cluster, with 3-winged fruit.


Rheum rhabarbarum

How to care for Garden Rhubarb


How often to water your Garden Rhubarb

Water needs for Garden Rhubarb
0.5 cups
every 9

Garden Rhubarb needs 0.5 cups of water every 9 when it doesn’t get direct sunlight and is potted in a 5" pot.

Use our water calculator to personalize watering recommendations to your environment or download Greg for more advanced recommendations for all of your plants.

Calculate water needs of Garden Rhubarb

Water 0.5 cups every

Does your plant get direct sunlight?

Select the pot size


Check the growing potential in your area

A plant's growing potential is determined from its location, the time of year, and current local weather.

Select a city to check sunlight intensity

Finding light for Garden Rhubarb in your home

Light needs and placement for plant Garden Rhubarb: 1ft from a window
1ft or less from
a window

Garden Rhubarb love being close to bright, sunny windows 😎.

Place it less than 1ft from a south-facing window to maximize the potential for growth.

Garden Rhubarb does not tolerate low-light 🚫.

Select your region to see how the current weather in your area affects the placement of Garden Rhubarb in your home 🏡.


How to fertilize Garden Rhubarb

Nutrient, fertilizer, and repotting needs for Garden Rhubarb: repot after 2X growth

Most potting soils come with ample nutrients which plants use to produce new growth.

By the time your plant has depleted the nutrients in its soil it’s likely grown enough to need a larger pot anyway.

To replenish this plant's nutrients, repot your Garden Rhubarb after it doubles in size or once a year—whichever comes first.

Water Needs
Sunlight Needs

Care Summary for Garden Rhubarb

Garden Rhubarb

Garden Rhubarb

Greg recommends:


0.5 cups every 9 days


< 1ft from a window


Repot after 2x growth

Based on the 4” pot your plant is in, and that it doesn’t get direct sunlight.

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