Growing Rhubarb

Rheum rhabarbarum : Polygonaceae / the dock family

Jan F M A M J J A S O N Dec
      P                

(Best months for growing Rhubarb in USA - Zone 5a regions)

  • P = Plant crowns
  • Easy to grow. Plant pieces of rhizome or roots 8 - 10 cm (3 - 4 in.) deep. Best planted at soil temperatures between 41°F and 68°F. (Show °C/cm)
  • Space plants: 35 inches apart
  • Harvest in approximately 1 years. You will have a stronger plant if you leave it for about a year before using..
  • Compatible with (can grow beside): Brassicas (Cabbage, Broccoli, Cauliflower, etc)
  • Young rhubarb
  • Rhubarb Plant

Rhubarb is easy to grow in cool climates and is a perennial. Rhubarb can be left in the ground and will return a crop for many years, at least 10 to 15 years (We have one that is more than 20 yrs old). Rhubarb is quite a hardy crop but the crown will rot if in heavy wet clay soils. It can cope with dry periods. Plant in good soil and remove as many weeds as possible. Do not disturb rhubarb roots when cultivating round the plant. Better in cooler climates, but can be grown in shady areas of warm climates. You can lift and divide rhubarb to make more plants . It is best to do this when the plant is dormant ( or at least less actively growing) in winter or late autumn. It is best to wait until a plant is about 5 years old before dividing the crown but it can be moved at any age. Some of the root structure will be damaged when lifting it, so stalk production will not be so good for a few months. If you have mild winters and your rhubarb is still producing new stalks, you can continue to pick it. Although rhubarb is used in desserts and jams, it is considered a vegetable because the stalks are used not the fruit.

NB Do not eat the leaves or roots as they contain oxalic acid which is poisonous. They should not be fed to poultry or stock either.

Remove flower stalks as they appear as the plant will stop producing leaf stalks when flowering.

Rhubarb can be 'forced' by covering dormant crowns with clay pots or a cloche in early spring.

Culinary hints - cooking and eating Rhubarb

Pick stems about the thickness of your finger. Large stems will have tough 'strings' down the length of them.
Use in pies, crumbles, fools and jams. Rhubarb goes well with orange.
Will usually need sweetener.

Your comments and tips

05 Mar 23, Steve Gollis (USA - Zone 12b climate)
Any varieties that will grow in Zone 12? I wouldn't mind trying one of the Zone 8 varieties, but I think I would have to harvest it the first year because it looks like it won't be happy without some cold. Any advice will be helpful, I miss my rhubarb dishes and it's like pulling teeth to get the stores to stock it! Thanks!
06 Mar 23, Anonymous (USA - Zone 12b climate)
They don't recommend planting it in your climate zone.
19 Feb 23, Rebecca (USA - Zone 8b climate)
Advice on planting Victoria rhubarb in pots.
20 Feb 23, Anonymous (USA - Zone 8b climate)
Read the notes here or google how to grow it.
30 Jan 23, phil coppola (USA - Zone 7b climate)
What variety of rhubarb is best to grow as a perennial in zone 7. I tried rhubarb about 45 years ago and was unsuccessful. Reason being that the temperature in the winter wasn't cold enough in the winter and if you were to try to grow it you were required to expose the bulb (?roots) to a freeze. Are there new varieties that don't require that. Please advise.
27 Jun 22, Meagan Messinbird (USA - Zone 4b climate)
Where can I buy rhubarb root to plant ?
24 Feb 23, Trish (USA - Zone 7b climate)
Tractor supply has it , bags are $ 4.89.
25 Jun 22, Deborah Winquest (USA - Zone 7b climate)
I live in south central Tennessee and want to grow rhubarb. Can I do so as a perennial or do I have to treat it as an annual? And where is the best place to plant the crowns?
02 Sep 22, Tiffles (USA - Zone 8a climate)
From what I read, give it a good spot for it to get sun during fall-spring and protect it from heat(shade it) during summer. It's delicate to heat. I'm going to try planting mine on north fence and then planting sunflowers for shade but giving it good ventilation in between. We made need shade cloth.
13 Jun 22, Catt Mandu (USA - Zone 8a climate)
I am growing Victoria rhubarb in three-gallon nursery pots in North Georgia. I started the plants (small roots) this spring in a sunny area during cool weather, but moved them into partial to full shade as the heat increased. The soil in the pots is a loamy sand mixed half and half with compost. I water daily, about a quart of water per plant. I top dress each pot with about a teaspoon of granular 13-13-13 fertilizer whenever I notice growth slowing down, roughly once a month.. So far, it has handled temperatures up to 95 F with no problems. My plants are huge, about 3.5 feet across with long thick stems. One thing I have noticed! is the stems are mostly green, not red, this could be due to the shade, or possibly heat. They still taste great in strawberry rhubarb pie, though I'm harvesting very little this first year, hoping for the plants being larger and stronger next year. As a precaution against disease, any leaves and stems that are starting to yellow with age I pull off of the plant and compost them.
Showing 1 - 10 of 47 comments

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