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 7a 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 5°C and 20°C. (Show °F/in)
  • Space plants: 90 cm 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

31 Aug 24, Ron (USA - Zone 8b climate)
First: I lived in Montana most of my life, my rhubarb is 60 to 70 years old. Now I live in Shreveport LA. I'm looking for a rhubarb that will grow here. My plant in Montana I don't want to disturb being that old.
24 Jun 24, Nicala (USA - Zone 7a climate)
Hi, I am in zone 7a and I planted a rhubarb crown here in April and it doesn't look well. I think it was getting too much sun. I dug up the crown and put in a pot of compost. It is the middle of summer here and wondering if it will be okay in the pot until fall when I can plant it somewhere that gets less sun? Should I put the pot in a cool dark place?
10 Jun 24, Sherry (USA - Zone 10a climate)
I am in 10b. Which rhubarb can I grow here? Is it a perennial or annual in my zone?
15 Nov 23, Arlene Johnson (USA - Zone 8a climate)
I live in Dallas, TX and I would like to plant some rhubarb, cauliflower, cabbage, carrots, and beets. When do i plant these and can I plant them in a shaded part of the yard?
25 Nov 23, (Australia - temperate climate)
You will have to look up on this website, each different vegetable to see when to plant. Veg general need sun and lots of it.
29 Aug 23, Becky (USA - Zone 3b climate)
(i live in southwest MN in the summer and winter in Arkansas. )It’s September and I just bought some rhubarb to plant in zone 3b-4. Can I plant now in September and leave them do I need to stay and water them continually or should I take them back down south with me and take care of them and plant in the spring back in zone 3b-4. Thank you for your help.
06 Sep 23, Anonymous (USA - Zone 4a climate)
Check your climate zone time to plant and plant then.
18 Jun 23, Elaine Huneycutt (USA - Zone 7b climate)
What is the best Friday to grow in zone 7?
28 Mar 23, Vince (USA - Zone 9a climate)
Is there a strain of rhubarb that grows in zone 9a?
12 Jul 23, Deborah (USA - Zone 9a climate)
https://travis-tx.tamu.edu/about-2/horticulture/edible-gardens-for-austin/vegetable-gardening-in-austin/rhubarb-texas-style/
Showing 1 - 10 of 60 comments

Lindsay, my parents grew it in either 9b or 10a under the shade of a citrus tree. It never got as spectacular as those grown in cooler climates but they did get some fresh stalks for about 5 years.

- Paula

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