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)

Your comments and tips

05 May 20, Rossana Parker (Canada - Zone 6b Temperate Warm Summer climate)
Can grow rhubarb in a big pot? And which area in the garden can I place it? Thank you.
08 Jun 20, Anonymous (Australia - sub-tropical climate)
It grows fine in a big pot and is happy in semi-shared areas.
03 May 20, Pat Collins (Australia - temperate climate)
I belong to a community garden and we have been using lots of fresh horse manure to feed our rhubarb and other plants. Last year our rhubarb seemed to get very weak and then developed root rot. Would this be due to the manure being too acid? our soil is quite clayey.
05 May 20, Anon (Australia - sub-tropical climate)
Manures need to break down into compost before applying to the soil and then mixed into the soil. Manures are a great soil condition builder. Puts fibre back into the soil and opens it up to heat, light, water draining easily etc. Or you could put the fresh manure in a big tub/bin/drum and top up with water, after a week or two you could drain off the liquid and apply that. Stir the water/manure while it is soaking. Better to apply compost or broken down manures.
28 Apr 20, Kristen (USA - Zone 6a climate)
Is it too late to plant rhubarb from plants this year in my zone? The chart above says March. Or should I wait until next year? Thank you!
27 Apr 20, Chris Calvert (New Zealand - temperate climate)
Our plants were from an earlier patch that was at least 50 years old. We have had them for about 3 years and are harvesting them almost all year. They slow down a bit in winter but we still get feeds off them then. They now get tons of manure and pellets with mulch over the coldest part of the year and they are grown in a substantial raised bed with frequent watering (not sure the watering is required as frequently but we do it when the leaves wilt a bit). The raised garden is still settling so I am hoping the watering can slow down a bit as the soil compacts and retains more of the water.
23 Apr 20, Michael G (Australia - temperate climate)
I am in Adelaide and have just seeded rhubarb. Am I too early or will they turn into crowns to plant in spring?
08 Apr 20, Anon (Australia - temperate climate)
What about growing rhubarb in the San Francisco Bay Area - Oakland - South/across the bay from SF?
23 Mar 20, gary ellard (Australia - temperate climate)
have been growing rhubarb in a 2mtr square wicking bed. Have shreddard old horse manure and placed it on top of the bed as a mulch. Before i did this , i was cultivating stalks regularly but then the leaves turned red and i lost the lot. I was led to believe rhubarb loves manure of horse. Have i done any thing wrong?
24 Mar 20, Chris (Australia - sub-tropical climate)
It might be too acid. Have you checked the soil pH?
Showing 141 - 150 of 635 comments

Is it normal for rhubarb roots to grow on the surface. I have two roots from a 2 year old plant growing along the top of the ground. Could it be looking for more water. Thank you

- Cheryl

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This planting guide is a general reference intended for home gardeners. We recommend that you take into account your local conditions in making planting decisions. Gardenate is not a farming or commercial advisory service. For specific advice, please contact your local plant suppliers, gardening groups, or agricultural department. The information on this site is presented in good faith, but we take no responsibility as to the accuracy of the information provided.
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