Growing Rhubarb

Rheum rhabarbarum : Polygonaceae / the dock family

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

(Best months for growing Rhubarb in New Zealand - cool/mountain 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

30 May 17, Steve (Australia - temperate climate)
Cheap potting mix is fine. Just make sure to add some slow release fertilizer and compost in it. I don't waste my money on expensive rubbish that you can make yourself for half the price. As with all potting soils you must continue to feed it. The only difference between cheap and expensive potting soil is 6 months of a plant living in it then the expensive one has the same quality as the cheap one
26 May 17, Brenda (Australia - temperate climate)
My rhubarb has been in about a year and I'm dying to harvest!!! Is it too soon? The colour is good and quite thick.
29 May 17, Giovanni (Australia - temperate climate)
If the plants are doing well and have a number of good sized stalks you could very carefully take a few. Push the stalk down towards the ground and give it a careful twist to separate it from the plant. Do this carefully as you don't want to damage the crown or pull it out of the ground. New roots will be subject to damage if you are not careful. Enjoy!
02 Jun 17, Brenda (Australia - temperate climate)
Thank you Giovanni. Done as you suggested and already cooked. Can see more shoots coming through. Yummy!!!!
23 May 17, Henry Howard (Australia - temperate climate)
I have just planted out two rhubarb plants in new veggie garden.......pretty good soil with small amount of clay. In about four weeks they have developed quickly into sturdy plants, good thick stems and huge leaves. As we are going into winter (Gippsland, Victoria) I want to cut all the stalks back to within a few cms of the roots thus allowing for new stems, hopefully ready to cook, in about three months. Good idea or not?
24 May 17, Sean (Australia - temperate climate)
I live in the Latrobe Valley (Gippsland) and we usually leave the stalks for the winter. If you get severe frosts or a bit of snow you could do what you have suggested and then cover the plants with a good layer of straw or hay for insulation.
17 May 17, +david richardson (Australia - temperate climate)
Hi I have a single small plant which is producing multiple stems but they are very thin and as a result not really usable. the plant is on a balcony which gets sun in the morning, this is melbourne! is there something I can do to create more growth of usable stems? many thanks
17 May 17, Jack (Australia - sub-tropical climate)
Rhubarb responds to heavy doses of old manure, blood & bone, etc. It also likes plenty of water which is often a challenge for plants grown in tubs. Your aspect is fine and living in Melbourne is not a handicap! Using good potting mix, not cheap stuff, is a must when growing plants in tubs as they need to get everything out of the amount of soil that is in the tub. If it is not practical to re pot it just make a few holes down beside the roots with a stick and pour some blood & bone down the hole before closing it over. Keep the rhubarb mulched and moist and bury all of your kitchen scraps under the mulch. This will rot down and provide extra nutrients.
06 May 17, Kevin Spencer (Australia - temperate climate)
Rhubarb sold inshops has long stems. Mine has shorter, thicker stems and large leaves. Do growers place boards either side of plants to make the stems grow longer?
07 May 17, Lily Martin (Australia - temperate climate)
I believe they grow rhubarb in very little light which makes the stems long.
Showing 301 - 310 of 635 comments

you really are better off putting them in a raised garden bed with mixed clean top soil, lots of compost, peat moss, blood meal, and a slow release fertilizer. Rhubarb get very large and can live for many years and their root systems can get quite large, keeping them in pots will restrict their growth and you will have to water more often and continually use fertilizer more often then them being in the ground.

- Laura Ellington

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