Hi, I'm Julia "The Gardening Girl".

I'll Help You Make Your Garden Better!

Get my free guide today "10 Proven Steps for a Successful Vegetable Garden"

How to Force Rhubarb (Plus Bonus Recipe)

How to Force Rhubarb

I have recently made the most amazing discovery and I’m so excited to share it with you!

Rhubarb has been growing in my garden for over 5 years. I have added several plants since then and have about 7 plants in total. Every year, I’ve had to wait until well into May, in order to harvest it.

However, I’ve found an easy way to speed up its growth. This method produces rhubarb that is a delight to the senses and it’s flavour is sweeter and more tasty than traditionally grown rhubarb.

How would you like to get a head start on your rhubarb plants?

Here’s what I’ve done in order to speed up my rhubarb’s growth. The result is a sweet and tender harvest, unlike any sold in stores or farmers markets. By following this approach, you too will be able to harvest a surprising and delightful rhubarb, that will make you the envy of all your gardening friends and neighbours.

[Content Upgrade] How to Force Rhubarb (Plus Bonus Recipe)

Exclusive Blog Post PDF

Rhubarb tastes good on its own, but also tastes great with strawberries! Complete the form to download my Rhubarb Cake Recipe.

The concept of forcing rhubarb has been practiced by gardeners in Britain since the late 1800’s. At that time, rhubarb was forced to produce fresh fruit at a time of year when fresh fruit was hard to come by. Dark sheds were built, which restricted all outside light, in order to grow rhubarb. The warm and blackened-out conditions of the sheds, allowed rhubarb’s rhizomes to quickly produce long, tender stalks.

The practice of forcing rhubarb increased during the first and second world wars, as more rhubarb sheds were erected and the demand for rhubarb increased. During that time, shipping became very difficult, since many ships were sunk. As a result, fresh fruit was unable to reach the country from abroad.

Today, the practice of rhubarb forcing continues in Britain and other parts of Europe. The best part is you don’t need to have a blackened-out shed in order to force your own rhubarb. All you need is a large woven basket, large clay pot, rhubarb forcer or any other dark vessel that can be placed over top of the rhubarb. If your pot has a drainage hole on top, cover it with a large stone or dark material, to block out any and all light.

When light is excluded from the rhubarb, it accelerates its growth as it reaches in search for light. As a result, photosynthesis does not take place, causing the stalks to be a bright crimson colour and a delicate sweet flavour, which doesn’t contain any of the bitterness that photosynthesis creates, and which is prevalent with normally grown rhubarb.

How to Force Rhubarb - Before Covering

Rhubarb before covering

How to Force Rhubarb - About to Cover

About to cover the Rhubarb

How to Force Rhubarb - Covered

Rhubarb Covered

Here’s What You Need to Force Your Own Rhubarb:


  • Wicker basket, large black plastic pot (for flowers), large clay pot, decorative rhubarb forcer or any large container that can be placed over the rhubarb crown, which will completely prevent any light from reaching the rhubarb.
  • Large stone, brick or any other material to cover the drainage hole, which will be at the top of the container (or in this case, the underside flipped upside-down)
  • Rhubarb Forcing After 5 Days

    Rhubarb Forcing After 5 Days

  • Small hand spade


  1. Using your spade, pull back any leaves, weeds, or excess dirt, which has accumulated around the rhubarb crown.
  2. Cover the rhubarb crown with a large pot, wicker basket, clay pot or any other large container.
  3. Cover any drainage holes with a large stone, brick or even black plastic sheet, in order to exclude all light from the rhubarb.
  4. Begin checking your rhubarb in 2 weeks and start harvesting its stems when they have reached your desired length.
  5. Be sure to pull each stem out from the crown when harvesting. It takes a bit of a tug, but they will come out with a pop. Do not cut them, or you may encourage disease to enter through the cut portion.
  6. Replace the container and allow the rhubarb to continue to grow.
  7. Be sure to leave a few stems on the plant, rather than harvest all of them. The remaining stems will feed the rhubarb’s roots and replenish its energy. At this point, remove the container and let the rest of the plant grow. Do not continue harvesting for the year.

Note: Do not force your rhubarb plant, for a second year in a row. Forcing weakens the plant’s roots. They would need at least a year’s rest to recover.

Ideally, it is best to have several rhubarb plants, which would allow you rotate them through a yearly cycle.

One other word of caution!

  • Be sure to remove all rhubarb leaves before consuming. They are poisonous and unsafe for human consumption. The stem part of the rhubarb is the only edible portion of the rhubarb and it is actually quite good for your health. Simply cut off the leaves when harvesting and throw them into your compost bin.

I hope you give rhubarb forcing a try! I’m sure you will the experience the same thrill as I did, when I discovered gorgeous crimson rhubarb stalks, growing mysteriously under a dark container.

How to Force Rhubarb - 4 Days Later

Rhubarb 4 Days Later

How to Force Rhubarb - Rhubarb Covered

Rhubarb has outgrown the smaller cover and is now under a larger one.

Do you force your rhubarb? What’s your favourite way to eat it?

I’d love to hear about your experience in the comments section below. Alternatively, please send me an email.

Happy Gardening!


  1. pj772009

    Ha! I had actually read an article about the British rhubarb sheds few years ago but never thought to take it one step further. As a by-the-way, why do we combine rhubarb and strawberries when they’re harvested at different times? I never could figure that out. 😉

  2. Donna

    Hi I live in Iowa, just wondering do we leave the container on all year long ,

    • Julia Dimakos

      Hi Donna, no just while you are forcing it. This may take 2 to 3 weeks. Remove it when you begin harvesting stalks. I recommend doing this for only 1 plant at a time, as it will weaken it. Next year, don’t force the same plant again. Give it a year to recover.

      • Donna Long

        Thank very much I have 6 so I cover 3 this spring, thank you again


Submit a Comment

Your email address will not be published. Required fields are marked *

Julia Dimakos

Hi, I'm Julia from Mono, Ontario, Canada. I began my gardening adventure after having children. Since then, my interest grew into a passion. I love growing vegetables, herbs, flowers, fruit and medicinal herbs. I'm here to show you that growing your own food is not difficult and in fact can be simple.