How to Freeze Rhubarb Guide.
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How to Freeze Rhubarb

This step by step guide with pictures shows how to freeze rhubarb from the home garden. Frozen rhubarb is the perfect addition to berries in pies, tarts and crumbles.

Rhubarb in the Home Garden

Rhubarb is a hardy plant and easy to grow from seed in the home garden. Most varieties will need to grow one year before harvest however the stalks are then harvested over a long period of time from spring through to fall (autumn).

The stalks are the only edible part of the plant as the leaves are poisonous to humans and animals. For more information on growing rhubarb see this guide to Growing Rhubarb from Seed.

Freezing Rhubarb

It is best to freeze rhubarb in bite sized pieces and in the amounts required by your favorite recipe. This will make thawing the right amount for your recipe easier. This recipe for Rhubarb and Walnut Cobbler is perfect for using frozen rhubarb.

Do you need to blanch rhubarb prior to freezing?

It is always best to blanch the rhubarb for one minute prior to freezing as this will prevent freezer burn and extend the storage life.

How long can rhubarb stay frozen?

It is best to use frozen rhubarb within the first 6 months as the quality will be the highest during this time. However frozen rhubarb is safe to eat for up to 12 months.

What is the best way to thaw frozen rhubarb?

The best way to thaw frozen rhubarb is overnight in the fridge however if you forget simply use the defrost mode on your microwave.

Tools and Materials Needed

  • Rhubarb Stems
  • Measuring Jug – This 32 ounce Anchor Hocking Measuring Jug is perfect for measuring larger amounts and is highly rated on Amazon. (Paid link)
  • Large Saucepan or Wide Deep Fry Pan
  • Slotted Spoon
  • Large Bowl of Ice Water
  • Airtight Container or Freezer Bag – These highly rated pack of 8 by 32 ounce twist top Freezer Containers are great value and the perfect size for freezing fruit for pies. (Paid link)
  • Label – Reusable Storage Labels are easy to use and better for the environment. (Paid link)


How to freeze rhubarb from the home garden.

  1. Prepare the Stems

    Cut the stems 1 inch from the base of the plant then cut off the top leaves. Wash then drain the rhubarb stems.

  2. Cut and Measure

    Cut the stems into bite sized pieces then measure the required amount for your recipe using the measuring jug.
    Cutting the rhubarb stem on a chopping board with pieces in a measuring jug.

  3. Blanch

    Bring a saucepan of water to the boil. Place the rhubarb in the boiling water for one minute.
    Rhubarb pieces blanching in boiling water.

  4. Stop the Cooking Process

    Place a few pieces of ice in a bowl of cold water. Using the slotted spoon transfer the rhubarb to the ice water to stop the cooking process.
    Rhubarb pieces in a bowl of ice water to stop the cooking process.

  5. Label and Freeze

    Drain the ice water well then place the rhubarb in an airtight freezer container or freezer bag leaving ½ inch head space in the container. Label with the contents, the date frozen and the amount in the container. Freeze immediately.
    Blanched rhubarb pieces in a freezer container.


Rhubarb which is showing signs of freezer burn is still safe to eat however the texture may not be appealing. If unsure simply toss into your compost pile so it doesn’t go to waste.

Do you have more food from your garden to freeze? Try this guide to Food Preservation or these guides to freezing Snow Peas, Onions or Kale.

The home should be your sanctuary and there is nothing more relaxing than creating your own home wares or growing your own food. Find out more from this Homesteading guide.

To Print or Save this guide on how to freeze rhubarb, find the printer friendly PDF version below.

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