# How To Grow Rhubarb

- Link: https://lifeandwork.blog/rhubarb-plant-rh%d0%b5um-rhabarbarum/
- Published: 2026-10-24T02:12:24-05:00
- Author: Bert Swope

The scientific name for rhubarb is (Rheum rhabarbarum)

Rhubarb is one of the hardier crops, tolerant of cold, frost and wind. It is one
of those staple crops you can plant, fertilize, water and walk away from once it’s
established. Aesthetically, it adds color and texture to the garden. When planting
rhubarb remember that rhubarb leaves are poisonous and that only the stem can be
cooked and used.

Rhubarb is sometimes considered a fruit, because it is generally eaten with sweet
dishes. Technically, however, it’s a vegetable, appearing in vegetable patches and
plots around the country.

Rhubarb enjoys fertile, well-drained soil in full sun and dislikes having wet feet.
It doesn’t like sandy soils unless plenty of organic matter has been dug in. Cultivate
the soil by digging in composted manure and other compost before planting rhubarb,
then add a layer of garden soil. Rhubarb is also happy growing in large pots and
containers, making it a ideal portable crop. Fill pots and containers with Tui Vegetable
Mix. Rhubarb can also be grown from seed, by dividing existing clumps or purchasing
a plant from the garden center. Plants sown from seed take a few years to establish
themselves. Sow the rhubarb seeds in trays potting mix in spring, then once a few
sets of leaves appear, transfer the rhubarb seedlings into pots or plant in the 
garden to grow. Plant out 1m apart in the garden once seedlings are at least 10cm
tall and look robust. When dividing existing clumps of rhubarb the quickest way 
is to split pieces off the roots of an existing rhubarb plant in spring. To do this,
slice through the plant’s crown with a sharp spade or long knife. Plant the whole
section in the ground or in a pot (that is bigger than the offcut). Once the plant
begins to put down roots, new leaves will appear.

The rhubarb leaf stalk is used in pies, tarts, sauces, jams, jellies, puddings, 
and punch. Although categorized as a vegetable, rhubarb is used as a fruit because
its high acidity gives it a tart flavor. Only the stalks or petioles should be eaten,
because the leaves contain moderately poisonous oxalic acid.

## **Planting site**

Select a site that receives at least six hours of direct sun each day. Avoid shady
sites near trees and shrubs. Rhubarb will have a difficult time competing for sunlight,
water, and nutrients when planted near trees and shrubs

## **Life span**

Rhubarb is a perennial plant, meaning it will come back year after year on it’s 
own. Once you have an established plant or two, very little maintenance is reԛuired.
Most rhubarb plants have a 7-10 year life expectancy, although some plants will 
last even longer. Rhubarb is usually grown in a traditional vegetable garden. Because
of the large size of mature plants, it is generally not suitable for container gardening.

## **Hardiness of Rhubarb plant**

Rhubarb plants love cold weather. They thrive in areas where the ground freezes 
in the winter time. The plants generally do not grow well in warm climates. They
require well-drained, fertile soil and mostly full sun to reach their full potential.
Rhubarb plants can reach 4-5 feet or more in diameter. Because of their size and
longevity, careful consideration should be taken in choosing a suitable location
for your rhubarb plants(s). Rhubarb is a vegetable, not a fruit. It is commonly 
used as a fruit in sauces, pies, cookies, bars,

## **Caring for Rhubarb**

Mulch generously with a heavy layer of straw and cow manure to provide nutrients
for the plant, retain moisture, and discourage weeds.

 * Water your plant well. It needs sufficient moisture during the summer.
 * Remove seed stalks as soon as they appear.
 * After the first spring frost, apply a light sprinkling of a high-nitrogen fertilizer(
   25-3-3 or 10-6-when the ground is thawing or has just thawed so that the fertilizer
   will go into the ground and not harm the roots. See your local frost dates. Insects
   and diseases won’t bother rhubarb plants as long as you keep the plants weed-
   free.
 * Dig and split rhubarb roots every 3 to 4 years. Divide when plants are dormant
   in early spring (or fall). cakes, and famous dessert crisps and crumbles!
 * Do not harvest any stalks during the first growing season so that your plants
   can become established.
 * Harvest the stalks when they are 12 to 18 inches long. Usually, after 3 years,
   the harvest period runs 8 to 10 weeks long. If the stalks become thin, stop harvesting;
   this means the plant’s food reserves are low.
 * Grab the base of the stalk and pull it away from the plant with a gentle twist.
   If this doesn’t work, you can cut the stalk at the base. Be sure to discard of
   the leaves!
 * Always leave at least 2 stalks per plant to ensure continued production. You 
   may have a bountiful harvest for up to 20 years without having to replace your
   rhubarb plants.
 * After harvest time, the stems may die back. Just remove all plant debris. Once
   your ground freezes, it’s best to cover rhubarb with 2 to 4 inches of mulch, 
   preferably well-rotted compost; by adding nitrogen to the soil, you’re preparing
   the rhubarb plants for a good spring season.

## **Pests/Diseases**

 * Crown rot

## **Harvesting of Rhubarb**

The best time when to harvest rhubarb is when the stalks of the leaves reach at 
least 10 inches long. This will ensure that the plant has established itself well
enough for the year to be able to tolerate being harvested. You can take some of
the rhubarb stalks earlier than this, but limit your rhubarb harvest to just a few
stalks so that you do not kill the plant. Knowing when to harvest rhubarb also means
knowing when the season is over. While technically, you can keep harvesting rhubarb
until fall, keep in mind that your rhubarb plant needs to store energy for the winter.
Significantly slow or stop your rhubarb harvest in late June or early July so that
your rhubarb plant can build up energy stores to make it through the winter. Again,
it can be picked until the frost, but do so sparingly or you risk killing the plant.
Also, if your rhubarb, is newly planted, you will want to wait two years before 
taking a full rhubarb harvest from the plant. This will ensure the plant is sufficiently
established.

## **How To Harvest Rhubarb Plant.**

How to Harvest Rhubarb Harvesting rhubarb isn’t difficult either. There are two 
ways how to harvest rhubarb. One is to use a sharp knife or shears to cut off stalks
that are at least 10 inches or longer. The second is to gently pull the stalk while
gently leaning it to one side until the stalk breaks off from the plant. Never harvest
all the stalks off your rhubarb plant. After you cut the stalks from the plant, 
cut the leaves from the stalk and throw them in the compost bin. The leaves of the
rhubarb plant are poisonous and should never be eaten. That is all there is to harvesting
rhubarb. Now that you know when and how to harvest rhubarb, you can enjoy these 
tasty stalks in a wide variety of recipes.

## **Uses of Rhubarb**

 * Different varieties of rhubarb produce different shades of red to pink to greenish
   rhubarb stalks, however all are equally suitable for eating.
 * Most commonly rhubarb is cooked, stewed, or baked into pies, breads, muffins,
   cakes, and other scrumptious desserts. In many recipes, rhubarb is often combined
   with another fruit, such as raspberries, strawberries, blueberries or peaches.
   When combined with other fruits, rhubarb needs less actual sugar to take away
   the tartness.
 * Rhubarb is also commonly made into amazing rhubarb jams, rhubarb jellies, and
   punch and smoothie rhubarb drinks.
 * Rhubarb can be preserved by freezing rhubarb or by canning rhubarb.
 * Since rhubarb is actually a vegetable it is no surprise that many amazing rhubarb
   dinner recipes exist, of which rhubarb chili is my favorite! Other supper recipes
   for rhubarb include: Fish Rhubarb Dinners, Beef Rhubarb Dinners, Pork Rhubarb
   Dinners, Chicken Rhubarb Dinners, and Lamb Rhubarb Dinners.
 * Rhubarb can also be used to make rhubarb wine.
 * Rhubarb leaves can be used to make an natural insecticide.
 * Fresh picked rhubarb (leaves removed) will stay fresh in the refrigerator for
   3 – 5 days.
 * When cooking with rhubarb, it is best to use “non-reactive” cookware that does
   not react with the acid in the rhubarb. Teflon or stainless-steel cookware is
   preferable over aluminum and copper. Cooking rhubarb in aluminum or copper may
   cause “stains” on the pans.

Rhubarb is one of the only two vegetables that grows continues to grow, and propagate
unlike other vegetables that need to be sown each year. The other perennial vegetable
is asparagus.

Wild Rhubarb is not to be confused with garden varieties of rhubarb. Wild Rhubarb
is another name for Common burdock, a weed which looks somewhat similar to rhubarb
in appearance, but is not edible.

## **Cooking with Rhubarb**

Rhubarb is a sour-tasting plant, which can be combined with sugar to make delicious
recipes. Although this plant was originally grown for its medicinal properties, 
it has been a famous pie ingredient since the early 1900s. The first recorded recipes
for it date back to the 1600s in England and this is when sugar became widely available.

This ingredient is dipped into sugar and eaten raw in Sweden, parts of the UK and
some other countries. It makes an economical sweet snack. You can also use this 
fruit to make wine.

You can make a delicious dessert by cutting rhubarb stalks into one inch pieces 
and boiling them in water. Add half a cup or three ԛuarters of a cup of white sugar
for every pound of rhubarb. You will not need much water because there is a lot 
in the fruit itself. Add some nutmeg or cinnamon to taste and a tablespoon of lemon
juice or lime juice if you like.

When the stalks are soft, they are done. A slightly different cooking method is 
to simmer the fruit slowly without adding water and let it cook in its own juice
instead. You can add apples or strawberries while cooking it, to make it sweeter,
or add some ginger if you want to make jam.

## **Making Homemade Jam**

You can also add other kinds of fruits to the mixture to make jam. If you are using
ones, which do not contain much pectin, you might need to add some. Pectin is what
makes the jam set. For jam, use two ounces of fruit for every ounce of rhubarb. 
Choose from plums, apples, apricots, raspberries or strawberries. You will need 
to boil the mixture for ten minutes or more, until everything is soft.

## **Making Sauce Or Pie Filling**

Rhubarb sauce is another popular recipe and to make this you will need to simmer
the above mixture for about an hour or until it is smooth and you can pierce all
the fruit easily with a fork. You can keep the resulting sauce in the refrigerator
and eat it cold. Cook it for twenty minutes, instead of an hour, if you want to 
make a tart filling or pie filling. You can add strawberries to it if you want to
make strawberry and rhubarb pie.

## **Recipe For Rhubarb Cake**

### **Ingredients**

 1.  1 cup brown sugar
 2.  3/4 cup white sugar
 3.  1 1/2 cups finely chopped raw rhubarb
 4.  1 teaspoon vanilla extract
 5.  2 cups all-purpose flour
 6.  1 teaspoon baking soda
 7.  1 cup applesauce
 8.  1 egg
 9.  1/2 teaspoon ground cinnamon
 10. 1/2 cup butter
 11. 1/2 teaspoon salt

### Preparation Directions

Preheat the oven to 375 degrees F. Cream the butter with the brown sugar and half
a cup of the white sugar, then add the salt and egg. Stir in the vanilla extract,
flour, applesauce, and baking soda.

Stir in the fruit and pour the batter into a prepared nine by thirteen inch baking
pan. Sprinkle the cinnamon and remaining white sugar over the top. Bake the cake
for about half an hour. It is really moist so you will not need to frost it.

## **Harvesting of Rhubarb**

The best time when to harvest rhubarb is when the stalks of the leaves reach at 
least 10 inches long. This will ensure that the planet has established itself well
enough for the year to be able to tolerate being harvested. You can take some of
the rhubarb stalks earlier than this, but limit your rhubarb harvest to just a few
stalks so that you do not kill the plant. Knowing when to harvest rhubarb also means
knowing when the season is over. While technically, you can keep harvesting rhubarb
until fall, keep in mind that your rhubarb plant needs to store energy for the winter.
Significantly slow or stop your rhubarb harvest in late June or early July so that
your rhubarb plant can build up energy stores to make it through the winter. Again,
it can be picked until the frost, but do so sparingly or you risk killing the plant.
Also, if your rhubarb is newly planted, you will want to wait two years before taking
a full rhubarb harvest from the plant. This will ensure the plant is sufficiently
established.

## **How To Harvest Rhubarb Plant.**

How to Harvest Rhubarb harvesting rhubarb isn’t difficult either. There are two 
ways how to harvest rhubarb. One is to use a sharp knife or shears to cut off stalks
that are at least 10 inches or longer. The second is to gently pull the stalk while
gently leaning it to one side until the stalk breaks off from the plant. Never harvest
all the stalks off your rhubarb plant. After you cut the stalks from the plant, 
cut the leaves from the stalk and throw them in the compost bin. The leaves of the
rhubarb plant are poisonous and should never be eaten. That is all there is to harvesting
rhubarb. Now that you know when and how to harvest rhubarb, you can enjoy these 
tasty stalks in a wide variety of recipes.

Rhubarb: From Planting To Harvest

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