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The Daily Insight

Can you divide rhubarb in the fall

Author

David Ramirez

Published Apr 22, 2026

Rhubarb can be divided in either the Spring or the Fall. … At this time early growth is just beginning on the rhubarb plants, so you can easily see where best to divide the root mass, also known as the rhizomes. Some gardeners prefer the autumn for transplanting because the plants are dormant.

Can I split rhubarb in autumn?

It therefore makes sense to dig up rhubarb plants approximately every five to seven years, to split it and then to replant it. You can carry out this work in autumn, from the end of September to the middle of October or alternatively around late February or early March, as soon as the soil is free of frost.

When should I divide my rhubarb?

Early spring is the best time to divide rhubarb plants. Dig up plants as soon as the ground can be worked in spring. Divide each plant into sections with a large knife or spade. Each section should have at least 2 or 3 buds or shoots and a large section of the root system.

How do you transplant rhubarb in the fall?

Transplant each section into the garden with the buds 1 1/2 to 2 inches below the soil surface. Space plants 3 feet apart. Rhubarb also can be successfully transplanted in early fall. Fall planted rhubarb should be mulched with several inches of straw.

How do you prepare rhubarb for winter?

Just keep any mulch away from the crown of the plant, which can encourage rot. To prepare your plant for winter, after the first hard frost, cut back any remaining stalks and dress with a light 2 inch layer of compost, leaves, or hay to protect the roots through the winter.

When should I lift and move rhubarb?

Lift the dormant crown between autumn and early spring – ideally in November. Use a spade to divide the crown into several smaller sections, each with a portion of the rhizome (thickened root) and at least one growing point or bud. Sections from the outer part are better than the centre of old plants.

Can I move rhubarb in September?

When to Divide Rhubarb To renew your rhubarb plant, you will want to dig up the root and divide it. Dividing rhubarb plants should be accomplished in the early spring as soon as the soil warms up enough to work it and prior to the emergence of the tender new shoots.

How do you rejuvenate rhubarb?

Rejuvenate old rhubarb An old, neglected patch will often only throw up only weak, spindly stems due to overcrowding. If this looks familiar, the best thing is to dig up the whole root (called a ‘crown’) in winter and split it using a spade, making sure there are a few buds on each new piece.

Can you move rhubarb in winter?

In order to keep the plants healthy, rhubarb should be divided every five or six years during winter, when dormant. Each plant can be split into three or four separate crowns with a spade. … Dig out a hole slightly larger than the divided plants and place the crown in the hole with its roots facing downwards.

Do you cut back rhubarb for winter?

Prune back the rhubarb stalks to the ground in late fall or early winter after they begin to die back naturally from frost. Rhubarb may not die back completely if temperatures remain above 40 degrees Fahrenheit, but dead and damaged leaves can still be removed throughout winter, cutting them with shears or a knife.

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What fertilizer is best for rhubarb?

For the highest yields of rhubarb stems, fertilize your plants three times per year. Apply 2 to 3 inches of composted manure, compost or ½ cup of an all-purpose garden fertilizer, such as 10-10-10, around each plant in early spring (now). Once growth starts to occur, apply fertilizer again.

What should not be planted near rhubarb?

For example, rhubarb, sunflowers, and thistles are all susceptible to curculios, a weevil that bores into cylindrical stalks to lay its eggs, and should not be planted near one another.

How do you grow thick rhubarb stalks?

Rhubarb is a heavy feeder and needs to be planted in soil high in organic matter if you want to have large, thick rhubarb stalks. It helps the plant to cultivate around it, and to keep it mulched, weed-free, and well watered. The plant also likes a neutral pH soil.

What do you do with rhubarb in the fall?

After the first frost in late fall, any leftover stalks will naturally die and separate from the rhubarb crowns. To keep things neat, trim away the rhubarb stalks. With a knife, cut the stalk at the base and then dispose of the dead stalks since the leaves are poisonous to animals. Then, turn over the soil.

How do you keep rhubarb over winter?

Dig up the crowns in late fall and put them in a pot. Let them stay outside during at least two freeze periods. Then move the crowns inside where the crown will warm up. Put the pots in a dark area and cover the crowns with peat or sawdust.

What do you do with rhubarb in autumn?

Autumn: When the leaves die back naturally, simply cut back the old rhubarb stalks to leave the buds exposed. Apply a mulch of well-rotted manure around the crown of the plant; this will help to conserve moisture in the soil and keep the weeds down, as well as feeding the plants for the following growing season.

Is it better to cut or pull rhubarb?

Harvest rhubarb by cutting or gently pulling the stalk away from the plant. Do not harvest any stalks during the first growing season, so your plants can become established. … At this point, their harvest period should run 8 to 10 weeks or until the stalks become thin, which may be a sign that food reserves are low.

Why is my rhubarb floppy?

Do you have any suggestions how I can make my rhubarb plant more robust? It’s a bit floppy and spindly. … Spindly stalks are a sign of too little food, and often also indicate too little moisture (particularly if your rhubarb is competing with other deep-rooted plants such as a tree).

How deep do rhubarb roots go?

The roots of the plants typically spread over a 12-inch or greater area. Dig around the perimeter of the root system, pushing the spade in approximately 6 inches deep. You can lever the roots from the soil with the spade once the soil around the root system is loosened.

Where is the best place to plant rhubarb?

Where to plant rhubarb. Rhubarb needs an open, sunny or partially shaded site, and rich, moist soil. It will grow well in a sunny, open site, on a wide range of soils, as long as it has been well-prepared with plenty of manure or compost.

Do rhubarb plants get too old?

To renew your rhubarb, it will be necessary to divide the root. The root has become too old and tough to grow well. The time to divide the root will be as early in the spring as you can dig it up.

Is Miracle Grow good for rhubarb?

If your soil is heavy clay, you may want to consider planting rhubarb in raised beds filled with soil designed especially for that kind of growing environment, such as Miracle-Gro® Performance Organics® Raised Bed Mix. Water newly planted crowns, and keep soil moist throughout the growing season.

What kills rhubarb?

Mix a lawn weed killer according to the manufacturer’s instructions. Most lawn weed killers will also kill rhubarb. To find the right weed killer, look for a broadleaf weed killer that has been formulated for use on lawns and that contains Dimethylamine salt.

How many years does a rhubarb plant live?

Rhubarb plants are generally hardy and long-lived, with some varieties growing for 20 years or longer.

Does rhubarb need to be covered for frost?

Cold, below freezing temperatures may damage rhubarb and make it unfit to eat. It may be necessary to protect rhubarb plants if temperatures dip too low.

How do you make rhubarb grow better?

Rhubarb grows best in full sun, but will tolerate partial shade. Choose a site with soil that is well-draining and fertile. Good drainage is essential, as rhubarb will rot if kept too wet. Mix compost, rotted manure, or anything high in organic matter into the soil.

Is cow manure good for rhubarb?

Farm animal manure of any kind will feed rhubarb. The best manure for this is probably going to be cow manure. A well rotted load spread around the outside of the plant will allow nutrients to drain down to the roots. If the manure is rather fresh, then the best time to apply it will be the Autumn.

Is chicken manure good for rhubarb?

Rhubarb is normally one garden plant you shouldn’t have to fuss with, but it does have a few requirements. My bet is the plant could use a good dose of fertilizer now and a top dressing of chicken manure in the fall. Sprinkle a handful of a 10-10-10 fertilizer in a circle out about a foot from the bunch of leaves.

How many rhubarb plants do I need?

At maturity, a rhubarb plant gets to be about 3 feet in diameter, so plant them 3 to 4 feet apart in a 3- or 4-foot-wide bed. Four to six plants will provide plenty of stalks for most families. Harvest sparingly, starting in the second year.

Why are my rhubarb stalks so short?

Newly planted rhubarb will initially produce small, spindly stalks during its 2 year establishment period. The stalks of large, old plants may be small and spindly because of overcrowding. Poor plant vigor due to poor cultural practices is another possibility. … Early spring is the best time to divide rhubarb plants.

Can I pick rhubarb in October?

If possible, it’s best to grow rhubarb in full sun, but is fairly tolerant of partial shade. They will remain in the same position for up to 10 years and the soil immediately surrounding the plant cannot be dug, so position it with this in mind.