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Propagation: Rhubarb is usually propagated by planting "crowns" (divisions of the roots that contain buds for new plants). If you neighbor doesn't have some extra plants to share, crowns are easy to obtain at nurseries, garden centers, or through mail order (or online) catalogs. Two to three plants will usually provide plenty of stalks for the needs of an average family.
Where to plant: If you take the time to prepare your planting site ahead of time, established plants will reward you handsomely for possibly decades into the future. Because rhubarb is a long-lived perennial, it's best to set aside a large, sunny, out-of-the-way spot in the garden where it will be free to grow without interfering with annual vegetable crops. Rhubarb is a heavy feeder and grows best when planted in fertile, well-drained soil with a pH of 6.0-6.8. Work the soil to a depth of 24 inches before setting in the crowns so roots have plenty of room to expand.
How to plant: Plant rhubarb in early spring. For each crown, dig a hole 2 feet deep and 2 feet wide. Space each hole 3 feet apart in all directions. (Some varieties are larger and may need even more space). Back-fill the hole to a depth of 12 inches with equal part soil and compost or well-rotted manure, plus 1/3 cup of 10-10-10- fertilizer.
Place one crown in each hole so that the plant buds sit 3-4 inches below the soil surface. Tamp the soil firmly around the roots, and fill the remainder of the hole with equal parts compost and topsoil. Mulch around each plant to conserve moisture and protect roots.
Feeding: Work a balanced (10-10-10) fertilizer into the top few inches of soil around the shoots at the first sign of growth each spring.
Division: Older plants can become crowded and should be divided every 4 to 5 years or when they start to exhibit spindly growth. This is best done in the early spring. Use a sharp spade to cut down through the center of the plant. Cut the roots of the removed portion into several parts, each of which should have one to three buds. Plant them as you would crowns.
Harvesting: Rhubarb plants are usually mature enough for harvesting a few stalks the second year after planting. Stalks are ready to pull when they are 12 to 18 inches long. Young stalks with the deepest red color usually have the best flavor, although some varieties produce only green-colored stalks. Harvest the stalks by twisting them off near the base (cut stems bleed and encourage disease). Rhubarb leaves should never be harvested for food as they contain high amounts of oxalic acid, which can be poisonous.
To maximize production, remove seed spikes as soon as they form to keep them from diverting nutrients from the stalks. Stop harvesting in early July to give plants time to build up food stores for next season.
Very interesting and informative...thanks so much
This guide is about rhubarb plants turning yellow. Rhubarb likes to grow with good drainage and cool temperatures.
This guide is about transplanting rhubarb. For a successful crop, learn the best time of year and method to move rhubarb plants.
This is a guide about harvesting rhubarb. Every fruit and vegetable has an optimal time to harvest it for best flavor.
Ask a QuestionHere are the questions asked by community members. Read on to see the answers provided by the ThriftyFun community or ask a new question.
My husband wants to plant more rhubarb this year. However the major plant companies we usually deal with (Park Seed, Burpee, etc.) are out of the crowns. I can find rhubarb seeds many places, but not the crowns. Can anyone help me out?
By Mary W.
Go to freecycle.org and sign up with your Yahoo. account. This is a place where you can post what you are looking for (rhubarb crowns) or post any thing you want to give away. Absolutely free-nothing is ever sold or bought. I have gotten tons of plants for my garden on Freecycle. Every state in the Union has freecycle.org sites. good luck.
I need some advice regarding rhubarb. Firstly my stalks are well over 10 inches but still green, should they be red to eat? Secondly one of my bushes is seeding on top. Should I pull this bush out or just cut the top off. Thanks for your answers in advance.
I've never grown rhubarb (it's my understanding that it doesn't do well in this area), but my relatives up north have it. Dad grew up around it, and I remember him telling me that part of the plant is toxic. Here is a link to Dave's Garden -- it's a great resource! I typed in "rhubarb," and this is what came up. Some parts of the site are free, but to access other parts you have to be a subscribing member.
Some strains of rhubarb does not get red. Canadian is a red type, and does not require as much sugar. It would be red as soon as it pops out of the ground in the spring. If it is not red at the stage you mentioned it will not get red as it is ripe right from the start. As for the seed pods you cut them off to allow the other stalks to grow. Rhubarb never gets to old, it lasts for years and years. The roots should be broken up every few years and replanted to make more plants. Dig them up and cut them up with a shovel. Rhubarb grows best in cold areas like in the north. Does not grow well south of Mason Dixon line.
Sounds like you may have the old variety called "Victoria" which is green, not red. It is prone to trying to bloom and set seed. Just cut off the seed stalk. By the way, rhubarb is a perennial plant that will die back to the ground each winter, unlike a bush that will have branches that remain from year to year.
Sounds like you are south of the Mason-Dixon line if your rhubarb is that large already in February. If you just put it in last year, pick lightly this year because it is still getting established. Rhubarb is a heavy feeder and likes to be mulched so the soil stays moist.
Our rhubarb plant has "gone to seed"; do we cut this off or leave it as it is? The rhubarb was growing fine then all of a sudden it grew this huge globe shaped head on one of the stalks. It burst open and, hey presto, seeds.
By Ruth G
It is best to prune that seed stalk off and then your rhubarb plant will produce more edible stalks during the season.
Your rhubarb plant is getting tired and/or overgrown, which is why it's setting a seed head so early. You could divide your clump, giving some away to a friend or creating a second clump for yourself. Be sure to add a generous shovel of compost in the new hole for the split and toss a big shovelful in the old hole when you replant your remaining clump.
Or, if you can't get to that this season, just cut the seed heads off as soon as you see them. You can compost it and the leaves and root from the fruit you use by simply tucking them back under the plant. This will help hold in moisture as well as providing nutrients back to the plant. You can't go wrong by side dressing with compost either. Good luck!
Something is eating the leaves on my rhubarb, but I can't determine what it is.
Hardiness Zone: 5a
By Tall Boy from Louisville, KY
Call your county extension office & ask for info about your Rhubarb & gardening, good luck.
The only thing that eats my rhubarb leaves are slugs!
Today is July 23, and just yesterday I was given some rhubarb to transplant, I have planted it in full sun, and have spaced the root out some. My question is today, just 1 day later, my rhubarb is limp looking, and I'm not sure if it is going to make it. Can you tell me if there is anything that I can do to keep it alive and growing or should I just cut down the stalk's that I do have and hope for more next year?
Hardiness Zone: 5a
Tina S. from Bloomington, Illinois
Keep it nice and moist, watering it thoroughly every other day. Rhubarbs have heavy leaves, and it's asking a lot for a transplant to hold up as if everything's a-ok. Just pamper it this year, and it'll come back better than ever next year. Don't give up- they're hardy little boogers, and you'll be cursing its size in no time!
I agree with Beth, but I would like to add a tip my grandfather gave me that still works today, water it with a bottle of fizzy lemonade for the first few days after transplanting, not sure how it works, but it also works for houseplants in need of TLC, and even cut flowers!
After that water it with the rinse out water from your used cartons of milk. The best, cheapest, and most effective fertilizer I have ever used!
Most plants go 'limp' for a day or two after transplanting it's a shock to their systems. As said, they should pick up. My son and his wife moved into a house they had just bought around two years ago and there was a bit of a vegie garden up the back which had rhubarb and silver beet growing in it.
Well, being busy people, work, study, a baby girl, they virtually have neglected that vegie patch for 2 years and the rhubarb and silver beet are still thriving, getting along nicely on the their own.
What's causing my rhubarb to be stringy? What can I add to my rhubarb's soil to produce a more tender plant? Thanks.
Hardiness Zone: 4a
By countessj from Anchorage, AK
Maybe you're letting it get to old before you cut it.
I believe that is the nature of the stem.
Rhubarb does have a lot of strings naturally. But as your plants get older, you may find that the stalks are thinner and stringier. This is a sign the plant needs to be split into smaller plants and given more room. You need to do this every two or three years or so.
Also, rhubarb is a heavy feeder. I surround mine with 2 or 3 inches of organic compost in the spring when it first sprouts and it feeds it all summer long.
I planted a rhubarb plant last year and did very little in terms of pulling stalks so as to not ruin the crown. This year, the left over leaves were soggy. I pulled them off, very easily. Now I have "dirt", but can feel maybe the crown. Should I have pulled the soggy leaves? When will I see if the rhubarb will bloom?
How do you plant and maintain Rhubarb? What kind of soil do they like? Sun or shade?
Hardiness Zone: 5b
Carol from Nebraska (Southern)
You can start rhubarb from seed, from potted plants, or from root divisions that contain one or more buds.
When you plant Rhubarb, plant it in full sun after you work the soil with either compost or a good organic fertilizer. It will come back year after year, especially if you work into the soil, compost or fertilizer every spring. When harvesting the Rhubarb, take the very colorful leaves off the stalk and lay then under the plant. This is a great way to keep feeding the plant all summer.
Ragteller is right, full sun, lots of compost - any cow manure in in southern Nebraska? Use that after the crop is finished in the fall. I cover my patch with it & then leaves on top of that in in fall.
Don't use the rhubarb the first year after planting new plants or transplants, allow to establish. ALWAYS put the cut leaves back around the plants after PULLING up the stock from the ground. Some think you should cut the stock off from the plant. Pull it up from the ground, only one stock at a time, and don't pull all from one plant. It will come away from the plant very easily, should look like a stock of celery (curved) but a pale pink...
Have had ours for over 30 years now.
D. in N. S., Canada
According to Ellen's response...the rhubarb will never come up. The hole, yes, should be about 1.5 feet deep but the crown should be planted so that it will only be between 1 and 4 inches below the surface of the soil. I prefer 1 inch.
When dividing a rhubarb the roots will be quite long...that even a 1.5 foot hole might not be deep enough. I remember my grandpa digging out some of his rhubarb plant for me and he placed the pieces in a large garbage bag to transport them here.
Do you plant the seed part of the rhubarb to make new plants, or is that bad?
By V.B. Jones
It is best just to take a spade and remove part of the existing plant and plant it and water regularly. It will get established quite easily but do not harvest any stalks from the new plant until the following year.
I have just transplanted some rhubarb and I want to plant cucumbers in the spot where it was. I just want to make sure the rhubarb won't grow back. What sound I do?
Hardiness Zone: 5b
By SummerRay from Saint Johnsville, NY
Rhubarb is a perennial which means it will keep coming back every year. To get rid of it you must dig up the root system. It is a woody type root and tends to break apart easily so be sure to get it all! Rhubarb sends out runners underground and can spread.