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How To Care For Rhubarb Plants

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.

Should I cut back my rhubarb?

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.

When should you not pick rhubarb?

A good rule of thumb is to pick your rhubarb no later than July 4. The harvesting period typically lasts about 8 to 10 weeks. Rhubarb plants are dormant during the fall and winter. If you try to harvest your rhubarb too late, the stalks might get frost damage and be inedible.

How do you increase rhubarb growth?

To boost growth, apply a general fertiliser in spring or summer. Every spring, apply a mulch of well-rotted garden compost in a layer about 7cm (2½in) deep around rhubarb plants, but take care not to bury the crown. Mulching helps to retain moisture in the soil.

Should you 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.

Does picking rhubarb encourage growth?

There’s no need to use a knife when harvesting rhubarb, simply pull and twist the stems off the plant, as this stimulates fresh new growth. Forced rhubarb is usually ready from late winter to early spring.

How do you take care of rhubarb in the spring?

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.

How do you winterize rhubarb?

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 should not be planted near rhubarb?

You’ll probably wonder which plants go well with rhubarb and the ones that don’t. Cauliflower, beans, kale, broccoli, and garlic are good companion plants for rhubarb. Meanwhile, melon, black walnut, cucumber, pumpkin, and dock do not go well with rhubarb in a garden or food forest.

How can you tell if rhubarb is ripe?

When you’re looking at the stalks, the color doesn’t indicate readiness, so don’t worry if your rhubarb stalks are not completely red. Instead, check the length. The stalks are ready when they’re between seven and 15 inches long. The best time to harvest rhubarb is during May, June and early July.

Can you pick rhubarb all summer?

Continued harvest through the summer months weakens the rhubarb plants and reduces the yield and quality of next year’s crop. The stalks will likely be a little tougher than those harvested in spring, but they are not poisonous. Plant vigor is the reason that rhubarb should not be harvested in summer.

Should you let rhubarb flower?

Should I Let My Rhubarb Flower? There is no harm in letting your rhubarb flower, but keep in mind that energy the rhubarb plant puts towards making a flower and growing seeds is energy that will not being directed towards growing leaves. Rhubarb flowers can simply be cut from the plant as soon as you see them appear.

How do I make my rhubarb stalks thicker?

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.

Why is my rhubarb so thin?

The most common reason for rhubarb having thin, spindly stalks is that the plant itself has gotten too large and mature. It seems counter-intuitive, but for rhubarb, a massive plant is the same problem as overcrowding with other plants (which is another cause of thin stalks).

Why is my rhubarb floppy?

Why are the rhubarb leaves shrivelling? Answer: It is also possible that the soil in which the rhubarb plants are planted is not rich enough in iron. Plants with iron deficiency will turn yellow and wiltoften noticed by yellowing between the veins in the leaves.

Can you do anything with rhubarb leaves?

Just like other poisonous plants such as Ivy, rhubarb leaves can be safely composted. Whilst rhubarb leaves do contain oxalic acid (a corrosive and a kidney toxin), oxalic acid has no significant effect on soil micro-organisms and will not affect microbial activity.

What can you do with rhubarb stalks?

Many suggest dipping the stalk in sugar or some other sweet, such as honey, maple syrup or agave nectar, to mellow its tartness a touch. Sprinkling diced rhubarb over yogurt or cereal is an option too.

What do I feed rhubarb?

Feeding in Spring and Autumn with a long lasting organic fertiliser such as blood, fish and bone or bonemeal (two good handfuls sprinkled around each plant) will be sufficient. If you have any well rotted manure then spread a layer around the plant but far enough away so as not to touch any emerging stalks.