Planting and Growing Guide for Rhubarb (Rheum rhabarbarum)
Description
Rhubarb is a perennial plant that is easy to grow in cool climates. It is grown for its red stems. Once established Rhubarb can be left a patch in your garden for harvesting year and year. Rhubarb is hardy and grows well in most soils, but the crown will rot in heavy, wet clay soils. Rhubarb can cope with dry periods and is frost tolerant, but will die back in cold weather. Rhubarb does better in cooler climates, but can be grown in shady areas of warm climates. You can dig up and divide rhubarb to make more plants in winter when the plants are dormant.
Note: Do not eat the leaves or roots as they contain oxalic acid which is poisonous. Do not feed Rhubarb to poultry or stock for the same reason.
Harvest the stems when they are about finger-thick. Larger stems have tough 'strings' running down their length, which makes them less appealing. Rhubarb is often stewed as a dessert and is used in pies, crumbles, preserves and jams.
Planting Guide
Seed Depth: Plant pieces or roots or rhizomes about 8-10 cm (3-4 inches) deep.
Space between plants: Allow about 90 cm (3 feet) between plants
Harvest Time: Harvest in 6-9 months. Once established can be harvested continuously
Hints:
- Grows best in full sun in cooler areas, but can grow in hotter areas if planted in a shady spot.
- Dig aged compost, or well-rotted animal manure, into the soil several weeks before planting. Feed regularly and add compost around the plants as they grow as a mulch and source of nutrients.
- Water frequently but do not over-water.
- Weed well in the early stages until plants are well established. Feed regularly with liquid fertiliser
- Ensure the stems are flavorsome by growing the plants quickly and avoiding growth checks.
- Rhubarb does well in a range of soils with a slightly acid pH (5.5 to 6.5)
- When harvesting, always leave at least 2-3 stalks on each plant to ensure continued production.
Disclaimer: The PlantWhatWhen vegetable planting guide is only designed for use as a very general reference for home gardening purposes. It is not to be used for farming, markets or commercial activities of any kind whatsoever. We take absolutely no responsibility for the accuracy and adequacy of the information provided on this site. We recommend that you consider your local climate, weather patterns and conditions when deciding what and when to plant in your home garden. It's entirely your own decision. Happy Gardening and Best Wishes!