Rhubarb is a hardy, long-lasting plant that can thrive for over a decade once established. Not only is it a low-maintenance crop, but it also offers a range of culinary possibilities, from crumbles to chutneys, and is virtually pest-free. In this guide, we’ll walk you through everything you need to know to grow your own rhubarb, from planting to harvesting.
Choosing the Right Location for Rhubarb
Rhubarb is a perennial plant that requires a permanent space in your garden, so it’s important to choose its spot carefully. Rhubarb thrives in moist, well-drained soil but must not sit in waterlogged conditions as this can lead to root rot. Ideally, it should be planted in a sunny location, although it will also grow in dappled shade.
Soil preparation is key to establishing a healthy rhubarb plant. Start by removing any weeds, then enrich the soil by digging in plenty of well-rotted manure or nutrient-rich compost. Rhubarb is a “hungry” plant, and the soil should be rich to support its growth for many years.
Planting Rhubarb
Rhubarb can be planted at any time of year if you are using container-raised plants, but it’s best to avoid times when the ground is frozen, overly wet, or excessively dry. Autumn is an excellent time to plant, but if you live in a colder climate, spring may be a better option.
When planting, dig a hole large enough for the plant’s crown (the part where the stems will shoot from), ensuring that it sits level with the soil. If you are planting multiple rhubarb plants, space them at least 2.5 to 3 feet (80 cm) apart to allow ample room for growth.
While rhubarb can be grown in containers, it requires a large one—at least 40 liters (10 US gallons) of space. Use a soil-based potting mix, adding generous amounts of compost or well-rotted manure for nutrients.
Caring for Rhubarb
Once planted, rhubarb is relatively low maintenance. However, there are a few key care practices to follow to ensure a healthy and productive plant. The most important tip is to resist the temptation to harvest during the first year. This allows the plant to establish a strong root system that will support future growth.
In the second growing season, you can begin harvesting rhubarb. To encourage the plant to focus on producing stems, remove any flower stalks that appear. Keep the plant well-watered during dry spells, especially in its first few seasons, and cut back all leaves and stems at the end of the growing season to prepare the plant for winter.
Autumn is also a good time to give your plant a boost. Add a mulch of well-rotted manure or compost around the crown, leaving the buds exposed. This helps retain soil moisture, suppress weeds, and provide nutrients for the following season.
Harvesting and Forcing Rhubarb
Rhubarb typically begins producing harvestable stalks in its second growing season. To harvest, gently pull the stems away from the crown, making sure to hold the base to avoid damaging the plant. Only harvest a few stems at a time to avoid stressing the plant. Finish harvesting by midsummer to give the plant time to recover before winter.
One way to get an early crop of rhubarb is by “forcing” it during late winter. Cover the crown with a pot, bucket, or similar object to exclude light, which causes the stems to grow rapidly. These early stems are tender and have a superior texture. After forcing, let the plant rest for at least two years before forcing it again.
Rhubarb can produce a large harvest, and if you find yourself with more than you can use, you can freeze it or turn it into preserves to enjoy year-round.
Conclusion
Rhubarb is a stunning, low-maintenance addition to any garden, offering abundant, tasty stalks for years to come. Whether you’re making desserts or preserves, rhubarb is a versatile crop that’s well worth the space it takes in your garden. With a little care and patience, you’ll soon be harvesting your own fresh rhubarb and enjoying its unique flavor in your favorite recipes.