2-3 Litre Pot
- Position: Full sun, partial shade
- Soil: Moist, well drained
- Growth rate: Average
- Flowering period: June
- Hardiness: H6
- Eventual height: 1.5 – 2.5m
- Eventual spread: 1.5 – 2.5m
Rheum Rubrum, commonly known as ‘Red Rhubarb’, is a large and striking perennial plant that belongs to the family Polygonaceae. It is primarily grown for its ornamental value due to its dramatic, deep red to burgundy stems and its large, lush foliage.
The leaves are large, heart-shaped, and have a greenish-blue colour. The undersides of the leaves are typically a dusty grey-green, giving them a distinctive silvery appearance. The stems of the plant are tall and thick, growing up to 60cm in height and 5cm in diameter. They emerge from a central crown and are typically bright red or burgundy, with a slightly rough, pebbly texture.
It is a cold-hardy plant and prefers cool, moist climates. It can be grown in a variety of soil types, but thrives in well-drained, fertile soil with plenty of organic matter. The plant prefers partial shade but can also tolerate full sun, as long as the soil is kept consistently moist. It is typically propagated by dividing mature plants in early spring or by planting seeds in the Autumn.
In summary, this is a striking and hardy ornamental plant that adds drama and colour to the garden. Its large, silvery foliage and bright red stems make it a standout plant in any landscape.
How to care for your Rheum Rubrum
- Soil and Location: Prefers fertile, well-draining soil that is rich in organic matter. The plant can tolerate partial shade but prefers full sun. When selecting a planting location, choose an area that is sheltered from strong winds.
- Watering: Requires regular and consistent moisture, especially during hot and dry weather. Water the plant deeply once or twice a week, depending on weather conditions and soil drainage. Avoid overwatering, as this can cause root rot.
- Fertilisation: Are heavy feeders and require regular fertilisation to thrive. Apply a balanced fertiliser in early Spring, and again after the harvest season is over. Alternatively, use organic fertilisers such as compost or well-rotted manure.
- Mulching: Applying a layer of mulch around the plant will help retain soil moisture, suppress weeds, and add nutrients to the soil. Apply a layer of organic mulch, such as compost, straw, or shredded leaves.
- Pruning: Remove any flower stalks that appear as soon as they are noticed. This will prevent the plant from wasting energy on seed production and instead direct it towards stem growth. After the harvest season, remove any dead or damaged leaves and stalks to promote new growth.
In summary, providing Rheum Rubrum with the right growing conditions, regular watering and fertilisation will ensure a healthy and thriving plant. With proper care, this plant will produce striking foliage and vibrant red stems that will add colour and interest to your garden.
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