Rheum Palmatum Tanguticum

2-3 Litre Pot

• Position: Full sun, partial shade
• Soil: Moist
• Growth rate: Average
• Flowering period: June
• Hardiness: H6
• Eventual height: 1.5 – 2.5m
• Eventual spread: 1 – 1.5m

Rheum Palmatum Tanguticum, commonly known as ‘Chinese Rhubarb’, is a large robust perennial belonging to the family Polygonaceae. It is native to China, Tibet, and the Himalayas, where it is known for its medicinal properties and used in traditional Chinese medicine.

The plant grows up to 2.5 metres tall and 1.5 metres wide, with large, broad leaves that can reach up to 1/2 metre in diameter. The leaves are deeply lobed and have a coarse, hairy texture. The underside of the leaves is a dusty grey-green colour, while the top side is a deep green. The stems are thick and sturdy, with a purplish-red colour and a smooth, glossy texture.

In late Spring, it produces tall, thick flower stalks that can reach up to 2 metres in height. The stalks are topped with clusters of small, pink flowers that eventually give way to seed heads. The seeds are small, brown, and triangular in shape, and are dispersed by wind.

In summary, this is a hardy and robust perennial plant with large, broad leaves and thick, purplish-red stems.  With proper care and patience, this plant can add a striking and useful element to any garden.

How to care for your Rheum Palmatum Tanguticum

• Soil and Location: Prefers well-draining soil that is rich in organic matter and slightly acidic. 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: It is drought-tolerant but will benefit from regular watering during dry periods. 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: They 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 Palmatum Tanguticum 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 stems that will add colour and interest to your garden.