Rhubarb (Rheum compactum)
Care, watering, light and tips for Rhubarb on Floravia.
Quick facts
- Family: Polygonaceae
- Difficulty: Demanding
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Rhubarb
Rheum compactum, also known as 'a er tai da huang', is a robust perennial plant belonging to the Polygonaceae family, valued for its large basal leaves and erect flower stalks. It develops lush, often reddish foliage, culminating in tall, dense inflorescences of small flowers. It is ideal for large rock gardens or as a focal point in perennial borders, providing a dramatic and structural presence.
Native range
Siberia and Central Asia
Care tips
It prefers full sun to light partial shade and deep, consistently moist but well-drained soils, rich in organic matter. Keep the soil constantly moist, especially during dry periods, but avoid waterlogging which can lead to root rot. A common mistake is planting it in poor or shallow soils, which limits its development and vigor. Protect young shoots from late frosts in colder climates.
How to save a dying Rhubarb
- Warning signs
- Wilting, yellowing, or soft leaves, drooping stalks.
- First aid
- Check drainage, reduce watering, move to partial shade.
- What kills it
- Overwatering, waterlogging, intense direct sun.
- Can it be saved?
- Yes, if you act quickly to remove the stressor.