Purple gromwell (Aegonychon purpurocaeruleum)
Care, watering, light and tips for Purple gromwell on Floravia.
Quick facts
- Family: Boraginaceae
- Difficulty: Easy to care for
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Purple gromwell
Aegonychon purpurocaeruleum, also known as Purple Gromwell or Blue Gromwell, is a perennial herbaceous plant from the Boraginaceae family, prized for its vibrant flowers that transition from reddish-purple to deep blue. It forms dense, spreading mats, making it ideal as groundcover in borders, rockeries, or semi-shaded areas where a floral carpet effect is desired. Its dark green foliage beautifully complements the colorful display of its small but numerous flowers.
Native range
Southern and Central Europe, Northwest Africa, and Southwest Asia.
Care tips
It prefers partial shade or dappled sunlight, although it can tolerate more sun in cooler climates. It requires well-drained soil, preferably calcareous or neutral, and benefits from moderate watering, allowing the substrate to dry out slightly between waterings, though it is quite drought-tolerant once established. Avoid waterlogging, as it can lead to root rot; a common mistake is overwatering in heavy soils.
How to save a dying Purple gromwell
- Warning signs
- Wilting or yellowing leaves, soft stems, sparse or no flowering.
- First aid
- Check soil drainage and moisture. Move to partial shade if in full sun.
- What kills it
- Overwatering causing root rot, or soil too dry and exposed to direct sun.
- Can it be saved?
- Yes, if roots aren't completely rotted and you act quickly.