Descurainia preauxiana
Care, watering, light and tips for Descurainia preauxiana on Floravia.
Quick facts
- Family: Brassicaceae
- Difficulty: Moderate care
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Descurainia preauxiana
Descurainia preauxiana, known as Despreaux' Rauke, is a perennial herbaceous plant endemic to the Canary Islands, belonging to the Brassicaceae family. It develops branched stems with finely divided leaves and small yellow flowers clustered in terminal racemes. It is ideal for rock gardens, xerophytic landscapes, or as an accent plant in pots, adding a wild and resilient touch.
Native range
Endemic to the Canary Islands, Spain
Care tips
It requires full sun exposure for optimal development, although it toler tolerates light partial shade. Watering should be moderate, allowing the substrate to dry completely between waterings, as it is sensitive to waterlogging. It prefers well-drained soils, preferably sandy or stony, with a neutral or slightly alkaline pH. A common mistake to avoid is overwatering, which can lead to root rot.
How to save a dying Descurainia preauxiana
- Warning signs
- Wilted or yellowing leaves, stunted growth, soft stems. May indicate water stress or nutrient deficiency.
- First aid
- Water moderately if soil is dry. If potted, check drainage. Consider repotting if substrate is poor.
- What kills it
- Overwatering leading to root rot or lack of light. Does not tolerate waterlogging or dense shade.
- Can it be saved?
- Yes, if you act quickly. It's a resilient species, but needs good drainage and sun.