Hoary frostwort (Helianthemum canum)
Care, watering, light and tips for Hoary frostwort on Floravia.
Quick facts
- Family: Cistaceae
- Difficulty: Easy to care for
- Watering: every 10 days
- Light: Partial shade
- Temperature: 10–30 °C
About Hoary frostwort
Helianthemum canum, commonly known as White Rock-rose, is a small, evergreen shrub belonging to the Cistaceae family, native to Europe and western Asia. It is characterized by its small, lanceolate, grayish-green leaves covered with whitish hairs that give it a silvery appearance, and its bright yellow flowers that bloom in spring and summer. It is an excellent choice for rockeries, gravel gardens, or sunny borders, adding a splash of color and drought resistance.
Native range
Mediterranean region of Europe and North Africa
Care tips
It requires full sun for abundant flowering and optimal development. Watering should be sparse once established, as it tolerates drought very well and overwatering can be detrimental. It prefers well-drained, poor to moderately fertile soils, preferably calcareous. A common mistake to avoid is overwatering, especially in winter, which can lead to root rot.
How to save a dying Hoary frostwort
- Warning signs
- Dry, crispy leaves, easily falling off. Wilted and dehydrated appearance.
- First aid
- Immediate deep watering if substrate is dry. Protect from intense direct sun if potted.
- What kills it
- Excessive moisture, especially in winter, or heavy soils. Does not tolerate waterlogging.
- Can it be saved?
- Yes, if roots are not rotted and main stem is still alive. Water carefully.