Colocynth (Citrullus colocynthis)
Care, watering, light and tips for Colocynth on Floravia.
Quick facts
- Family: Cucurbitaceae
- Difficulty: Moderate care
- Watering: every 7 days
- Light: Partial shade
- Temperature: 10–30 °C
- Toxicity: Toxic to pets
About Colocynth
Citrullus colocynthis, commonly known as Bitter Apple or Colocynth, is a perennial creeping plant belonging to the Cucurbitaceae family, native to arid regions. It produces small, round, pale green to yellow fruits resembling miniature watermelons, which are highly toxic. This plant makes an interesting ornamental choice for xeriscaping or as ground cover in hot, dry climates, though it must be handled with caution due to its toxicity.
Native range
North Africa, Middle East, and West Asia
Care tips
It requires full sun and sandy, well-draining soils, preferably low in nutrients. Watering should be sparse once established, as it is extremely drought-tolerant; overwatering is its biggest enemy. Avoid direct contact with the fruits and handle the plant with gloves, as all its parts are toxic and can cause irritation. It is not suitable for gardens where children or pets may easily access it.
How to save a dying Colocynth
- Warning signs
- Yellowing or wilting leaves, soft stems, fruits not maturing or dropping.
- First aid
- Check drainage and soil moisture. Move to full sun, but protected from extreme heat. Prune damaged parts.
- What kills it
- Overwatering (root rot) or prolonged drought in hot, dry climates. Insufficient light.
- Can it be saved?
- Yes, if acted upon quickly. It's resilient, but dislikes waterlogging or dense shade.