Pitch trefoil (Bituminaria bituminosa)
Care, watering, light and tips for Pitch trefoil on Floravia.
Quick facts
- Family: Fabaceae
- Difficulty: Easy to care for
- Watering: every 5 days
- Light: Full sun
- Temperature: 5–35 °C
- Toxicity: Toxic to pets
About Pitch trefoil
Bituminaria bituminosa, also known as Pitch Trefoil or Bitumen Clover, is a perennial herbaceous plant from the Fabaceae family, native to the Mediterranean region. It is characterized by its trifoliate leaves and dense clusters of blue-violet flowers, which emit a distinctive bitumen-like scent when rubbed. It's an excellent choice for low-maintenance gardens, rockeries, or dry slopes, adding a wild and rustic touch.
Native range
Mediterranean region (Southern Europe, North Africa, Near East)
Care tips
This plant thrives in full sun exposure and is highly drought-tolerant, so watering should be moderate once established, avoiding waterlogging. It adapts to a wide range of well-drained soils, including poor and stony ones. It's crucial not to overwater, as this is its main weakness and can lead to root rot. Frequent fertilization is not necessary.
How to save a dying Pitch trefoil
- Warning signs
- Yellowish or brown, wilted, listless leaves. Poor or no flowering.
- First aid
- Move to a sunnier spot if in shade, or protect from intense summer sun. Ensure good drainage and moderate watering.
- What kills it
- Overwatering leading to root rot, or prolonged lack of direct sunlight. Compacted soil.
- Can it be saved?
- Yes, if roots aren't completely rotted and green shoots remain. Act quickly to correct the environment.