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Fabaceae
Trifolium ambiguum
Trifolium ambiguum
Also known as Trifolium ambiguum var. majus, Trifolium vaillantii, Amoria ambigua
Flowering Plants · Native Plants · Clover · Nitrogen Fixing · Ground Cover · Pasture · Caucasian · Perennial · Pollinator · Low Maintenance · Fabaceae · Soil Improvement
Caucasian clover (Trifolium ambiguum) is a deep-rooted, long-lived perennial clover valued for its persistence in pastures and its ability to fix atmospheric nitrogen, making it an excellent choice for naturalistic or restorative gardens. It grows slowly at first but establishes a robust root system that improves soil fertility and supports pollinators. Mow or cut back occasionally to encourage fresh growth and maintain a tidy appearance.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water moderately; tolerates periodic dryness once roots are established · Every 10-14 days once established
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 5.7–7.2
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Division, Cutting
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 4 ft
- Spacing
- 12 in apart
- Growth rate
- Slow
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Iran, Iraq, Krym, New South Wales, North Caucasus, South European Russi, Turkey, Ukraine
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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