Fabaceae
Colutea arborescens subsp. gallica
Colutea arborescens subsp. gallica
Also known as Colutea gallica
Flowering Plants · Native Plants · Trees & Shrubs · Shrub · Deciduous · Legume · European Native · Nitrogen Fixer · Yellow Flowers · Bladder Senna · Fast Growing · Drought Adaptable
French Bladder Senna is a tough, fast-growing shrub that thrives in well-drained soil with moderate watering and partial to full sun. It is well-suited to temperate garden borders and requires little fertilization, as it fixes nitrogen from the air like most legumes. Prune lightly after flowering to maintain a tidy shape and encourage bushy regrowth.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water deeply until soil is moist, then allow top inch to dry before watering again · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–8.5
- Temperature
- -20°F to 90°F
- Cycle
- Perennial
Hardiness
USDA 5a-9b
Form & growth
Mature size and habit
- Mature height
- 18 in – 3 ft
- Spread
- 2 ft
- Spacing
- 60 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- Austria, Corse, France, Germany, Italy, Sardegna, Switzerland, Yugoslavia
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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