Coronilla valentina, the shrubby scorpion-vetch, scorpion vetch or bastard senna, is a species of flowering plant in the genus Coronilla of the legume family Fabaceae, native to the Mediterranean Basin, and introduced into Kenya and the United States. It is an evergreen shrub growing to 80 cm (31 in) tall and wide, with pea-like foliage and fragrant, brilliant yellow flowers in spring and summer, followed by slender pods. Linnaeus observed that the flowers, remarkably fragrant in the daytime, are almost scentless at night.In cultivation it is fairly hardy, but prefers Mediterranean conditions, with shelter and warm sunshine. The subspecies C. valentina subsp. glauca (syn. C. glauca) and its cultivar 'Citrina' have gained the Royal Horticultural Society's Award of Garden Merit (confirmed 2017).
Glaucous Scorpion-Vetch is resistant to disease and is usually not susceptible to illnesses. Regarding upkeep, this plant is fairly low-maintenance. Outdoors it needs only light watering, and larger specimens typically do not require pruning. Smaller specimens, however, should be trimmed once they have finished blooming. Glaucous Scorpion-Vetcht is appropriate for anyone with outdoor space, like a garden or deck, and does not demand extensive care experience.
How to keep Coronilla Glauca.
Light
Glaucous Scorpion-Vetch is native to open habitats, such as sunny meadows and forest edges, which offer abundant light. It thrives in Full Sun but can also tolerate Partial Sun, adapting well to a range of sunlight conditions.
Temperature
Glaucous Scorpion-Vetch is quite adaptable to temperature, able to withstand high heat and wide temperature swings. In hot weather, you should ensure proper watering and offer adequate shade to avoid sunburn. Conversely, Glaucous Scorpion-Vetch has limited tolerance to cold; it can endure some chill, but very low temperatures may cause frost damage.
Fertilizer
Timing is important when fertilizing Glaucous Scorpion-Vetch. Apply fertilizer in early spring and continue monthly until early summer. Fertilizer encourages attractive blooms and supplies energy during both dormant and active growth periods.
Botanical profile.
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Coronilla
- Family
- Fabaceae
- Hardiness Zone
- 7-10
- Mature Height
- 91 cm
- Mature Spread
- 91 cm
- Leaf Color
- Blue, Green, Gray, Silver
- Leaf Type
- Evergreen
- Flower Color
- Yellow
- Flower Size
- 1.02 cm to 1.52 cm
- Bloom Time
- Mid winter, Late winter, Spring
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Late spring, Early summer, Mid summer
- Native Area
- Libya, Turkey, Tunisia, Italy, Portugal, Spain, Albania, Algeria, Greece, Croatia, Morocco, France
Other names.
