Cytisus nigricans, the black broom, is a species of flowering plant in the subfamily Faboideae of the family Fabaceae. Growing 3–5 ft (0.91–1.52 m) tall, it is a slender deciduous shrub with erect branches. Masses of brilliant yellow, slightly fragrant pea-like flowers appear in long racemes on the current year's growth in summer and early autumn.The more compact cultivar 'Cyni', to 1 m (3.3 ft), has gained the Royal Horticultural Society's Award of Garden Merit. It is hardy but prefers a sheltered position in full sun, with poor soil. It is preferable to remove the mature seed pods in autumn.
Black broom has strong resistance to disease and is generally not susceptible to illnesses. As for care, this plant is fairly low-maintenance. When grown outdoors it needs only minimal watering, and larger plants usually do not require pruning. Smaller plants, however, should be pruned after they finish blooming. Black broomt is appropriate for anyone with outdoor space, such as a garden or deck, and does not need much gardening experience.
How to keep Cytisus Nigricans.
Light
Black broom's strong growth and vigor depend on ample sunlight, reflecting the conditions of its native habitat. Every stage of its life cycle thrives in direct, unshaded sun. Insufficient sunlight can impair its growth, whereas too much sun causes little harm.
Temperature
Black broom is highly adaptable to a variety of climates, from blazing summers to frigid winters. Nonetheless, it has a preferred temperature range for healthy growth. If temperatures rise too far, the plant can experience heat and humidity stress that may kill it. In locations where temperatures near the lower bound of its cold tolerance, providing insulation to protect the plant is necessary.
Fertilizer
Timing is vital when fertilizing Black broom. Start fertilizing in early spring and continue once a month 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
- Cytisus
- Family
- Fabaceae
- Hardiness Zone
- 5-8
- Mature Height
- 30 cm to 91 cm
- Mature Spread
- 49 cm to 91 cm
- Leaf Color
- Green
- Leaf Type
- Deciduous
- Flower Color
- Yellow
- Flower Size
- 0.51 cm to 0.76 cm
- Bloom Time
- Early summer, Mid summer
- Planting Time
- Spring, Summer, Autumn
- Harvest Time
- Late summer, Early fall, Mid fall
Other names.
