Cytisus nigricans ‘Cyni’ (wild variety: central to southern Europe)
(= Lembotropis nigricans)
Habit: Small shrub 0.6-0.8 m tall, 0.6 m wide; loosely bushy with rod-like, upward-reaching shoots, moderate growth.
Flowers: Bright yellow butterfly flowers; June to August in long racemes, slight scent of honey.
Fruits: Flat husks, black-brown, poisonous.
Leaves: In threes, dark green, silky greenish hairs underneath; unspectacular pale yellow in autumn.
Twigs: Like switches, green, with fine grooves, break when old.
Roots: Deep roots with far-reaching lateral roots, collects nitrogen.
Demands: Full sun, very intolerant of shade, likes warmth, moderately frost hardy, low to medium humidity.
Soil: Extremely dry to moderately fresh; slightly acidic to alkaline, on all well drained substrates except peat and bog soil (unlike many other broom varieties!).
Our tip: Does not withstand heavy competition from stronger partners, thus most suitable as a pioneer plant in extreme areas.
Hardiness: Zone 5b