Cytisus supranubius
Cloud-loving broom
Also known as Spartocytisus supranubius, Chamaecytisus supranubius, Spartocytisus nubigenus
- Height × spread
- 2m × 2.5m
- Position
- Full sun
- Hardiness
- Cold to -15C (RHS H5)
- Flowers
- Spring
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
For those who have visited the Canary Islands, specifically Tenerife and La Palma, the sight of this shrub in arid places, whether or not in flower, is an attractive feature in the mountainous regions. It forms dense textured mounds of fine twiggy foliage, not unlike a whipcord Hebe in a appearance. Stout spreading woody stems carry grey-green upright branches. In spring these are covered in small white flowers that are followed by hairy black seedpods. Although considered to be tender, this has successfully been grown in the Hillier Arboretum and gardens in Hampshire, so is worth a try, particularly in the milder parts of the country.
- Flower colour
- White
- Foliage colour
- Green
- Fruit colour
- Black
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 2m
- Spread
- 2.5m
- Season of interest
- Spring, Summer
- Flowers in
- Spring
- Evergreen
- Deciduous
- Garden style
- Gravel garden, Cottage garden
- Sun or shade
- Likes full sun
- Soil type
- All types
- Soil pH
- All types
- Drainage
- Dry soil, Drought resistant
- Hardiness
- Cold to -15C (RHS H5)
- Borders & containers
- Borders
- Use for
- Structural, Deer resistant, Rabbit resistant, Bee attraction
- Maintenance
- Easycare – low/no maintenance
- Hazards
- Yes, potentially harmful; Humans: Harmful if eaten
Spring
Spring - late · Outdoors
Feed young plants with slow release fertiliser
Spread a slow release fertiliser around the base of the plant to the edge of the foliage spread, so that it can feed the roots. It is helpful for this to be applied for several years.
This is a simple way to provide a nutrient boost until the plant becomes well established.
Spring-Autumn · Outdoors
Water after 2 weeks of no rain
Established plants in the ground enjoy dry or well drained soil, but don't survive long periods without water. When there's been no rain for a fortnight, do a deep water. Repeat after 1-2 weeks when the soil has dried out. Check plants in pots more often.
Spring - early · Planting
Prune new growth
Prune in early spring being careful only to prune wood that has been grown in the previous season of growth. Dead branches and misplaced or awkward branches can be removed in their entirety.
Planting & general
Outdoor planting · Planting
Add root growth stimulant to the planting hole
Mycorrhizal fungi helps roots establish quickly, so they absorb water and nutrients more efficiently. It comes as a powder, granule or gel. Add to the planting hole or container, and to the plant's rootball before planting in the hole. For "bareroot" plants use a gel.
Found in
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