Aeonium 'Zwartkopf'
Tree aeonium, Houseleek
Also known as Aeonium arboreum 'Zwartkopf', Aeonium arboreum 'Schwarzkopff'
- Height × spread
- 2m × 1m
- Position
- Full sun
- Hardiness
- Heated greenhouse 5C & above (RHS H1c)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This tender plant looks extremely exotic with whorls of long slender black leaves, flattening out like spoons at their ends, green at the petal base. The plant rises on long stems, and rosettes appear from the base. This does well in a pot. It should be kept in the conservatory over winter and be put out in a hot sunny site for the summer months. It can ultimately achieve a height of 2m (7ft).
- Flower colour
- Yellow
- Foliage colour
- Black, Red
- Variegated
- No
- Scent
- No
- Shape
- Round
- Height
- 2m
- Spread
- 1m
- Season of interest
- Summer
- Flowers in
- Summer
- Evergreen
- Evergreen
- Garden style
- Mediterranean garden, Indoors
- Sun or shade
- Likes full sun
- Soil type
- Chalk, Gravelly soil, Loam (normal), Poor soil, Sandy soil
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Dry and shady soil, Drought resistant
- Hardiness
- Heated greenhouse 5C & above (RHS H1c)
- Borders & containers
- Borders and containers
- Indoor light
- full light at all times
- Indoor temperature
- 10C minimum temperature
- Hazards
- No
Spring
Spring-Autumn · Indoors
Feed a general fertiliser
Give a general purpose feed two or three times during the growing season, preferably not within a month of its end so the plant isn't encouraged to make fresh young growth.
Where food elements are listed as three numeric values on the label representing in order Nitrogen(N)-Phosphorus(P)-Potassium(K), with percentage values for each, choose one where the values are more or less equal.
Spring-Autumn · Indoors
Water when compost is dry
Allow the compost to become virtually dry before watering while in growth.
Spring-Autumn · Outdoors
Feed a general fertiliser
Give a general purpose feed two or three times during the growing season, preferably not within a month of its end so the plant isn't encouraged to make fresh young growth.
Where food elements are listed as three numeric values on the label representing in order Nitrogen(N)-Phosphorus(P)-Potassium(K), with percentage values for each, choose one where the values are more or less equal.
Spring-Autumn · Outdoors
Water regularly during growth
Water regularly while in growth.
Adopt a regime that means the plants are thoroughly watered every week so that they do not become dessicated. In hot weather watering may need to be more frequent, but less often in cool or moist conditions.
Winter
Winter · Indoors
Water sparingly during dormancy
In its dormant period give very little water, keeping the soil barely moist. Dormancy is likely to be during the winter and the plant recommences growth in early to mid spring.
When a plant enters dormancy the leaves fade, go yellow and then brown. Eventually the whole plant may 'disappear' or unadorned stems may remain.
Winter · Outdoors
Water sparingly during dormancy
In its dormant period give very little water, keeping the soil barely moist. Dormancy is likely to be during the winter and the plant recommences growth in early to mid spring.
When a plant enters dormancy the leaves fade, go yellow and then brown. Eventually the whole plant may 'disappear' or unadorned stems may remain.
Planting & general
Indoors
Water with rain water
This plant needs rain water or soft water (the minerals in alkaline or "hard" water are harmful). This is especially important for plants in pots.
Indoor temperature · Planting
10C minimum temperature
This plant requires a minimum temperature of 10 Centigrade.
Compost · Planting
Cactus compost for repotting
Use standard cactus compost. Top the soil with grit or granite chips to ensure perfect drainage around plant stem. Repot when the plant is dry and delay watering for 3 days after repotting.
You can also make own compost using 3 parts John Innes no. 2, 1 part horticultural grit, and 1 part horticultural grade perlite or pumice. There are many 'recipes' available and opinions vary widely - consult specialist literature or websites.
Indoor plant · Planting
Position in a sunny spot, but not mid-summer sun
This plant likes a sunny spot and needs full light at all times, but not the mid-summer sun which is too intense and can scorch the plant.
Found in
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