Plate No. 26
Black Rose
Aeonium arboreum 'Zwartkop'
"A dark rosette on a bare stem"
Native to
A cultivar derived from species native to the Canary Islands

Identification
Is this your plant?
Compare these reference photographs to help identify a black rose in your own collection.
Whole plantA Black Rose shown in full — overall shape and habit.
Leaf detailClose-up of Black Rose leaves — texture, color, and edges.
FlowersBlack Rose in bloom — flower form and color.
Growth formBlack Rose growing habit — stems, base, and offsets.
History
A brief account
Bred in the Netherlands during the 1960s—Zwartkop is Dutch for “black head”—this striking cultivar helped popularize dark-foliaged succulents in modern garden design. It descends from the green tree aeonium native to the Canary Islands, where these drought-adapted plants evolved on volcanic slopes under mild, Mediterranean conditions. Its glossy, near-black rosettes deepen to an almost ebony hue in full sun, while plants grown in shade or low light gradually revert to deep burgundy or green.
Unlike many succulents, Aeonium is a winter grower. It produces new leaves during the cooler months and often becomes semi-dormant in the heat of summer, when the rosettes may tighten and shed their lower leaves. Mature plants can develop elegant branching stems topped with multiple rosettes, creating a sculptural form that makes ‘Zwartkop’ a favorite in contemporary landscapes and container gardens.
How to care for
Place Black Rose according to its light needs: Bright direct sun deepens the burgundy-black tones. For watering, moderate in winter growth; rest dry in summer dormancy. For the potting medium, use free-draining cactus and succulent mix. Good drainage is essential: let surplus water escape freely and never leave the roots standing in a wet saucer.
5–25°C. Prefers cool winter growth. Check the compost before watering instead of following a rigid calendar, since light, temperature, pot size and season all affect how quickly it dries. During slower growth, reduce watering and wait longer between drinks.
How to propagate
Stem cuttings root readily after a few days' callous. Propagation is most reliable during the plant's active growing season, when warmth and good light help new roots establish. Start with clean tools and healthy material, and keep the new plant in conditions appropriate for the parent.
Where a cutting or division creates a wound, allow the surface to dry before planting unless the method calls for immediate rooting in water or moist mix. Once roots form and fresh growth appears, gradually move the young Black Rose into its normal watering routine; excess moisture is especially risky while the root system is still small.
Cultivation
Quick tips for care & planting
- Light
- Bright direct sun deepens the burgundy-black tones.
- Water
- Moderate in winter growth; rest dry in summer dormancy.
- Soil
- Free-draining cactus and succulent mix.
- Temperature
- 5–25°C. Prefers cool winter growth.
- Propagation
- Stem cuttings root readily after a few days' callous.