Aeonium arboreum var. atropurpureum

Aeonium arboreum var. atropurpureum, also known as Aeonium arboreum 'Zwartkop' or Aeonium 'Schwarzkopf', is a variety of Aeonium arboreum prized for its dark, purplish-black leaves. Basic care for this variety is similar to that of standard Aeonium arboreum, but there are a few differences to consider to highlight its specific characteristics:

1. Light: Like other Aeonium arboreum, Aeonium arboreum var. atropurpureum prefers sunny exposure. Place it in a spot with bright to indirect light. Direct sunlight will help maintain the deep purple color of its leaves.

2. Temperature: It tolerates similar temperatures to standard Aeonium arboreum, between 15°C and 25°C. Protect it from frost in winter, as it is more susceptible to cold due to its dark color.

3. Watering: Water moderately, allowing the substrate to dry out between waterings. Ensure the pot has good drainage to prevent root rot. Aeoniums are more drought-tolerant than most other succulents.

4. Fertilization: Fertilize lightly with a balanced succulent fertilizer during the growing season, usually in spring and summer. You don't need to fertilize frequently.

5. Pruning: Prune to maintain the desired shape and remove dead parts. Pruning can also encourage branching.

6. Repotting: Repot when the plant outgrows its pot or the substrate is depleted. Use a slightly larger pot and a soil mix specifically designed for succulents.

7. Pest Protection: Monitor for pests, especially mealybugs and aphids. Treat as needed.

8. Dormancy: Like standard Aeonium arboreum, Aeonium arboreum var. atropurpureum may enter a dormant period in fall and winter. Reduce watering during this period.