Begonia ‘Dark Side of the Moon’ is a striking hybrid cultivar prized for its metallic, near-black leaves with a subtle iridescent blue sheen and deep red undersides. The foliage creates dramatic contrast against clusters of soft pink flowers that appear in summer and early autumn. This Begonia originates from tropical and subtropical regions, bred specifically for its ornamental value and adaptability to indoor and shaded outdoor environments where humidity and consistent warmth can be maintained. This series of Begonias are surprisingly hardy, taking -5ºC in the Grow Paradise garden.
| KEY PLANT INFORMATION | |
|---|---|
| Family: | Begoniaceae |
| Plant Type: | Rhizomatous perennial |
| Plant Colours: | Dark leaves with red underside, pink blooms |
| Flowering period: | Summer to autumn |
| Fragrance: | None |
| Mature Height: | 30–45 cm (12–18 inches) |
| Light Requirements: | Partial shade |
| Water Requirements: | Evenly moist soil |
| Cold Hardiness: | -5°C (23°F) |
| Difficulty: | Easy to moderate |
Plant Type
Rhizomatous perennial
his begonia is a rhizomatous perennial often grown as a decorative houseplant or in shaded garden containers. Its lush foliage is the main attraction, making it a favourite for foliage-focused plant displays. As a hybrid, it combines hardiness with aesthetic appeal, requiring less maintenance than some rex types but still thriving in warm, humid conditions. It’s perfect for terrariums, shaded patios, plant groupings where filtered light enhances its vivid leaf colour.
Mature Height
30–45 cm (12–18 inches)
Begonia ‘Dark Side of the Moon’ typically reaches 30–45 cm (12–18 inches) in height, with a similar spread. It forms a dense mound of richly coloured leaves, creating a compact but lush appearance ideal for containers or understorey plantings. Though small, its bold leaf colour ensures it stands out in any planting scheme. With proper humidity and regular care, it maintains a tidy shape and strong growth without the need for heavy pruning. In climates like the UK it dies back in winter and reshoots in late spring.
Light Requirements
Full sun to partial shade
This begonia prefers bright, indirect light—such as that found near a north or east-facing window indoors, or in dappled shade outdoors. Direct sun can scorch its dark leaves, while too little light dulls their iridescence. Ideally, provide diffused light or filtered morning sun. Consistent, moderate light encourages balanced foliage growth and flower production. Artificial grow lights can supplement natural light during darker months, helping maintain its vivid colours and compact form.
Water Requirements
Moderate to high
Begonia ‘Dark Side of the Moon’ thrives in consistently moist but well-drained soil. Allow the top layer to dry slightly between waterings, avoiding both soggy roots and complete dryness. Overwatering can lead to root rot, especially in cool conditions of winter. In winter, water sparingly as growth slows. This balance of moisture and airflow keeps its rhizomes healthy and leaves glossy.
Cold Hardiness
-5°C (23°F)
Exposure to lower temperatures brings this Begonia into dormancy. During winter, ensure it has good drainage and the roots are well insulates with a thick layer of mulch.
Propagation tips
Begonia ‘Dark Side of the Moon’ is easily propagated from leaf or stem cuttings. Select a healthy leaf, cut along the main veins, and place it on moist potting mix under high humidity. Alternatively, take a rhizome division or tip cutting with at least one node. Cover with a plastic dome or keep in a propagator until new roots develop. Warm temperatures (around 22–25°C / 72–77°F) and indirect light encourage quick, successful rooting.
