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Begonia semperflorens-cultorum /bəˈɡoʊni.ə/

Common name: Wax begonia · Bedding begonia · Fibrous begonia

Begonia semperflorens-cultorum is a hybrid group of compact, fibrous-rooted begonias derived largely from Begonia semperflorens, native to Brazil. They form tidy mounds of glossy green or bronze foliage studded with white, pink, or red flowers that bloom continuously through the season. Valued for their reliability in shade or sun, they are among the most widely planted bedding annuals in the world.

Care summary

Sun Full sun to partial shade; afternoon shade in hot climates
Water Keep evenly moist; do not let dry out completely
Soil Rich, well-draining soil high in organic matter
Hardiness Zones 10–11; grown as annual elsewhere
Mature height About 15–30 cm (0.5–1 ft)
Pet safe No — toxic to cats and dogs
Difficulty Easy
Propagation Usually raised from seed, sown on the surface of moist mix without covering, where it germinates in warmth and bright light. Stem cuttings also root easily: take a short non-flowering tip cutting, insert it into moist, light mix, and keep it warm and humid until rooted.

Fun facts

  • Waxy leaves give this group the common name wax begonia
  • Popular annual bedding plant grown worldwide

Common problems

    • Let soil surface dry between waterings
    • Grow in pots with drainage holes
    • Cut away and discard mushy stems
    • Improve airflow around crowded plants
    • Avoid wetting foliage when watering
    • Apply sulfur fungicide at first sign
    • Dab insects with rubbing alcohol
    • Rinse plants under a firm spray
    • Isolate infested plants from others
    • Move plants to brighter indirect light
    • Pinch stem tips to encourage branching