- Nguồn: [Ebook] The Houseplant Handbook: Basic Growing Techniques and a Directory of 300 Everyday Houseplants – David Squire
- Biên tập: Dũng Cá Xinh (Tháng 02/2022)
- Dịch: Team Codai.net
English
Sand Dollar, Sand Dollar Cactus, Sea Urchin Cactus, Silver Dollar: Astrophytum asterias
Cactus with a gray-green, flattened, hemisphere-like body covered with white spots and revealing 8 spineless ribs. During early and midsummer it produces pale, shiny yellow flowers.
Height: 1–1 1/4in (25–30mm) |
Spread: 2–3in (5–7.5cm) |
Winter: 41–50°F (5–10°C). Full sun |
Summer: 50–70°F (10–21°C). Full sun, or direct light without full sun |
Care: In winter, keep compost dry; in summer, water whenever it becomes dry. Feed every 2 weeks from when buds show color to late summer. |
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Propagation: Sow seeds in spring, in 75–80°F (24–27°C). |
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