景天

景天的基本資料

栽培難度

適合新手

壽命

10+ years

體型

5-30cm (varies by variety)

適宜溫度

-5〜35℃

Sunlight

Loves sunlight. Can grow outdoors

Watering

When soil fully dries. Less is fine

Cold tolerance

Some varieties tolerate down to -10°C

Propagation

Easy propagation by leaf or stem cuttings

Notes

Sensitive to overwatering — use well-draining soil

關於景天

Sedum is a large genus of succulents in the family Crassulaceae, with over 600 species distributed primarily across the Northern Hemisphere. Its name derives from the Latin "sedere" (to sit), reflecting how it settles into dry, rocky terrain and stone walls. Leaf shapes range from plump, bead-like forms to flat rosettes, and many varieties offer striking visual interest — Sedum rubrotinctum (Jelly Beans) blushes deep red in autumn, while Aurora blends soft pink and green year-round. As a group, Sedum is notably tough, tolerating drought and heat with ease, making it suitable both as outdoor ground cover and as a compact indoor plant. Given the right conditions, individual plants can live for over a decade, rewarding patient growers with steady, satisfying growth. The ease of leaf propagation is another draw, allowing collectors to multiply their plants and experiment with creative arrangements.

開始照料景天前需要了解的7件事

1. 1Sunlight Is Key

   Sedums thrive with 4–6 or more hours of direct sunlight daily. Insufficient light causes etiolation—stems stretch and lose their compact form. Grow them outdoors or place them on a bright south-facing windowsill indoors.

2. 2Avoid Overwatering

   Root rot in sedums is almost always caused by overwatering. Wait until the soil is fully dry for several days before watering thoroughly. In winter, when growth slows, reduce watering to once or twice a month.

3. 3Use Well-Draining Soil

   Use a dedicated succulent mix or combine akadama with pumice for excellent drainage. Standard potting soil retains too much moisture for sedums. Always use a pot with drainage holes and add a layer of gravel at the bottom.

4. 4Cold Hardiness Varies by Variety

   Cold tolerance varies significantly among sedum varieties. Some, like Rubrotinctum, can handle temperatures around 5°C, but many are vulnerable to frost and freezing. Move plants under eaves or indoors in winter according to each variety's needs.

5. 5Easy Propagation by Leaf

   Sedums propagate easily from individual leaves or stem cuttings. Simply place a healthy leaf on dry soil and wait for roots and new growth to appear. The high success rate makes propagation an enjoyable part of growing sedums, even for beginners.

6. 6Fertilize Sparingly

   Sedums grow well in low-nutrient conditions, so excessive fertilizing is counterproductive. A diluted liquid fertilizer formulated for succulents, applied once a month during the growing seasons of spring and autumn, is sufficient. Over-fertilizing can cause etiolation and increase disease risk.

7. 7Explore a World of Varieties

   The Sedum genus encompasses hundreds of varieties with an enormous range of colors, shapes, and sizes. From compact accent plants perfect for mixed arrangements to creeping types ideal as ground cover, the options are vast. Many enthusiasts find themselves drawn deeper into collecting as they discover new varieties.

景天的常見問題

Q.Can Sedum be grown indoors?

A.Sedum can be grown indoors on a bright, sunny windowsill. However, insufficient light causes leggy growth, so place it in the brightest spot available and aim for at least a few hours of direct sunlight each week.

Q.How often should I water Sedum?

A.Water only after the soil has dried out completely — roughly every two weeks in spring and fall, and once a month in summer and winter. Since drying time varies by season and location, check the soil with your finger before watering rather than following a fixed schedule.

Q.How can I get my Sedum to turn red?

A.Varieties like Sedum rubrotinctum color up in autumn when exposed to strong sunlight combined with cool temperatures and wide day-to-night temperature swings. From September to November, move plants outdoors or to a sunny window and reduce watering slightly to encourage the best color.

Q.Why are my Sedum leaves shriveling?

A.Shriveling leaves usually signal underwatering when the soil has been dry for too long. However, the same symptom can appear when root rot has set in, so check the soil and inspect the roots as well before simply increasing watering.

景天栽培的實用工具

Learn more about 景天 in the encyclopedia

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