麗虹玉 (Lithops dorotheae)

麗虹玉 (Lithops dorotheae)的基本資料

栽培難度

適合新手

壽命

多年生（壽命記錄較少）

體型

中型生石花。約2年後分頭並叢生

適宜溫度

8〜25℃

澆水

生育期（秋至春）施用少量緩效肥料或液體肥料

光照及放置位置

全年在光線充足、有遮雨設備的戶外種植。仲夏畏懼高溫高濕，需確保通風、遮光並涼爽管理。

澆水

為冬型，秋至冬生長。生育期（9至11月）待培土乾燥後充分澆水。開花期缺水時花可能無法充分開放。冬季選擇溫暖日子澆水，夏季休眠期約每月霧化2至3次。

溫度及越冬

冬季最低溫度不低於3℃時能保持株型美觀（不枯死的目安為0至3℃）。輕霜鮮有使其枯死，惟嚴寒期應移入室內或採取防寒措施。

培土及換盆

其主根呈牛蒡狀，應植於深度適中、排水性良好的培土中。毋需頻繁換盆，待生長遲滯或盆土過窄時，於10至11月進行換盆。

繁殖方法

可於10至11月播種，或將叢生的株進行分株繁殖。欲確保「Zorro」等選拔品種的紋樣特徵，應採用分株法。

病蟲害及注意事項

花蕾和花朵易有介殻蟲和蚜蟲，根部可能有根粉蚧，花瓣易被蛞蝓食用，葉片易被夜蛾幼蟲食用。凋謝的花應以手指摘除，否則易導致腐爛。

關於麗虹玉 (Lithops dorotheae)

Lithops dorotheae is a medium-sized lithops with deep red branching patterns on its swollen windows. Beginner-friendly, it can divide and form a clump over time. Here are its features and care basics.

開始照料麗虹玉 (Lithops dorotheae)前需要了解的7件事

1. 1Light and placement

   Lithops love sun, so keep the plant where it gets plenty of direct light. With too little light it stretches and loses its compact shape. Long exposure to rain can damage it, so outdoors choose a spot under eaves or another place shielded from rain.

2. 2Water by season

   Watering centers on the autumn growing season, and only once the soil has dried out completely. Cut back sharply during the winter-to-spring molting period and the summer dormancy. Daily watering can lead to root rot or split bodies, so avoid it.

3. 3Fast-draining soil

   Choose a soil that drains quickly. A succulent mix blended with pumice or fine grit drains better and makes the plant easier to grow. Because the roots run deep, use a pot with a drainage hole and a bit of depth.

4. 4Hold water when molting

   Lithops molt, pushing a new pair of leaves out from inside the old pair. This mostly happens from winter into spring, and you should hold off on watering until the old leaves have shrunk away. Watering partway through can put stress on the plant.

5. 5Summer rest and airflow

   Summer heat slows growth and puts the plant into dormancy, so keep watering to a minimum. Hot, humid air can cause rot, so give it a bright, shaded, well-ventilated spot. In winter, protect it from frost and keep it somewhere sunny, such as indoors.

6. 6When to repot

   You do not need to repot every year. Do it in October or November, during the growing season, when the plant has divided into a crowded clump, growth has slowed, or the soil has worn out. Its taproot runs deep, so use a pot with some depth. Trim old roots, plant into fresh dry soil, and hold off on watering for a while.

7. 7Choosing by the pattern

   The strength and layout of the pattern vary from plant to plant, so part of the fun is picking the one you like. Look for a firm top with no wrinkles, discoloration or damage as a sign of health. Compare pattern types too, such as selected forms with markings only in the center.

麗虹玉 (Lithops dorotheae)的常見問題

Q.Can beginners grow Lithops dorotheae?

A.It is considered a beginner-friendly variety. Give it good sun and airflow and keep watering modest and matched to the season, and it is an easy plant to grow.

Q.How often should I water it?

A.Rather than a fixed number of days, go by the season and how dry the soil is. Water mainly in the autumn growing season once the soil is fully dry, and hold back during molting and summer dormancy.

Q.Can I water while it is molting?

A.As a rule, hold off. Waiting without water until the old leaves have shrunk away and the new pair has taken over helps reduce stress on the plant.

Q.How big does it get?

A.It is a medium-sized lithops. It can divide and form a clump, so the pot fills up as the plant multiplies.

Q.Can I grow it indoors?

A.Yes, but sunlight comes first. Place it on a bright windowsill and make sure the air does not stagnate.

麗虹玉 (Lithops dorotheae)栽培的實用工具

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