白牡丹

白牡丹的基本資料

栽培難度

適合新手

壽命

多年生（壽命資料較少）

體型

蓮座直徑5～7厘米，株高約20厘米以內

澆水

在春季和秋季生長期施用少量緩釋肥料

光照與放置位置

全年在光照充足、通風良好的地方栽培。梅雨季節要避免淋雨，盛夏時宜放在午後遮陰的地方。

澆水

為春秋型生長植物。生長期間土壤乾燥後澆透水，夏季和冬季減少澆水次數，保持乾燥。

溫度與越冬

耐寒性較強，在不受霜凍和寒風侵襲、葉片不凍結的條件下可在戶外越冬。受冷後葉緣著色更加明顯。

培養土與換盆

使用排水良好的培養土栽植，3～5月整理枯葉和根系後換盆。

繁殖方法

可用莖插繁殖，也可將脫落的葉片平放在培養土上進行葉插繁殖。當莖生長過長時可剪短重新整形。

病蟲害與注意事項

過濕或夏季悶熱易引起軟腐病，應及時清除枯死的下葉。高溫乾燥期需防治介殼蟲。

關於白牡丹

Hakubotan, ×Graptoveria 'Titubans': a beginner-friendly succulent with powdery blue-green rosettes 5–7 cm wide and tips that blush pink in the cold. Growing tips.

開始照料白牡丹前需要了解的7件事

1. 1Bright light, good airflow

   Choose a spot with bright light and good airflow. In too little light the stems stretch and the tight rosette loses its shape. Strong midsummer sun can scorch the leaves, so moving the pot to bright partial shade is a safe precaution.

2. 2Water only when dry

   Water thoroughly once the soil has dried out, until it runs from the drainage hole. The thick leaves store water, so overwatering is a common cause of root rot. Water at the base rather than over the rosette, since droplets can leave marks on the powdery coating.

3. 3Fast-draining soil and pots

   A fast-draining mix, such as a commercial succulent soil, suits it well. Use a pot with a drainage hole that is not too large for the roots, so the soil dries out at a steady pace. Unglazed terracotta dries quickly and is a forgiving choice for beginners.

4. 4Enjoying the winter color

   As the weather cools, the leaf tips turn pink or apricot. Giving the plant plenty of light and keeping water on the lean side helps the color develop. The color usually softens when it warms up, so enjoy it as a seasonal change.

5. 5Summer and winter care

   Hot, humid summers can cause stuffiness, so keep it in bright shade with good airflow and water sparingly. In winter, protect it from frost and freezing by moving it under eaves or to an indoor windowsill. Growth is centered on spring and autumn.

6. 6Repotting and restyling

   When the roots fill the pot, repot into one size larger in spring or autumn, during the growing season. Over the years the stem lengthens, the plant can reach about 20 cm, and lower leaves may drop, leaving it leggy. If that happens, cut off the top rosette and re-root it to restore a compact shape.

7. 7Choosing a healthy plant

   Look for plants with plump, thick leaves, an even powdery coating and a tight rosette. Avoid those with blackened lower leaves or thin, stretched stems. When it arrives, keep it in bright shade for a few days and then move it gradually into fuller sun.

白牡丹的常見問題

Q.Can beginners grow Hakubotan?

A.Yes, it is classed as beginner-friendly. Place it in bright light with good airflow and water only after the soil has dried. Just watch out for overwatering and stuffy summer conditions.

Q.Why aren't the leaf tips turning pink?

A.The color tends to appear as temperatures drop, so it is less noticeable in warm seasons or in low light. Plenty of sun and lean watering to keep the plant tight will help it color up.

Q.How large does Hakubotan get?

A.The rosette measures about 5–7 cm across, and as the stem lengthens the plant can reach around 20 cm in height. If it becomes leggy, you can cut off the top rosette and re-root it to tidy the shape.

Q.Can a fallen leaf be propagated?

A.The thick leaves come away easily when touched. Let a detached leaf dry for a few days, then lay it on dry soil without watering, and it may sprout roots and a new plantlet. Not every leaf will succeed, though.

Q.How many years can Hakubotan be kept?

A.It is a perennial, but there is little documentation on its lifespan, so no specific number of years can be given. Refreshing the plant through repotting and re-rooting the top rosette makes it easier to enjoy for a long time.

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