蜘蛛網長生草

蜘蛛網長生草的基本資料

栽培難度

適合新手

壽命

多年生。開花的蓮座在結實後枯死，由子株更新。

體型

蓮座直徑約1～2公分。群生時形成直徑30公分以上的席狀。

澆水

在春季和秋季生長期施少量緩效肥或液體肥。

日照與擺放位置

除盛夏外在戶外陽光充足的地方栽培。因不耐熱，梅雨季至夏季應在不淋雨、通風良好的半蔭處越夏。深秋開始葉片變紅。

澆水

春秋型，分別於春季（3～6月）和秋季（9～11月）生長。生長期內土壤表面乾燥時充分澆水，梅雨結束至夏季休眠期應減少澆水。因水分過多易引發腐爛，必須避免過度澆水。

溫度與越冬

耐寒性很強，據說至少能耐-12℃左右。但是葉尖蜘蛛網狀的毛會積聚雨水易腐爛，冬季要避免長期淋雨。

培養土與換盆

使用混入砂粒排水良好的培養土。不喜歡肥沃的土壤。每2～3年換盆一次，在生長期前或初期進行。

繁殖方法

用分株或將匍匐莖先端的子株切下進行扦插繁殖很容易。適期為3～5月和9～10月。

病蟲害與注意事項

開花的蓮座會枯死，要及時清理花莖促進子株生長。莖葉上易生介殼蟲和蚜蟲，根部可能感染根粉蚧。

關於蜘蛛網長生草

Cobweb houseleek (Makiginu) is a beginner-friendly Sempervivum whose small rosettes are joined by web-like white threads. Cold-hardy and native to European mountains, it grows from rosettes of 1 to 2 cm into mats over 30 cm wide. Learn the care basics and how to choose a plant.

開始照料蜘蛛網長生草前需要了解的7件事

1. 1Light and airflow

   Choose a bright, well-ventilated spot outdoors. With too little light the rosettes stretch out and lose their tight shape. A place sheltered from driving rain, such as under the eaves, makes care easier.

2. 2Water on the dry side

   Water thoroughly only after the soil has dried out completely, until it runs from the drainage hole. Water pooling between the leaves can cause damage, so pour at the base instead of over the top. Erring on the dry side is safer than overwatering.

3. 3Free-draining soil

   Use a fast-draining mix. Commercial succulent and cactus soil blended with pumice or sand keeps water from lingering around the roots. Because the roots are shallow, a shallow pot works well.

4. 4Watch for summer humidity

   Since it grows wild in high mountains, it is not at its best in the hot, muggy weather of the rainy season and summer. Move it to a bright, airy place out of the rain and water sparingly. Removing outer leaves that have been damaged by stuffy conditions helps keep the rest of the plant healthy.

5. 5Wintering outdoors

   It is very cold-hardy and can spend the winter outdoors. Growth slows in winter, so cut watering back even further. Keeping the pot under the eaves prevents the soil from staying soaked by rain or melting snow.

6. 6Repotting and dividing

   When offsets crowd the pot, it is time to repot or divide. Spring or autumn, when the weather is mild, is the best time; simply detach an offset from its parent and plant it to make a new one. A rosette that flowers dies after setting seed, so let the offsets carry the clump on.

7. 7Choosing a plant

   Look for tight rosettes with healthy leaf color and no melting or blackened outer leaves. The amount of white webbing varies with conditions and season, so do not judge a plant by webbing alone. A plant that already has offsets is also easier to keep renewing.

蜘蛛網長生草的常見問題

Q.Can a beginner grow cobweb houseleek?

A.Yes, it is considered beginner-friendly. Give it a bright, airy spot, a free-draining soil, and water on the dry side, and it is easy to keep. Just watch out for stuffy, humid weather in summer.

Q.Do I need to bring it indoors for winter?

A.It is very cold-hardy and can stay outdoors through winter. However, soil that stays wet from rain or melting snow can cause damage, so a spot sheltered from rain, such as under the eaves, is a safer choice.

Q.Is it my fault if a rosette dies after flowering?

A.No, this is normal. A cobweb houseleek rosette that flowers will die after setting seed. If offsets are growing beside it, they take over and keep the clump going.

Q.Why has the white webbing become sparse?

A.The amount of webbing changes with conditions, the plant's health, and the season. A weak plant from too little light or stuffy air may show less of it, so it is worth reviewing its position and ventilation.

Q.How large does it grow?

A.A single rosette starts at about 1 to 2 cm across. As offsets multiply, the clump can spread into a mat of 30 cm or more. A shallow, wide pot suits it well if you want to enjoy that spreading habit.

蜘蛛網長生草栽培的實用工具

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