古倫木（宇宙樹）

古倫木（宇宙樹）的基本資料

栽培難度

適合新手

壽命

多年生。莖幹粗壯，可長期養護。

體型

高度60～90公分・寬度30～60公分

澆水

生育期每3個月施用一次緩釋性肥料

光照與擺放位置

盡量在光線充足的地點養護。光線不足會導致徒長，植株鬆散難看。夏季避免直射日光，在明亮的半陰處保持良好通風管理。

澆水

盆土乾燥後充分澆水。注意盛夏時高溫悶熱，冬季減少澆水。

溫度與越冬

不耐寒，11～3月在明亮的室內管理。國內資料以5℃作為存活的最低溫度參考。

肥料

缺肥時下位葉片會轉黃脫落。4～10月生育期每3個月施用一次緩釋型化學肥料。

繁殖方法

可通過葉插、莖插、截幹繁殖。切口應晾乾後再進行扦插。

病蟲害與注意事項

容易與霍比特混淆。筒狀先端凹陷的葉片為古倫木，向外反捲的葉片為霍比特。本品種未進行品種登錄，可自由進行扦插繁殖。

關於古倫木（宇宙樹）

Crassula ovata 'Gollum' (Space Tree) is a jade plant sport with tubular leaves that dip like suction cups at the tips. The tips turn red in the cold and the trunk thickens. A beginner-friendly succulent that reaches 60–90 cm tall.

開始照料古倫木（宇宙樹）前需要了解的7件事

1. 1A Bright Spot

   Gollum likes plenty of light, so an outdoor sunny spot or a bright indoor windowsill suits it well. With too little light the stems stretch and the plant loses its compact shape, so give it as much sun as you can. Strong midsummer sun and hot afternoon light can scorch the leaves, so adjust the position or add some shade if needed.

2. 2Water When Dry

   Wait until the soil is completely dry, then water thoroughly until it runs out of the drainage hole. The trunk and leaves store water, so it is fine to keep the plant on the dry side. Empty the saucer each time to help prevent root rot.

3. 3Well-Draining Soil

   Use a free-draining mix. A ready-made succulent and cactus soil is the easy option, or you can blend akadama with pumice or perlite yourself. Choose a pot with a drainage hole, and pick a stable one that can support the thickening trunk without tipping over.

4. 4Winter Care and Red Tips

   The red leaf tips that appear in the cold are one of this variety's charms. In winter, water sparingly and keep the plant away from frost and freezing. When the cold gets severe, move it to a bright spot indoors. Once spring warms up, reintroduce it to outdoor sun gradually.

5. 5When to Repot

   Repot when the roots fill the pot and water starts to soak in poorly. Spring or fall, when the weather is mild and the plant is growing, is a good time. Let the soil dry out beforehand, shake off some of the old soil, and move the plant into a pot one size larger.

6. 6Pruning and Shaping

   Cutting back overgrown branches during the growing season tidies the shape and encourages finer branching. Let the cut ends dry well, and the trimmings can be rooted as cuttings to make new plants. Shape it gradually, keeping the gnarled character of the thickening trunk.

7. 7Choosing a Healthy Plant

   Look for a plant with firm leaves that are rolled into tubes and a trunk that does not wobble. Avoid plants with wrinkled or darkened leaves or a soft, mushy base. Check the photos and description on the listing, and message the grower if anything is unclear.

古倫木（宇宙樹）的常見問題

Q.Can a beginner grow it?

A.Yes, it is rated as beginner-friendly. Provide bright light and well-draining soil, and water only after the soil has dried, and it should grow reliably.

Q.Is Space Tree the same as a jade plant?

A.Gollum is a sport of the jade plant (Crassula ovata) and is also sold as the Space Tree. Unlike a standard jade plant, its leaves roll into tubes with a suction-cup-like dip at the tip.

Q.How big does it get?

A.It can grow to about 60–90 cm tall. As a perennial it keeps growing for years while the trunk thickens, and you can cut it back during the growing season if it gets too large.

Q.Are red leaf tips a sign of disease?

A.Red tips in cool weather are a normal trait of this variety and usually nothing to worry about. If the leaves turn wrinkled, dark, or mushy, however, consider overwatering or cold damage and check the plant's conditions.

Q.Can I grow it only indoors?

A.Yes, if you have a bright windowsill. Low light makes the stems stretch, so in warm weather it helps to give the plant some outdoor sun and airflow now and then to keep it compact.

古倫木（宇宙樹）栽培的實用工具

在圖鑑中詳細了解古倫木（宇宙樹）

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