极光（虹玉锦）

极光（虹玉锦）的基本数据

养护难度

适合新手

寿命

常绿多年生（寿命数据较少）

体型

缺少体型数据

浇水

在春季和秋季生长期施加少量缓效肥料或液体肥料

光照和摆放位置

春季和秋季应在户外光照充足的地方养护。由于不耐高温高湿，梅雨季至夏季应放在不被雨淋的通风半阴处渡夏。秋季转凉后开始着色。

浇水

属春秋型植物，在春季（3～6月）和秋季（9～11月）生长。生长期当土壤表面干燥时充分浇水，梅雨后至夏季休眠期应减少浇水且避免雨淋。

温度和越冬

据说母本虹玉只要避免霜冻就相对耐寒。冬季在不受霜冻的地方管理。

土壤和换盆

使用排水性良好的土壤，每1～2年在生长期前期或初期换盆一次。株型过高可在此时进行修剪。

繁殖方法

通过茎插法繁殖。茎插能顺利生根，但叶插几乎无法成功。插穗后不宜过度浇水，保持略干燥的管理方式。最佳时期为3～5月和9～10月。

病虫害和注意事项

茎叶易遭介壳虫和蚜虫危害，根部可能感染根粉蚧。据说虹玉接触口腔或皮肤时可能引起刺激，应将其放在儿童和宠物无法接触的地方，操作后洗净双手。

关于极光（虹玉锦）

Sedum rubrotinctum 'Aurora' is a variegated jelly bean succulent with plump, bean-shaped leaves. A beginner-friendly evergreen perennial, with care tips and FAQ.

开始养护极光（虹玉锦）前需要了解的7件事

1. 1Bright spot, good airflow

   A sunny spot outdoors or a bright windowsill suits it best. With too little light the stems stretch and the leaf color fades, so give it as much sun as you can. The variegated leaves scorch more easily, though, so shade it from harsh midsummer sun.

2. 2Water after it dries

   Water only after the soil has dried out completely, then soak it until water runs from the drainage hole. The leaves store water, so constantly damp soil invites root rot. Cut back in summer and winter, when growth slows.

3. 3Free-draining soil

   A ready-made succulent and cactus mix works well. If you blend your own, use plenty of free-draining material such as akadama or pumice. Choose a pot with a drainage hole, which helps prevent overwatering.

4. 4When to repot

   Repot in spring or autumn, when the plant is actively growing. Do it when the pot is full of roots or the stems have grown long and untidy. Hold off watering right after repotting and start again after a short pause, which helps protect the roots.

5. 5Summer heat, winter frost

   Hot, humid summers can cause stuffiness, so move it to a bright, airy spot with partial shade and out of the rain. Frost and freezing damage it in winter, so keep it under eaves or in a bright room. As the weather cools from autumn into winter, the leaves take on more red.

6. 6Choosing a plant

   Look for plump, firm leaves with no dark patches, wrinkles or translucent areas. Check that the stems are compact rather than stretched, and that the variegation is to your taste. The leaves drop easily, so handle the plant gently once it arrives.

7. 7Propagate by stem cuttings

   Leaf cuttings rarely take, so propagate by cutting a stem and planting it. Let the cut end dry before setting it in free-draining soil. Occasionally a plain green shoot appears as the variegation fades, so choosing well-variegated stems for cuttings helps keep the plant's look.

极光（虹玉锦）的常见问题

Q.Can a beginner grow it?

A.It is rated as beginner-friendly. The basics are good light, airflow, and watering only once the soil has dried. If you watch out for summer stuffiness and winter frost, it is an easy succulent to keep.

Q.Why do the leaves keep falling off?

A.The bean-shaped leaves are loosely attached and can drop with a light touch or bump. Overwatering or too little light can make it worse, so check its spot and watering. Fallen leaves rarely grow into new plants.

Q.Are red leaves a sign of disease?

A.Turning red in cool weather or bright light is a natural change often seen in this group of plants. If instead the color fades to green and the stems stretch, it may be a sign of too little light.

Q.How does it differ from Niji no Tama?

A.Aurora is the variegated form of Niji no Tama (Sedum rubrotinctum), and its variegated leaves set it apart from the plain form by color. The biggest practical difference is propagation: Niji no Tama grows easily from leaf cuttings, but Aurora rarely does, so it is propagated from stem cuttings.

Q.How do I get it through winter?

A.The key is to keep it away from frost and freezing. In cold weather, move it under eaves or into a bright room and water sparingly so the soil stays on the dry side. Adjust its spot to suit the winters where you live.

极光（虹玉锦）种植的实用工具

在图鉴中详细了解极光（虹玉锦）

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