Up to what temperatures is the silk tree hardy?
The sleeping tree can withstand temperatures down to minus 15 degrees for a short time - at least if it is a few years older. Younger and freshly planted silk trees must therefore be protected from frost or hibernated in the bucket indoors.
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So that the Silk tree can become so hardy that it can withstand very cold temperatures, do not allow it to be too late in the year plant out. You should keep young plants in the tub for the first few years anyway.
Choose a location where the sleeping tree is bright and sheltered from the wind. Places in front of walls or other trees are good, but you must ensure that there is sufficient distance.
Protect from frost outside for the first few years
Young silk trees need good frost protection in winter if they have been planted outdoors. Cover the soil with a thick layer of leaves, clippings, or straw. This not only protects the earth from drying out, but also prevents the soil from freezing through.
Wrap the trunk of the silk tree with Garden fleece, Jute or sticks to protect it from frost.
Do not let it dry out even in winter
In the first few years, the roots of young silk trees do not reach deep enough into the ground to provide themselves with moisture. This also applies to freshly planted older silk acacias.
On frost-free days you should therefore water the silk tree occasionally when the winter is very dry.
Hibernate the silk acacia grown in a bucket in a frost-free place
Since the young silk trees are much less hardy than older plants, it is best to keep them in a tub for the first few years. You can overwinter this in a cool, frost-free place in winter.
Suitable places for wintering are
- bright garden houses
- unheated winter gardens
- Corridor window
- Entrance areas
The temperatures at the winter location should not fall below five degrees. They must not be much warmer than ten degrees.
Bring silk tree into the house in good time
If you pull the sleeping tree in the bucket on the terrace, bring it into the house in good time in autumn. At the latest when the temperatures have dropped to five to ten degrees, it's time to move.
After winter, the silk tree in the bucket is slowly brought back into a warmer environment and accustomed to the new location for hours.
Tips
The leaves of the silk tree do not contain any toxins. It is different with the fruiting bodies and seeds of the sleeping acacia, which are called poisonous get ranked. The sleeping tree is therefore not well suited for families with children or pets.
