Mimosa leaves fold up when touched
Not just the spherical ones Mimosa flowers exert a special charm on many gardening enthusiasts. The leaf is also very decorative because of its feathery appearance. It also has the peculiarity of folding up when it is mechanically touched or when exposed to heat.
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If you touch a leaf, a chain reaction often starts. First the touched sheet folds, then all other sheets follow. You remain in this position for about half an hour. Then they unfold again. The same thing happens when you approach the leaf with a lit match or lighter.
If the ambient temperature is below 18 degrees, the leaves no longer react to the touch stimulus.
This is why you shouldn't touch the leaf of a mimosa too often
The process of folding it up robs the mimosa of a lot of strength. There is Mimosa specieswhich recover very poorly from the effort of folding and unfolding. You should therefore touch the leaves as little as possible and not expose them to the effects of heat from lighter or matches more often.
Wind and drafts have no effect on the leaves
While the stimulus on the leaf is triggered by lightly touching it with objects or fingers, wind and drafts have no effect on the leaves.
It is not yet known why this is so.
When the leaf of the mimosa turns yellow
Sometimes they change color Leaves of mimosa yellow. This is an indication of jaundice. It is triggered by too much moisture. Then keep the plant drier.
If small webs appear on the leaves, the mimosa is from Spider mites infested. Immediate control is necessary.
Tips
Mimosas love to be cared for outside in the summer. You should ensure a sheltered place. The mimosa does not tolerate direct midday sun well.
