I know I have at least 2 different varieties of angel trumpets. The purple I know seeds and I have to start from scratch every year with that one. But the variety that does not seed I would like to take some cuttings and root them. I have no idea when or how to do this. Please help.
the Brugmansia will root in water. Choose the cutting from a part of the plant that shows the white pre root nubs.(Little white dots)
Use room temperature pre boiled water in a clean glass, I sit it on a window sill.(three or four inches of water is fine).
Stick the cutting into the water (strip of most of the leaves- you can leave a couple of small ones on it if you like).
Within a few days the little white dots you see on your cutting will become prominent and commence to turn into roots.
Plant at any time from then on, into well draining but moisture retentive medium. The cutting will fill the little pot quite quickly, then you pot it on, or plant it out.
Here in Australia you can just throw the bits down on the ground and they will root on damp soil.
Many gardeners just shove a cutting in under the mother plant and that works.
You can make seeds too from those two Brugmansia ...but that is another story
Good luck ...I hope some Brug growers from your area may pop in to help you .
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