Here is my bouganville,
I bought it two months ago. I removed all dry flowers, so none remain. It does not seems to suffer since it is producing new trees, but: No flowers, and new born parts are lighter green.
What am I doing wrong?
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1Too frequent watering, or too frequent pruning. – Polypipe Wrangler Jul 20 '22 at 01:04
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Based on your description and the photo (lush foliage) you do supply too much fertilizer and water.
For bougainvilleas it is best to think of them having the same watering requirements as Mediterranean plants such as lavender and delay watering until the soil is somewhat dry to a winters depths.
This emulates their natural preferred flowering conditions (they flower during the dry season in their native South America) and the water stress triggers the develop of the colourful flowers (and bracts).
From this source.
In case you are in a climate zone similar to USDA Hardiness Zone 9 or cooler, also make sure to place your Bougainvillea on the hottest and most sunny spot in your garden.
Gyrfalcon
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1You should be more careful on your statements: you do not known where the OP is living, so "the hottest and most sunny spot" may not be correct. – Giacomo Catenazzi Jul 21 '22 at 15:11
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@GiacomoCatenazzi Agree. OP is from Italy, but such statement should be limited. Edited. – Gyrfalcon Jul 21 '22 at 23:13