I have a well-established trumpet vine that refuses to flower. I have fertilied it, but to no avail. help?
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Answers:
Many vines will not flower if fertilized as the fertilizer triggers too much growth not allowing any leftover energy for flowering. This is especially true of wisteria. If your vine is in full sunlight, gets deep watering as opposed to shallow and has been in the ground at least three years, then you should be getting flowers. Lay off the fertilizer and see what happens next year.
It may be a sterile plant. Put another flowering one near it and it may start blooming. I have a neighbor who had a similar situation with his and when I put mine in and it bloomed his started to bloom as well.
Maybe it isn't getting enough sun on it . Could be getting too much shade...
Give us more details on the location and your area.
I had a Wisteria vine that only put out leaves never bloomed.
In my experience (and opinion):
1.) Trumpet Vines like nasty, low nitrogen soil. Stop fertilizing.
2.) Trumpet Vines are easily sickened and killed by pesticides.
3.) Trumpet Vines usually don't flower every year, but when they do, it's because they have been left alone and in full sun.
4.) Trumpet Vines do really well in nasty areas, like the side of the freeway because of #1,2,3.
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