Planted A Trumpet Vine About 10 Years Ago And It Has Still Not Bloomed.

Question

Gets sun about 4 to 8 hours a day.

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Answer 1

Trumpet vines do not bloom much if they are kept small or if they do not get enough sunlight, especially during the time when they produce flower buds in spring. They are very sun thirsty and would appreciate much more sunlight, like 8-10 hours instead of 4-8.