Although I have had my trumpet vine for several years, it has never had flowers. It grows well and has many vines, some feet long. What can I do to encourage the plant to bloom.
There are a few reasons why these can be reluctant to flower, including too much fertilizer, or not enough sunlight. Here is an article that will help you to figure out what is going on: https://www.gardeningknowhow.com/ornamental/vines/trumpet-vine/trumpet-vine-no-blooms.htm