This is the fifth year I have had my trumpet vine in, it has never flowered and does not look like it will flower this year. It is in a very sunny location, has water and the greenery is beautiful and lush. It does receive fertilizer when I fertilize the lawn, is that why it does not flower? Thank you for your assistance. Debbie.
Certified GKH Gardening Expert
It can take up to 10 years for a Trumpet Vine to bloom.
This link will help you.