Non-flowering Trumpet Vine - Knowledgebase Question

Eastlake, OH
Question by DICANDKATH
June 16, 2002
I planted a yellow trumpet vine 3 years ago. It flourished very well the first year, growing approx. 8-10 feet. It has continued to grow each year. Now in its 3rd season, it has never bloomed!
It is attatched to a trellis, against a shed, facing east. We are in zone 5.
Can you give me some advice?


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Answer from NGA
June 16, 2002

0

Campsis radicans is a large vine that likes lots of sunshine, does well in average soil, and blooms on new wood of the season. One of the most common reasons for this vine not to bloom is pruning at the wrong time. It can be pruned back as hard as necessary in late winter or early spring, but should not be pruned during spring or summer because this will trim off the wood that would set the flower buds. Another reason for lack of bloom is overfertilizing; if you fertilize it, use a general purpose granular type such as 10-10-10 and do not exceed the label instruction amounts. Yet another reason for lack of bloom is less common but it does happen that individual plants are just slow to start and can take several years to become established and decide to bloom again. Let's hope this is the year for yours to really take off.

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