Trumpet Vine - Knowledgebase Question

Burlington Flats, NY
Question by barbron
July 11, 2002
i've had a trumpet vine for several years (variety not known) it grows well...usually 6 feet and very full and healthy but has never produced a flower or eva a bud...every year it dies down to the ground and the spring it grows all new..is there something i can do to make it bloom????? should i start with a new plant?? thank you


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Answer from NGA
July 11, 2002

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Individual specimens of trumpet vine or Campsis radicans can take a few years to settle in and begin blooming although some plants will bloom the first year; it is unpredictable that way. The plant does prefer a full sun location and will bloom the best there. It blooms on new wood of the season so the winter die back is not necessarily a problem -- many gardeners trim this vine back very hard in late winter or early spring to stimulate new growth and additional blooms. Do not prune it during spring or summer however, because this would remove blooming wood. This plant is hardy into zone 4 but if grown in an exposed or windy location it might benefit from a wind break and/or a thicker mulch over the root zone each winter. Finally, make sure you are not overfertilizing it, an over supply of nitrogen (particularly if combined with a less than full sun location) could cause an excess of foliage growth at the expense of flowering. I hope this helps you evaluate your plant. Maybe this will be the year it blooms for you.

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