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Gardening Know How Questions & Answers - https://questions.gardeningknowhow.comMy trumpet vine has never flowered! It is about 15 years old, it grows well and looks very healthy – easily covering 10 sq. ft. of wall-south facing, every summer. Would fertilizer help? It’s bloom or die time. Thank you.
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1 Comment To "trumpet vine"
#1 Comment By Downtoearthdigs On 07/26/2015 @ 12:54 am
I would guess that the nitrogen to phosphorus ratio is off. The soil may have an abundance of nitrogen, which would result in nice, healthy green growth but little to no blooms. Without the right amount of phosphorus, it will not bloom well. Bone meal is a great way to add phosphorus. You may be able to speed up flowering by pruning back the leaders to encourage more side shoots, where the flowers appear.