Clematis Plants
Q.

clematis not blooming

Zone zone 5 ,but it is cold and windy even on the. south side | Anonymous added on September 21, 2016 | Answered

4 yr.old autumn clematis grows really well but no buds or blooms. What gives? The autumn clematis is planted in full sun, in good soil, by the porch for it to climb on. I have tied it up and it gets good moisture. It's growing beautifully but never flowers. I understand it blooms on new growth, so it gets pruned back in late fall. Help. Thank you.

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on September 22, 2016

You likely have an imbalance in your Nitrogen/Phosphorous levels. To much Nitrogen will cause lush greens and no flowers.
You can add a Phosphorous fertilizer like Bone Meal to help promote flowering.

Here is a link with more information.

https://www.gardeningknowhow.com/ornamental/vines/clematis/summer-blooming-clematis.htm
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/bone-meal-fertilizer.htm

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