Why Are My Container Grown Climbers Not Thriving?

Question

Honeysuckle, passionflower, quince planted last year in John Innes no 2 plus drainage stones. Fed regularly

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Answer 1

When these grow in containers it can deplete nutrients faster. It might be that they need fed more often. Make sure that they aren't ever going completely dry. This can slow things down a bit. Start with testing your soil for deficiencies or pH issues. That's the best place to start:

https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/testing-soil.htm