look and see if you have something eating on them I. I had
Green caterpillar on mine .They where eating them up.

Mine looked like that so I dug it up. Well one I did, the other got a good hair cut, almost down the the ground. Now its seven foot tall and begging for another trim. I find that they need cutting back otherwise they get too woody and not enough new growth. The leaf drop might be the usual excuse, the weather. Maybe the land is a bit wet for it at the moment.

Thanks for the suggestions. When the rain stops I shall have a closer look and see if there are any caterpillars about and give it a trim at the same time. Maybe......

Useful question and answers.
I'm adding to GoYpedia Climbing Plants. :o)

I had this problem - mine looked as if autumn had arrived in June. I think it was because I had just left it to its own devices. I have found that it likes a really good cut back - so now I just chop it back to a couple of feet from the ground in the late autumn, and it hasn't looked back. (It's a halliana, growing over an arch)

Thank you Mel, I gave it a mini chop today but will cut it back more later in the season.

I'm not as strict as that every year, Pam - about every 2-3, but I do cut back the top growth regularly. The arch blew down last winter, so I had to chop it right back and wondered how it would fare. It obviously loved it!

Thanks, I'll post pics to let you know how it gets on :))