By Imac2402
North Yorkshire,
United Kingdom 
I ahve a two year old Black Hamburg grapevine in my greenhouse, it's about 6 feet tall and was growing quite quickly again, now mos of the leaves have brown edges, what am i doing wrong, it gets plenty of water and the door is always open ?
6 Jun, 2010
Answers
Thanks, Seaburngirl, i'll give it a go.
7 Jun, 2010
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this sounds like sun scorch. first thing in the morning excess water drips off the leaf edges and then strong sun through the glass will scorch it. reduce the watering slightly and see if new leaves are happier.
6 Jun, 2010