Northern White-Cedar or arborvitae (Thuja occidentalis). I have scored a DNR grant for deer exclosures and am re-introducing this beautiful species to my 30 acre bog-riverine-wetlands complex. There is something wonderfully human-like in the white cedar's nodding form, smooth bark, and finger-like foliage. They have a very appealing child-like blond/green-eyed personality unusual for the plant kingdom. The ojibwe Indians considered them sacred and I can see why....

Looks like a papaya ....

I was going to say the same thing but waited. If it is something that you have planted in rows, 18" apart, then its got to be some garden veggies not morning glories. So, as Fatamorgana has suggested, it might be sweet potatoes. I have not seen anything other than morning glories with three-lobed leaves. Never planted sweet potatoe. Passiflora Incarnata has similar leaf shape, but I doubt that you planted that one.

Hi to all 3 of you, and thanks for the replies!!! Garden Nerd, never heard of the plant you grow so had to do a Google to see what it was. GreenLarry, hi there, think I recognise you from the EPS forum?? Coincidentally, we too have lost 2 greenhouses over the past few years during winter storms...very annoying to say the least and expensive in both cost and man (& woman!! ) hours to replace. Last time it was a 2yr old 16 x8 that was trashed so we decided enough was enough took the aluminium to the scrap yard to get back what we could for it. We re-used the toughened glass as we salvaged all but a couple of panes and went for a DIY wooden one attached to the side of the garage block. The wood cost a fiver, we already had the concrete blocks spare and spent a few £££'s on wood stain/screws/bolts etc. It hasn't moved so far!!!