Help with a grape vine

[OverWyreGrower]

We've "rescued" a grapevine from Freecycle (Black Hamburgh) not more than 4 years old.

We dug it up (huge root ball - although we have a feeling we still didn't get all of it) and planted it in a large pot filled with compost and well rotted manure and watered it in (strung it on the wires for our existing vine in the greenhouse).

24 hours later, all the leaves have wilted and show no signs of getting better

Is there anything we can do? Have we finished the poor little thing (about 4 ft tall!)

Any help appreciated!

Thanks

OWG

[peter]

Best moved dormant I'm afraid.

However, all is not lost, just keep it from drying out or getting soaked.

Whatever you do do NOT cut it at all unless during the deep mid-winter as it will bleed to death.

[OverWyreGrower]

So, just keep the soil moist and the greenhouse well ventilated and my fingers crossed?

Have no need to prune it, as it apparantly it only fruited slightly, and all these have now gone

Thanks

OWG

[Allan]

You don't give a sick plant a slap-up meal. Repot in a well=drained compost e.g. plenty of gritty sand, some loam or soil and a touch of garden compost. Alternatively JI 1 with extra sand. keep it from drying out but not over-watered and soggy.
Black Hamburg is at its best in a heated greenhouse e.g. at Hampton Court, not one for outdoors unless very warm and sheltered.
Let it rest until December, then carefully cut back anything that is obviously dead. Come late spring you should see at least some buds burst into life.
Allan