Frosted Buds Regrowth.

When grapevine buds are frosted in the spring all is not completely lost. The bud is in fact a compound bud containing three potential shoots so if the main bud gets damaged, in this case by frost, secondary buds can break as replacements.


Here is a good example. A month ago this spur looked like it would die out but here regrowth will save the spur.

This variety is Regent and is generally not fruitful on the secondary buds so I would not expect grapes to form on this spur. Even if they did they would be so much later than the existing inflorescences that they would need to be removed to achieve an even crop.

Of course the spur is saved for potential bunches next year.