Is anybody aware of a chart

[subdood_ky_z6b]

Not a chart, but some useful info that might help-

Optimal field grafting times in spring

There have been many threads here on when to graft, but one thing I would like is a list based on how far along the leaves/buds are on the stock. The temperatures are also important but that information is more well-known; I’ll include it here anyway (highs for the day are what is listed). Note that temps are callus temps and do not take into account the fact that the sun may be warming up the graft unions well beyond these ranges. The sun can add 20F to the air temperature and will significa…