Luc what a lovely thing to think of. I've done it but it was years ago. Martha Stewart had a lot of instructions for it so you might want to try there, or this google produced lots of results
"forcing branches" spring
I think Easter might be on the early side this year for it to be successful with apple in time for easter, but you could always do apple and crabapple for a little later in the season to honor your grandparents. You might have better luck with something earlier flowering like Forsythia. I've done it with various types of spring-flowering species. I would say when you find instructions you're happy with, try a few different types of tree/bush, in case some are more successful than others, and because each will have its own schedule. If you want something earlier, try the bushes that flower the earliest too.
This was posted a while ago, do you have some started? |