I'm a little confused about what to do with the graft point of a plant. In watching Gardeners' World, I've heard it recommended more than once that the graft point should not be buried when planting. But I could've sworn there was one show where Monty Don said the graft should be buried (maybe for roses?) Is there any plant for which the graft should be buried? If so, when? Thanks!
Other plants (especially fruit trees) are grafted in order to control their vigour e.g. a pear tree on its own roots will grow very tall and take quite a few years to fruit. If it is grafted onto a rootstock that will restrict the vigour the resulting top growth will be less vigourous and will fruit earlier. If that graft is buried the top growth will produce its own roots and behave as if it had not been grafted, growing tall and taking a long while to fruit.
It used to be said that the graft of a rose bush should not be buried; however general practice nowadays is to bury the graft, this helps prevent windrock and the development of sucker growth fro the rootstock.
Gardening in Central Norfolk on improved gritty moraine over chalk ... free-draining.