This cherry has to be the perfect tree for a small garden.  For three weeks in spring its dark, corky branches are covered in pale-pink cherry blossom. Its crooked twigs and serrated leaves remain interesting for the rest of the year and then, in the autumn, the foliage erupts into reds and oranges.  Although it is a tree it is slow-growing, and you can keep it pruned to a more manageable 1m or so tall.  You’ll find it on sale in most garden centre chains and see poorly-grown specimens in too-small faux-terracotta plastic pots everywhere.  Don’t let that put you off.  Well-grown and nurtured, this is a magnificent plant.