In terms of flowers per square inch nothing beat the Leatherwood (Eucryphia). When they are in full flower they are stunning, with their pure white flowers standing out against the dark green leaves. If the weather is hot the flowers will turn brown quickly but in a cool, overcast August like this one, they will survive for a good fortnight. The flowers always seem to be covered in wasps but, strangely, never bees. The best variety is Eucryphia x nymanensis, of which we, greedily, have four in this garden. Two are in the shade and they tend to burst into flower a week or two after the others and keep their flowers for longer.