Applying a layer of mulch will help retain the moisture. Gardeners' World recommends growing Gardenia jasminoides indoors for its scent, but is best avoided if you have pets as it's toxic to both cats ...
Morris Hankinson, director of Hopes Grove Nurseries, also recommends trachelospermum jasminoides (better known as star jasmine, available from £23.99 at Crocus). 'No moon garden would be complete ...