Flowering generously from May to June, weigela is a reliable, hardy, deciduous shrub. Growing 4-5ft high and across, there are two main divisions: varieties of Weigela florida and a range of hybrids. Most varieties flower best is planted in full sun. Shield them from strong wind, too, which can damage flowers and "burn" soft, new leaves. Encourage vigorous growth by setting plants in well-drained soil, including chalk, enriched with plenty of well-decayed manure.