How to Fertilize weigelia?
For optimal growth, 'old fashioned weigela' benefits from fertilization with balanced nutrition fertilizers high in phosphorus to promote vivid blooms. Apply a granular, slow-release formula in early spring at the onset of new growth, and again mid-summer, following package instructions for quantity. Over-fertilization can harm 'old fashioned weigela'; too much nitrogen, for example, can reduce flowering. In colder regions, cease fertilization by late summer to avoid new growth susceptible to frost. Adjustments are rarely needed, but poorer soils may necessitate an additional light feeding. Always water 'old fashioned weigela' thoroughly after fertilizing to distribute nutrients and prevent root burn.
