I planted new hydrangeas this year. They haven't blossomed yet and the leaves have turned purple. Do you know why? What can I do?
Certified GKH Gardening Expert
Immature hydrangea leaves often have a purplish cast. Also, it is possible that it is caused by a lack of nutrients. Have the soil tested. It may be a phosphorous deficiency. Purple leaves/foliage are often a sign for this deficiency. Regardless, adding a little phosphorous will not hurt the plant. In fact, it may even help with getting your shrub to bloom. Here is more information: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm