When to plant Bee Balm?

Bee balm thrives in full sun or partial shade, though flowering is strongest with at least six hours of direct sunlight daily. Choose a spot with good air circulation to reduce the risk of powdery mildew, a common issue with this plant. It prefers loam or clay soil that retains moisture without becoming waterlogged; avoid very dry or sandy sites. Before planting, dig in plenty of organic matter such as garden compost or well-rotted manure to improve soil structure and moisture retention. Plant bee balm in March, April, September, or October. Spring planting allows plants to establish before summer, while autumn planting takes advantage of warm soil and autumn rains. Dig a hole slightly larger than the root ball, set the plant at the same depth it was growing in its pot, and firm the soil gently around the roots. Space plants 50 cm apart to allow for their spreading habit—bee balm spreads via rhizomes and will form clumps over time. Water thoroughly after planting to settle the soil and eliminate air pockets. Apply a 5 cm layer of organic mulch such as bark chips or garden compost around the base, keeping it clear of the stems to prevent rot. This helps retain moisture and suppress weeds. If planting in autumn, mulching also provides a little extra winter protection for young plants, though established bee balm is fully hardy in temperate Europe. Check soil moisture regularly during the first growing season until the roots are well established.