DARK Purple Lilac Planting
What is the best DARK Purple Lilac to plant in Catonsville, MD? When would be the best time to plant?
Baltimore County Maryland
There are many species and cultivars of lilac. Syringa vulgaris, is the common lilac. This species can be susceptible to powdery mildew, a fungal disease. There are different species of lilacs and the reblooming lilacs (Bloomerang series, compact growth habit and flower, fragrance and second bloom is modest)) that are resistant. Make sure the plants are in full sun with adequate air circulation to reduce humidity levels. Pruning for better air circulation may help https://extension.umd.edu/hgic/topics/powdery-mildew-trees-and-shrubs
Take a look at the attached link for more information on lilacs and cultivars including flower color. You may want to contact your local nursery for more information. They are best planted in the spring. https://extension.unl.edu/statewide/douglas-sarpy/pdfs/ce/resources/ce-g1860-lilacs.pdf