Answer: Pre-emergent herbicides can be used in flower beds; read the label and be sure you get the right formula for the kinds of plants you have. (Some are for use only in woody ornamental beds, others are safe for the more tender herbaceous plants.) It can be difficult to find flowering perennials for a shady spot, but here's a list for you to choose from:
Ajuga, Alchemillia (lady's mantle), Anemone (windflower), Columbine, Asarum (wild ginger), Astilbe, Bergenia, Amethyst, Campanula, Cyclamen, Dicentra, Gentian, Helleborus, Hosta, Heucherella, Impatiens, Liriope (lily turf), Asiatic lily, Vinca, Viola, Primrose and Saxifraga. Good luck with your shade garden!
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