Feed. Fertilize roses (Rosa spp. and cvs., Zones 3–9), lilies (Lilium spp. and cvs., Zones 3–10), and dahlias (Dahlia spp. and cvs., Zones 8–11) to encourage continuous growth and blooms.
Water some more. Ensure that newly planted trees, shrubs, perennials, and annuals are getting adequate water.
Deadhead lavender (Lavandula and cvs., Zones 4–9). Remove spent lavender flowers to tidy up shrubs.
Pull tattered foliage. Remove spent and dormant late spring foliage from perennials.
Prune Japanese maples (Acer palmatum var. dissectum, Zones 5–9). Late summer is a good time to lightly prune summer-dormant Japanese maples.
Jason Jorgensen is a landscape designer in Seattle, Washington.
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