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Weed
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After Iberis and Dianthus finish blooming, shear back half way.
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Cut stalks of Iris to the ground. Let the leaves remain until fall.
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Pinch back Chrysanthemum and all members of related families. Apply liquid fertilizer.
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Remove criss-crossed or damaged branches of Malus (Crabapple), Cornus (Dogwood), Prunus (Cherry and Plum), and Pyrus (Pear).
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Pinch back late summer perennials for height control: Sedum 'Herbstfreude' (can cut back to ½ when about eight inches) Monarda, Aster, Boltonia (by ½). Pinch off tips of Perovskia when twelve inches tall.
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Cut off any winter-killed tips on Lavendula
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Cut back Oriental Poppy stems immediately after flowering.
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Shear the following perennials to the ground after bloom: all floppy Geranium and Nepeta (if you prefer a more tailored garden!)
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Deadhead Campanula, Platycodon, Hemerocallis, Phlox, Scabiosa, Dicentra.
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Fertilize Rosa
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Does the garden and its plants look like they need water???