Annuals and Perennials
- Spring and summer-flowering perennials can be divided and transplanted after blooming. In zones 5 and warmer: divide overgrown plants and discard the extra, or transplant during the coolest part of the day and preferably in the shade.
- Trim and fertilize your containers – they still have time for another show.
- Deal with late-season pests – such as aphids, whiteflies, and spider mites – with a spray of water from the hose.
- Treat diseased plants, and remove diseased foliage before leaves drop.
- Prune back vigorous climbers such as wisteria, and train them around trellises while the growth is soft.
- Propagate plants by collecting seeds, taking cuttings, or layering.
- Continue deadheading! For prolific bloomers like coreopsis and catmint, shear them lightly to encourage more blooms.
- Label your plants with garden stakes, particularly perennials that die down to the ground in the fall.
- In colder zones 1-3, begin moving your houseplants indoors to acclimate them.
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