Gardeners in Middle Tennessee (where The Garden Bench calls home) know that August can be brutal, and some days it’s best to stay inside. Here’s a tip: Get out early – before 7 a.m. if you can – and get those necessary tasks done. Then enjoy the rest of the day indoors, and remember that cooler days will be here soon.
Early in the month
Keep deadheading daisies, coneflowers, black-eyed Susans and other summer-flowering perennials.
Many things stop blooming when it’s 90 degrees and above. As things cool down slightly, flowers in the beds and vegetables in the kitchen garden should be blooming again. Provide ample water if it doesn’t rain.
Continue to watch for Japanese beetles. Pick off any you find on your roses or other prized plants, and plunk them into a bowl of soapy water.
Save your prized tomatoes from the birds. Pick them before they are fully red and let them ripen indoors.
If petunias are looking scrappy, cut them back and provide a light dose of fertilizer. They should soon re-bloom.
Continue to harvest and use basil frequently to keep the plant from setting seed too early.
Begin cleaning up vegetable beds. Remove dead or dying foliage and any rotting vegetables. A tidy garden bed means fewer places for destructive insects to overwinter.
Watch for spider mites on roses, which thrive in hot, dry weather and can quickly defoliate a rosebush. A strong spray of water on the undersides of the leaves every two or three days for a week should help keep them under control.
If you saved your potted amaryllis bulb from last winter and it has spent the summer outdoors, move it to a cool, dark place and let it dry out. Amaryllis needs a dormant period before it blooms again next winter.
There’s no need to water your lawn every day. Experts advise deep watering every few days rather than a shallow sprinkling every day.
Try to keep ahead of the weeds. But if you can’t, at least snip or pinch off the tops to keep them from flowering and setting seed.
Later in the month
Late summer is a good time to thin iris beds. Cut back the foliage, dig up the rhizomes and brush off as much dirt as you can. Discard any roots that are rotting or soft, then replant the rhizomes.
Avoid planting new trees and shrubs in the hottest part of summer. Be sure that trees, shrubs and perennials planted this spring are receiving enough water during long hot spells.
Some summer herbs can be frozen to use later. Try freezing fresh sprigs of parsley, oregano, sage, tarragon and dill. Rinse the herbs and pat them dry, then place them in separate freezer bags or containers with tight-fitting lids. Use them within four months.
Begin gathering seeds of annuals or vegetables to plant next year. Dry seeds thoroughly and store them in a place that’s cool and dry. Be sure to label them before you put them away.
Plant a cool season kitchen garden late this month — spinach, greens, kale, lettuces and other favorites. Keep beds or containers watered as seeds sprout, and watch for late-summer insect pests.
Filed under: Garden calendar, Garden Tips & Tasks, Grow a Garden | Tagged: black eyed susans, cool-season garden, deadheading, dry seeds, flowers, herbs, kitchen garden, parsley, petunias, rudbeckia, Tomatoes, vegetables, Zinnias | Leave a comment »