Regional Gardening Reports :: National Gardening Association

Pacific Northwest

August, 2010
Regional Report

Water Containers Regularly

Keep container gardens well watered and fertilized. As the roots begin to fill up the container, water and nutrients are quickly depleted. Use a soluble plant fertilizer at half-strength and apply when the potting mixture is slightly moist.

Prune Back Flowers

Now is a good time to cut back many annuals such as alyssum and lobelia to encourage more blooms for late summer and early fall. Cut back the old plants by half and apply a granular, slow-release fertilizer. They will be in bloom again next month.

Prevent Spider Mite Invasions

Check landscape plants for spider mites, some of the most damaging hot weather pests. These sucking pests -- smaller than the head of a pin -- can be found in colonies and leave a fine webbing on the undersides of the leaves. Mites can be particularly bad in dark, dry places, such as the interior of evergreens. Spider mites will succumb quickly to a forceful spray of water and homemade soap sprays.

Give a Final Feeding to Perennials

Water the perennial and annual garden a day before you put down the summer's final application of granular fertilizer. Never fertilize a dry, stressed plant or it will suffer more stress. For some extra soil conditioning, add some compost at the base of plants after fertilizing.

Prevent Cucumber Bitterness

Cucumbers develop a bitter taste if the soil is not kept consistently moist. Harvest cucumbers for pickling whole when they are 2 to 4 inches long. Harvest for table use, when they're longer than 5 inches. Remove any overripe cucumbers to encourage continuous production.


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