Regional Gardening Reports :: National Gardening Association

Pacific Northwest

September, 2006
Regional Report

Late-Summer Rose Care

Feed, water, and mulch roses now to keep them blooming well into the fall. This will protect them from drying out if hot weather persists. Use a fertilizer high in phosphorus, such as 15-30-15, to promote blooms rather than foliage.

Clean Up Garden Debris

When your veggie beds have finished producing, rake and clean them to remove spent foliage and other debris. Slugs, bugs, and disease pathogens prefer unkempt gardens to clean ones. By removing their favorite hiding places, you'll reduce the amount of insect damage and disease in your garden for the coming crops.

Prune Flowering Shrubs

After flowers are spent, prune back summer-blooming shrubs, such as escallonia and viburnum. Pruning too late in the fall will remove future flower buds and encourage stem growth that won't have time to harden before the weather turns cold. As you're reducing the height of tall shrubs and removing errant branches, be sure to thin excessive growth in the center of the shrubs. This will allow sunlight to penetrate deep into the shrub, encouraging the formation of additional flowering branches.

Keep Composting

When you've finished harvesting vegetables and it's time to remove the plants, be sure to add them to the compost pile, along with your grass clippings. Keep the pile turned and aerated. If kept moist and well-tended, it will produce more great compost for the garden this fall.

Plant Onions

You'll get larger onion bulbs that won't bolt in early spring if you sow seed or transplant seedlings now. Purchase the smaller onion sets for best performance. Bulblets should be only about half an inch wide. If they're larger, they may bolt in early spring. Plant larger ones to use as green onions through the winter, since they will bolt and set seed instead of bulbing in spring.


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