Regional Gardening Reports :: National Gardening Association

Northern California Coastal & Inland Valleys

July, 2009
Regional Report

Water Trees Deeply

Use a soaker hose or a deep-watering device to water landscape trees and established shrubs at least once a month during the dry season. Young trees will need water more frequently. Apply water around the drip line for best results. Redwood trees require more water than other landscape trees and the larger they are, the more water they require.

Plant Warm-Season Vegetables

Corn, peppers, and tomatoes will take off when planted in warm soil. There is still enough warm weather left to enjoy a bountiful harvest. Plant warm season crops from 4-inch pots (except corn, which does best when planted from seed) in rich, fast-draining soil in full sun. Mulch around newly planted crops to minimize water usage and to discourage weed growth.

Pull Weeds

Weeds will rob nutrients and water from nearby ornamental plants. Water the day before you decide to pull weeds. The damp soil will help those roots to slip easily from the ground. If you don't get the roots, most perennial weeds will grow right back!

Check Drip Systems

If a drip emitter is blocked, your first indication will be a dead plant. Turn on the system manually and make a thorough inspection of all emitters. If one is not putting out water, take off the fitting and either remove the blockage or replace the part.

Deadhead Rhododendrons and Azaleas

Remove the faded flowers from rhododendrons and azaleas. Most azaleas are not self-shedding and need some help to look tidy. Clippers are necessary to detruss rhodies. Cut between the faded flower and the leaves to keep plants bushy and low. After detrussing, fertilize with a product formulated for acid-loving plants.


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