When to Release Beneficial Insects in Washington Greenhouses
Releasing beneficial insects is a core tactic in integrated pest management (IPM) for greenhouse production. In Washington State, where greenhouse operations range…
Read articleRegion guide
Gardening in Washington
Washington spans USDA zones 4 through 9 – wet mild winters west of the Cascades, hot dry summers east, and Puget Sound moderating the coast. The trade-off: a state split into two very different climates by one mountain range, and growing rules that flip across it. These guides are written for Washington’s actual range.
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Recently published
Latest guides
Types of Native Plant Diseases Common in Western Washington
Western Washington hosts a temperate, moist climate that favors abundant native vegetation and, at the same time, encourages a wide array of…
Read articleSteps to Diagnose Viral Symptoms in Washington Fruit Trees
Viral diseases can cause significant, long-lasting damage in fruit trees. In Washington orchards and backyard blocks the combination of grafting practices, widespread…
Read articleIdeas for Low-Impact Pest Barriers in Washington Raised Beds
Washington state presents a mix of coastal, maritime, and inland climates that favor both abundant vegetable production and persistent garden pests. Raised…
Read articleBest Ways to Monitor Invasive Insect Spread Across Washington Gardens
Early detection and systematic monitoring are the most effective ways gardeners, community groups, and land managers in Washington can limit the spread…
Read articleBenefits of Crop Rotation for Preventing Diseases in Washington Vegetable Beds
Crop rotation is one of the oldest and most powerful cultural tools a Washington vegetable gardener can use to reduce disease pressure,…
Read articleWhat to Inspect When Buying Plants to Avoid Pests in Washington
Buying plants in Washington can be rewarding: the state’s diverse climate supports a wide variety of ornamentals, edibles, and native species. It…
Read articleWhat Does Spider Mite Damage Look Like on Washington Evergreens?
Evergreens across Washington state–from western hemlock and Douglas-fir in coastal Puget Sound landscapes to blue spruce and arborvitae in inland yards–display a…
Read articleHow Do I Scout Washington Gardens for Early Disease Signs
Scouting gardens in Washington for early disease signs is both a science and a practical routine. Whether you manage a small home…
Read articleBeyond this state
Explore another climate
Each state has its own quirks. Pick another and dig in.