In the Pacific Northwest, the arrival of fall means one thing—rain. For gardeners in Seattle and surrounding areas, preparing for the rainy season is essential to keep plants healthy, soil balanced, and landscapes looking their best. With a little planning, you can protect your garden from excess water while ensuring it thrives through the wet months.
Why Rainy Season Preparation Matters in Seattle
Seattle’s long, wet winters can lead to compacted soil, root rot, and nutrient leaching if gardens aren’t properly managed. By making adjustments before the rains arrive, you’ll prevent water damage and create stronger growing conditions for spring.
Improve Drainage and Soil Health
- Check drainage: Standing water around plant roots can cause serious problems. Consider installing French drains or amending soil with compost to improve water flow.
- Mulch wisely: A 2–3 inch layer of mulch regulates soil temperature and prevents erosion, but avoid piling it against stems or trunks.
- Raise beds: If your garden struggles with soggy soil, raised beds offer better control over drainage and root health.
Protect Plants from Heavy Rains
- Prune carefully: Remove weak or damaged branches from trees and shrubs to reduce the risk of breakage in storms.
- Stake young trees: Seattle’s windy fall weather, combined with saturated soil, can topple young or shallow-rooted trees.
- Cover sensitive plants: Use breathable covers or cloches to shield delicate shrubs and perennials from excess rain and cold.
Maintain Hardscapes and Gutters
Don’t forget the structures around your garden. Clean gutters and downspouts to direct rainwater away from foundations. Paths and patios may need gravel or pavers to reduce slippery surfaces.
Plan Ahead for Spring
Preparing now ensures healthier soil and plants come spring. Consider adding cover crops like clover or fava beans to enrich the soil naturally. With the right steps, your Seattle garden will not only survive the rainy season but also emerge stronger when the sun returns.
