Spring is the busiest season for landscapers in Seattle, and for good reason. May marks the perfect time to refresh your landscape after winter dormancy. Our comprehensive checklist helps homeowners and businesses tackle essential spring landscaping tasks to ensure a vibrant, healthy yard throughout the summer months.
Lawn Care & Cleanup
Start by removing winter debris—fallen branches, leaves, and dead plant material. Rake your lawn gently to remove matted grass and improve air circulation. Overseed thin or bare patches before May rain slows down. Apply a balanced spring fertilizer to encourage green growth. Test soil pH if you haven't done so recently; Seattle's acidic soils benefit from lime application every 3-5 years.
Planting & Bed Preparation
Prepare garden beds by adding 2-3 inches of compost to improve soil structure and fertility. May is ideal for planting perennials, shrubs, and trees before summer heat stress. Plant summer annuals like impatiens and begonias in shaded areas, and wait until late May for sun-loving plants. Space plantings appropriately and water thoroughly after planting to establish strong root systems.
Mulching & Edging
Apply fresh mulch around plants, trees, and shrubs using 2-3 inches of quality material. Keep mulch 6 inches away from tree trunks to prevent rot and pest issues. Define garden bed edges with landscape edging to create clean lines and reduce maintenance. Refresh existing mulch in high-visibility areas for an instant aesthetic improvement.
Pruning & Maintenance
Prune spring-flowering shrubs after blooming ends. Remove any winter-damaged branches from trees and evergreens. Cut back ornamental grasses that weren't pruned in late winter. Deadhead faded flowers to encourage blooming throughout the season. Check irrigation systems and repair any damaged drip lines or sprinkler heads before summer demands increase.
Pest & Disease Management
Scout plants regularly for early signs of pests and diseases. Apply organic solutions early—Seattle's wet spring creates ideal conditions for fungal issues. Ensure proper plant spacing and air circulation to prevent moisture-related problems. Apply neem oil or insecticidal soap for common spring pests like aphids and spider mites before populations explode.
Hardscape & Outdoor Living
Power wash patios, decks, and pathways to remove winter grime and algae buildup. Check for settling or uneven pavers and repair trip hazards. Clean and condition outdoor furniture. Inspect landscape lighting and replace any burned-out bulbs. Consider adding or refreshing container plantings near entryways for curb appeal.