Understanding Boise's Landscape Seasons
Boise's high desert climate creates four distinct seasons with different landscape needs. Spring requires preparation and fresh growth management. Summer demands consistent watering and heat stress monitoring. Fall is ideal for establishment and rejuvenation. Winter brings dormancy but also planning opportunities. Understanding these seasonal patterns helps you care for your landscape effectively year-round.
Spring (March-May)
March Tasks
- Irrigation system startup: Check for winter damage, flush lines, test all zones
- Spring cleanup: Remove dead plant material, fallen branches, leaves from beds
- Shrub and tree inspection: Look for winter damage, broken branches, animal damage
- Equipment maintenance: Service mowers, clean tools, prepare for growing season
April Tasks
- Pruning: Prune winter-damaged branches after final frost risk is clear
- Planting: Begin planting hardy trees and shrubs mid-month as soil warms
- Lawn care: Start irrigation, rake dead grass, begin regular mowing
- Mulch refresh: Top-dress beds with fresh mulch where needed
- Weeding: Remove early season weeds before they establish
May Tasks
- Tender plant planting: After May 15th (last frost date), plant tender annuals and tropicals
- Fertilization: Apply spring fertilizer to lawns and plants
- Deadheading: Remove spent spring flowers to promote continued blooming
- Insect monitoring: Watch for emerging pests and address early
- Watering routine: Increase irrigation frequency as temperatures warm
Summer (June-August)
June Tasks
- Summer watering: Increase to 1.5-2 inches per week for lawns, adjust for plants
- Lawn maintenance: Continue regular mowing at 2.5-3 inch height
- Pruning spring bloomers: Deadhead lilacs, spirea, and other spring-flowering shrubs
- Pest management: Monitor for insects and disease, treat issues early
- Mulch maintenance: Add mulch where it's thin to conserve water
July Tasks
- Peak summer watering: Maintain consistent deep watering as heat peaks
- Aeration option: Consider summer aeration and overseeding (optional but helpful)
- Heat stress monitoring: Watch for wilting or brown patches indicating stress
- Deadheading: Continue removing spent flowers to encourage blooming
- Vacation watering: Plan for property coverage while away (timers, neighbors, professionals)
August Tasks
- Summer watering continued: Don't reduce watering yet; heat continues into September
- Prepare for fall: Begin reducing fertilizer applications
- Seed collection: Collect seeds from perennials for propagation
- Planning: Plan fall projects and plantings
- Fall plant shopping: Check nurseries for fall planting stock arriving
Fall (September-November)
September Tasks
- Core aeration: Aerate lawns to improve water and nutrient penetration
- Overseeding: Overseed lawns right after aeration for thick, healthy turf
- Fall planting: Best time to plant trees, shrubs, and perennials in Boise
- Watering reduction: Begin reducing frequency as cooler weather arrives
- Shrub pruning: Light pruning after summer stress, wait on major pruning
October Tasks
- Fall fertilization: Apply fall fertilizer high in potassium to strengthen roots
- Lawn height: Mow at slightly lower height (2-2.5 inches) as season ends
- Leaf management: Rake and compost leaves or mulch them into the lawn
- Irrigation adjustment: Reduce watering frequency significantly
- Fall color enjoyment: Monitor and enjoy fall foliage
November Tasks
- Final mowing: Last lawn mowing of the season (short 1.5-2 inch height to prevent snow mold)
- Winterization: Drain irrigation systems before first freeze
- Plant protection: Add mulch around tender plants for winter protection
- Stop watering: Most plants need no supplemental water in winter
- Tool storage: Clean and store equipment for winter
Winter (December-February)
December Tasks
- Winter planning: Review current landscape, make wish list for spring changes
- Design review: Consider calling a designer if major changes are desired
- Hardscape maintenance: Clean and maintain patios, pathways, and structures
- Tool maintenance: Sharpen pruning tools, service mower
- Reading and learning: Study landscaping books, take online classes
January Tasks
- Winter tree pruning: Prune deciduous trees in dormancy (late January at latest)
- Structural work planning: Plan any hardscape projects for spring
- Budget planning: Set budget for spring landscaping work
- Emergency snow removal: Address heavy snow if it damages branches or structures
- Indoor plant care: If you overwinter tender plants indoors, care for them
February Tasks
- Landscape inventory: Walk your property and note areas needing attention
- Spring project planning: Finalize designs and get bids from contractors
- Late winter pruning: Finish major pruning of deciduous trees before growth starts
- Pest and disease prevention: Plan preventive measures for upcoming season
- Spring shopping: Order plants, supplies, and schedule contractors
Year-Round Maintenance Tasks
- Weeding: Remove weeds when they're young and small, before they establish
- Deadheading: Remove spent flowers to encourage continued blooming
- Plant monitoring: Watch for signs of stress, disease, or pest problems
- Mulch maintenance: Keep mulch 2-3 inches deep, away from plant stems
- Tool maintenance: Keep tools sharp and clean for effective work
Seasonal Checklist
Print and post this checklist to stay on top of landscape maintenance throughout the year:
| Season | Main Focus | Key Tasks |
|---|---|---|
| Spring | Wake-up and growth | Cleanup, prune, plant, fertilize, start watering |
| Summer | Watering and maintenance | Water deeply, mow, deadhead, pest monitor, enjoy |
| Fall | Establishment and prep | Aerate, overseed, plant, fertilize, reduce water |
| Winter | Planning and rest | Prune (late), plan, maintain hardscape, research |
Need Help with Seasonal Maintenance?
Many Boise homeowners hire professionals to handle seasonal tasks. Hockema Landscape offers seasonal maintenance packages to keep your landscape healthy year-round. Let us handle the work.