Maintaining a beautiful yard in Sonoma County is a year-round endeavor. Our Mediterranean climate — with its wet winters and dry summers — creates a distinct seasonal rhythm that should guide your maintenance activities. Understanding what to do and when to do it is the key to a healthy, beautiful landscape that looks great in every season.
This complete guide walks you through year-round yard maintenance, month by month and season by season, tailored specifically for Santa Rosa and Sonoma County.
Spring (March–May): The Season of Growth
Spring is the most active season for yard maintenance in Sonoma County. As temperatures warm and days lengthen, your landscape comes alive — and so does the work.
March
- Begin weekly lawn mowing as grass starts actively growing
- Clean up winter debris — leaves, branches, and accumulated litter
- Prune dormant trees and shrubs before bud break
- Cut back perennials and ornamental grasses
- Apply pre-emergent weed control to garden beds
- Check irrigation systems and make repairs
- Start vegetable garden preparation
March is the ideal time for a comprehensive spring yard cleanup. Remove winter debris, clean up garden beds, and give your lawn a fresh start.
April
- Continue weekly mowing — this is peak growth season
- Apply lawn fertilizer to support spring growth
- Plant new trees, shrubs, and perennials
- Install fresh mulch in garden beds
- Begin regular weeding — weeds are growing fast too
- Monitor for pests as insects become active
April is perfect for mulch installation — fresh mulch suppresses spring weeds and gives your landscape a polished look.
May
- Maintain weekly mowing schedule
- Deadhead spring-blooming flowers
- Check irrigation coverage as weather warms
- Monitor water needs — begin regular irrigation if needed
- Light pruning of spring-blooming shrubs after they finish flowering
- Watch for pest activity — aphids and other pests emerge
Summer (June–August): The Season of Maintenance
Summer in Sonoma County is warm and dry. Growth slows, but maintenance needs continue — particularly watering and weed control.
June
- Adjust mowing height — raise it slightly to help grass tolerate heat
- Increase irrigation as dry season begins
- Control weeds before they go to seed
- Deadhead flowering plants regularly
- Monitor for drought stress in lawns and gardens
- Light summer pruning of fruit trees to control size
July
- Continue regular mowing but frequency may decrease as growth slows
- Deep water trees and shrubs — they need monthly deep irrigation
- Monitor for fire danger — keep debris cleared, especially near structures
- Check for pest problems — spider mites thrive in hot, dry conditions
- Harvest vegetables regularly to encourage continued production
July is a good time for pressure washing — clean your patio and walkways for summer entertaining.
August
- Maintain irrigation — this is typically the driest month
- Watch for heat stress in lawns and plants
- Continue deadheading and light maintenance
- Plan fall projects — order materials for fall landscaping work
- Begin thinking about fall cleanup schedule
Fall (September–November): The Second Spring
Fall brings cooler temperatures and (hopefully) returning rain. It's a second growth period and a critical time for preparing your landscape for winter.
September
- Return to more frequent mowing as growth picks up
- Fall fertilization of lawns — this is the most important feeding of the year
- Aerate compacted lawns if needed
- Overseed thin or bare areas in the lawn
- Plant fall vegetables and cool-season annuals
- Begin fall cleanup as deciduous plants start dropping leaves
October
- Continue regular mowing while grass is still growing
- Rake leaves regularly — don't let them smother the lawn
- Plant trees and shrubs — fall is the best planting season in Sonoma County
- Apply winter mulch to protect plant roots
- Clean and store tools that won't be used in winter
- Winterize irrigation systems if frost is expected
October is the perfect time for professional tree trimming — many trees are best pruned as they enter dormancy.
November
- Final mowing of the season as growth stops
- Complete leaf removal — don't leave wet leaves on the lawn over winter
- Clean up garden beds — remove dead annuals and cut back perennials
- Plant spring-blooming bulbs before the ground gets too cold
- Protect tender plants from potential frost
- Schedule fall yard cleanup if not already done
November is the ideal time for a thorough fall yard cleanup. Professional cleanup ensures all debris is removed and your property is winter-ready.
Winter (December–February): The Season of Rest
Winter is the quietest season for yard maintenance in Sonoma County, but there are still important tasks.
December
- Minimal mowing — only if needed and ground isn't saturated
- Prune deciduous trees during dormancy
- Monitor for storm damage and address hazardous limbs promptly
- Clean and sharpen tools
- Plan for spring — design new landscape projects
- Protect plants from frost when freezing temperatures are forecast
January
- Continue dormant pruning of trees and shrubs
- Prune fruit trees — this is the ideal month for most fruit tree pruning
- Check drainage — ensure water isn't pooling near your foundation
- Remove winter weeds that sprout in the wet conditions
- Plan spring projects and schedule services for March
February
- Finish dormant pruning before bud break
- Apply dormant spray to fruit trees if needed
- Start seeds indoors for spring vegetable garden
- Prepare garden beds for spring planting
- Schedule spring cleanup and maintenance services before the busy season
Year-Round Essentials
Regardless of the season, these tasks need ongoing attention:
Irrigation Management
Water needs change dramatically throughout the year. In summer, deep, infrequent watering promotes deep roots. In winter, natural rainfall usually provides adequate moisture. Adjust your irrigation schedule seasonally to avoid both water waste and plant stress.
The California Department of Water Resources provides excellent resources on efficient landscape irrigation.
Weed Control
Weeds grow year-round in Sonoma County — different species in different seasons. Consistent weeding prevents weeds from establishing and going to seed. Regular garden maintenance visits keep weeds under control.
Pest and Disease Monitoring
Pests and diseases can appear at any time. Regular observation catches problems early. Watch for unusual spots on leaves, chewed foliage, sticky residue, or visible insects.
Lawn Health
Your lawn needs different care in each season — from weekly mowing in spring to dormant rest in winter. Professional lawn maintenance ensures your lawn gets the right care at the right time.
The Value of Professional Year-Round Maintenance
Keeping up with year-round yard maintenance is a significant commitment. Many Sonoma County homeowners find that professional maintenance services provide better results with less stress:
- Consistent care: Your landscape is maintained on schedule, every season
- Expert knowledge: Professionals know exactly what to do and when
- Proper equipment: The right tools for every task
- Time savings: Your weekends are yours again
- Better results: Professional care produces healthier, more beautiful landscapes
At A & J Yard Service, we provide comprehensive year-round maintenance programs that cover everything your landscape needs, season after season. From weekly lawn mowing and garden care to seasonal tree trimming and cleanups, we keep your property looking its best all year.
Conclusion
A beautiful Sonoma County landscape requires attention year-round, with each season bringing its own set of tasks and priorities. By following this seasonal guide — or partnering with a professional maintenance service — you can ensure your yard stays healthy, beautiful, and well-maintained in every month of the year.
Ready to take the hassle out of year-round yard maintenance? Contact A & J Yard Service for a free estimate. We serve Santa Rosa, Petaluma, Windsor, Sebastopol, Rohnert Park, Cotati, and Novato with professional, reliable landscaping services.
Need Help with Your Yard?
Get a free estimate from Santa Rosa's trusted landscaping team.
Get Free Estimate
