Quick answer
The non-negotiables are watering deeply and infrequently, keeping mulch at 2–4 inches, pruning dead and crossing wood in late winter, aerating and overseeding cool-season lawns in autumn, and checking irrigation at the start of the season.
Spring
- Check irrigation. Run each zone, look for broken heads, geysers and dry spots. Replace the controller battery and update the schedule.
- Cut back perennials and grasses that were left for winter interest. Do not cut spring-flowering shrubs before they bloom.
- Refresh mulch to 2–4 inches. Keep it 2–3 inches away from trunks and stems.
- Weed early. Pull before seed set; a hoe works better than a spray in beds.
- Fertilize lawns according to a soil test, not a calendar. Cool-season grasses wake up earlier than warm-season grasses.
- Prune dead and damaged wood. Leave structural pruning of trees to late winter or a professional.
Summer
- Water deeply, infrequently, early. A lawn wants about an inch a week including rain; beds want less frequent, deeper soakings.
- Mow high. Raise the deck in heat; tall grass shades soil and roots.
- Deadhead perennials if you want a second flush. Leave seed heads for birds if you prefer.
- Watch for pests and disease. Identify before spraying. Most spots are cultural, not chemical.
- Do not fertilize cool-season lawns in the heat unless you have a specific plan; it stresses the grass.
- Check trees for drought stress. New trees need water in the first two years, even if established plants are fine.
Autumn
- Aerate and overseed cool-season lawns. This is the highest-value lawn task of the year.
- Plant trees and shrubs. Soil is warm, air is cool, and roots establish before winter.
- Clean up leaves from lawns and beds. A thin layer in beds is fine; a mat smothers grass.
- Cut back spent perennials or leave seed heads for wildlife. Do not cut everything to the ground if you want winter structure.
- Drain and winterize irrigation in freezing climates.
- Mulch tender plants after the first hard frost, not before.
Winter
- Prune dormant trees and shrubs. Structure is visible, and wounds close in spring.
- Check drainage. Snowmelt and winter rain reveal ponding and downspout problems.
- Protect trunks from rodents and sunscald in cold climates.
- Service equipment. Sharpen blades, change oil, replace filters.
- Plan next year. Photograph the garden, note what failed and what to move.
Monthly, all year
- Walk the beds with a bucket: pull weeds, remove debris, note problems.
- Check irrigation after storms and at season changes.
- Look up: dead branches, wires, roof gutters.
- Check tree ties and stakes; remove them after the first year.
- Turn the compost, if you have one.
The tasks that prevent big bills
| Task | Why it matters |
|---|---|
| Soil test every 3–5 years | Prevents wrong fertilizer and pH problems |
| Deep watering | Builds roots; shallow watering builds dependence |
| Mulch at the right depth | Moisture, weeds, temperature; too much smothers |
| Sharp mower blade | Torn grass invites disease |
| Correct pruning cut | A stub or flush cut invites decay |
| Irrigation check | A broken head can wash out a bed |
| Drainage check | Water against the foundation is a structural problem |
| Record keeping | Warranties, plant names, spray dates, contractor contacts |
When to call a professional
Call for tree work above head height, irrigation repairs you do not understand, drainage that keeps failing, and any wall or grade change. The cost of a professional is usually less than the cost of a mistake in those categories.
Next: seasonal checklist · lawn care service.
FAQ
How often should landscaping be maintained?
Beds need a check monthly and a cleanup in spring and autumn. Lawns need mowing weekly in the growing season and an annual aeration. Trees need a structural prune every few years, not every season.
What is the most important maintenance task?
Watering correctly. Most plant deaths in the first two years are from too much or too little water, not pests. Deep, infrequent watering and a working irrigation check beat any fertilizer.
When should I mulch?
Late spring, after the soil has warmed and before summer heat. Autumn mulch is also fine in cold climates, but keep it off trunks and stems to prevent rot and rodent damage.