California · USDA 9b baseline
Low-water garden calendar
What to do each month in a low-water California yard — when to plant, how to water through the dry summer, when to prune and mulch, and what to clear before fire season. Timed for the Sacramento / Central Valley (USDA 9b); coastal gardens run a couple weeks ahead, foothill and mountain gardens a couple weeks behind.
January
Bare-root bargains and dormant-season pruning
- 🌱Plant bare-root roses, fruit and nut trees, and berries now while they are dormant and inexpensive, keeping the roots moist so they never dry out during handling.
- ✂️Do dormant structural pruning of deciduous fruit trees, roses, and deciduous shrubs while they are leafless, but do not prune apricots or cherries now, since winter cuts invite Eutypa dieback (prune those in late summer instead).
- 🐛Rake up mummified fruit and fallen leaves beneath deciduous trees and, if pests were a problem, apply a dormant oil to smother overwintering insects and eggs.
- 🧰Protect frost-tender plants such as young salvias, citrus, and succulents on hard-frost and Tule-fog nights by covering them and keeping the soil moist.
February
Cut back, finish planting, and prep for the dry season
- ✂️Cut dormant native bunchgrasses (deer grass, muhly) and spent herbaceous perennials back to a few inches now, just before spring growth pushes, being careful not to cut into the crown.
- 🌱Finish bare-root planting and keep adding natives, and scatter California wildflower and annual seed to catch the last of the winter rains.
- 🪵Refresh mulch and test and repair your drip system now, before the dry season, so it is ready when plants start needing water.
- 🔥While plants are still dormant, get a head start on defensible space by clearing dead wood, leaf litter, and dry debris near the house, as general good practice; check your local fire agency for specifics.
March
Spring growth flush — plant, weed, and finish pruning before the heat
- 🌱Get California natives and Mediterranean plants in the ground now while spring soil is warm and moist — this is one of the last lower-stress windows before summer heat, so plan to water anything you plant through its first summer.
- 🐛Hoe or hand-pull winter annual weeds while they're small and the soil is still soft, before they flower and set next year's seed.
- ✂️Finish dormant-season pruning of summer-flowering shrubs and deciduous plants now, before the growth flush — but leave spring-blooming natives alone until after they finish flowering.
- 🪵Top up organic mulch to about 3 inches while spring rain is still in the soil, keeping it a few inches back from stems and crowns.
April
Last call for planting, enjoy the bloom, then mulch for summer
- 🌱Finish any spring planting early this month — inland Valley heat arrives sooner than on the coast, so hold remaining natives until the fall rains rather than fighting to establish them in summer.
- ✂️Deadhead or lightly cut back spring bloomers like California poppy and sages after flowering to tidy them and prolong bloom, but avoid hard-pruning natives as the heat approaches.
- 🪵Spread a 3–4 inch layer of organic mulch across beds before summer to hold soil moisture, cool roots, and suppress weeds — keeping it off plant crowns.
- 🐛Keep removing weeds before they seed; a fresh mulch layer will smother most of what's still germinating.
May
Set up summer irrigation, finish mulching, clear fire-season fuel
- 💧Test your drip system and set it for deep, infrequent watering before the dry season — first-year plants still need regular water while established natives taper off (coastal gardens need less); check watering-day rules with your local water provider.
- 🔥As spring growth dries, mow or trim dead annual grasses and clear dry leaves and debris near the house — general defensible-space good practice, not a compliance guarantee; confirm current guidance with your local fire agency.
- 🪵If you haven't already, finish mulching now — bare soil bakes and loses moisture fast once Central Valley heat sets in.
- ✂️Ease off pruning natives as the heat arrives — cutting now stresses plants and pushes tender growth at the wrong time, so save major pruning for winter dormancy.
June
Switch to summer mode before the real heat lands
- 💧Shift to deep, infrequent irrigation now: water established low-water plants slowly and deeply in the early morning, then let the top few inches dry before watering again, and check your water provider's current watering-day rules.
- 🔥As general defensible-space good practice, mow or cut dry annual grasses and weeds low and rake up dead leaves and needles near the house early in the season.
- 🌱Hold off on planting California natives now: save major planting for the cool fall rains (roughly Oct-Nov) so roots establish over winter, since summer heat stresses new roots.
July
Peak heat: protect plants, don't push them
- ✂️Don't shear or hard-prune California natives in this peak heat, as fresh cuts and exposed interior foliage sunburn and invite stress; limit yourself to light deadheading of spent flowers.
- 💧Water deeply but infrequently and only in the cool early morning; hand-water first- and second-year plants when the soil is dry a few inches down, and go easy, since many established natives want a dry summer rest (coastal gardens with fog need even less).
- 🐛Watch for spider mites and aphids, which explode in hot, dry, dusty conditions: rinse foliage with a strong jet of water rather than reaching for sprays, and skip high-nitrogen fertilizer that pushes tender new growth.
- 🧰Walk your drip and irrigation lines before a heat wave to find clogged emitters, leaks, and dry spots, and confirm each zone is actually reaching the root zone.
August
Ride out late summer and plan the fall planting
- 💧Keep watering deep and infrequent, and resist overwatering summer-dormant natives, especially oaks, bulbs, and native grasses, whose crowns can rot from extra summer water.
- 🌱Plan the fall native-planting window now (roughly Oct-Nov): build your plant list, sketch bed shapes, and reserve or order plants, but wait to actually plant until the weather cools and rains return.
- 🔥Keep up defensible-space maintenance through the hottest, driest stretch by clearing newly dried grass, fallen leaves, and dead material, since fine fuels keep building all summer.
- 🐛Hand-pull summer weeds before they set seed and keep monitoring for mites and other heat-stressed-plant pests as the dry spell drags on.
September
Plan and prep — it's still too hot inland to plant
- 🌱Hold off planting natives while the Central Valley is still hot; use September to plan beds and source plants (enter your address at Calscape for a local list) so you're ready once the heat breaks in October — coastal gardens can start a few weeks earlier.
- 💧Keep watering young and establishing natives deeply but infrequently through the last hot stretch, and begin trimming irrigation run times as the days shorten.
- 🔥Clear dry leaf litter, dead wood, and spent weeds from around the house and under shrubs — general defensible-space good practice during peak fire season (not a compliance guarantee; check your local fire agency for specifics).
- ✂️Avoid hard-pruning heat-stressed natives in September's high heat; if you shape summer-dormant shrubs like manzanita, keep cuts light and save major pruning for the dormant season.
October
The planting window opens — the best month of the year to plant
- 🌱Start planting California natives and Mediterranean low-water plants now — the soil is still warm while the air cools, so roots establish through the coming winter rains before next summer's heat.
- 🌱Plant spring-blooming bulbs like daffodils and narcissus, plant or divide Pacific Coast iris while their roots are actively growing, and divide crowded perennials — weeding and refreshing each bed before you replant.
- 🪵After planting, spread 2–3 inches of bark or wood-chip mulch to hold moisture and suppress weeds, keeping a 3–4 inch gap clear around each plant's crown.
- 💧Water new plantings in thoroughly and keep the root zone lightly moist until the rains arrive, tapering irrigation on established plants as temperatures drop; inland gardens may need to hand-water new plants longer than coastal ones since Valley rains come later.
November
Keep planting and let the rains take over the watering
- 🌱Keep planting natives through November — it's the tail of the ideal window, and roots grow all winter on the rains for a strong spring.
- 💧Once winter rains soak in, turn off or sharply cut back your irrigation, hand-watering only new plantings during extended dry spells.
- 🐛Hoe or hand-pull winter weeds now while they're small and the wet soil lets roots slip out easily — far faster than in spring, and it stops them from setting seed.
- ✂️Stop pruning natives now — late-fall cuts push tender new growth that won't harden before the cold, and seedheads left standing feed birds and shelter pollinators over winter; save any structural pruning for late winter, before spring growth begins.
December
Plant between the storms, and let the rain do the watering
- 🌱Keep planting California natives and Mediterranean shrubs during dry breaks between storms, but stay off waterlogged ground — planting or digging in saturated clay compacts the soil and can rot new roots.
- 💧Leave automatic irrigation off and let winter rain do the watering, making sure it drains away rather than pooling, since most California natives rot if they sit in soggy soil — hand-water new plantings only if a dry spell runs past two to three weeks.
- 🐛Pull or hoe winter annual weeds while the soil is soft and before they flower and set seed.
- 🪵Top up coarse organic mulch to about 3 inches over the moist soil, keeping it a few inches back from trunks and plant crowns, to hold moisture and smother weeds.
Turn the calendar into a plan
Ready to plant? The Lawn-Conversion Planner turns your area into a real low-water plant list with counts, spacing, and cost, and the plant guide shows what each one looks like. Fall is the best time to put California natives in the ground.
General guidance for a low-water California garden, not a guarantee — your microclimate, soil, and specific plants shift the timing. For watering rules and any rebates, check with your local water provider; for plant-specific advice, your county UC Master Gardener program is the authority. Fire-season tasks here are general defensible-space good practice, not a compliance plan.