California Gardening Guide (2026)

Coastal, valley, desert and mountain microclimates. Mild winters allow near-continuous production.

USDA hardiness zone
5โ€“11
Region
Pacific West
Typical last spring frost
02/15
Typical first fall frost
12/01
Frost-free season
289 days
Lawn grass type
Cool / warm

Quick answer (California): Most of the state gardens in USDA zones 5โ€“11 with about a 289-day frost-free window. Plan around the typical last frost of 02/15; start warm-season crops indoors ~6 weeks earlier. Source: USDA Plant Hardiness Zone Map (2023) + state cooperative extension typical freeze dates.

Your California planting calendar

Pre-filled for California. Pick a crop to see indoor start, sow/transplant, and harvest dates you can print.

In California (typical zone 5โ€“11, last frost โ‰ˆ Feb 15, first frost โ‰ˆ Dec 1, 289-day season), your Tomato plan:

Start seeds indoors
Jan 4
Sow / transplant outdoors
Mar 1
First harvest
May 10
Spacing / depth
24โ€ณ / 0.25โ€ณ

Month-by-month (California, 2026)

MonthAction
JanStart indoors
Febโ€”
MarSow ยท Transplant
Aprโ€”
MayHarvest
Junโ€”
Julโ€”
Augโ€”
Sepโ€”
Octโ€”
Novโ€”
Decโ€”

Start indoors 6 weeks before last frost; transplant after soil warms. Zones 3โ€“13 suitable. Dates are typical; confirm with your county extension and watch the 10-day forecast.

Lawns in California

Best grass types for your climate:

Kentucky BluegrassTall FescuePerennial RyegrassFine FescueBermudagrassZoysiagrassSt. AugustinegrassBuffalograss

Open the lawn care scheduler โ†’

Common pests in California

The pests most reported in your region, with organic-first treatments:

AphidsWhiteflyGarden SnailLeaf-Footed Bug

Aphids

Targets
Most vegetables, roses, ornamentals
Signs
Clusters of tiny soft bugs on new growth; curled, sticky leaves (honeydew).
Organic / IPM first
Blast with water; release ladybugs; insecticidal soap or neem oil.
Chemical option (follow label)
Pyrethrin or imidacloprid soil drench for heavy infestations.
Prevention
Avoid excess nitrogen; attract beneficial insects with dill and alyssum.

What grows well in California

Crops suitable for zones 5โ€“11:

CropTypeSpacingDays to harvest
TomatoWarm-season24โ€ณ70
PepperWarm-season18โ€ณ75
LettuceCool-season8โ€ณ45
CarrotCool-season3โ€ณ65
Green BeansWarm-season4โ€ณ55
SpinachCool-season6โ€ณ40
CucumberWarm-season12โ€ณ55
ZucchiniWarm-season36โ€ณ50
KaleCool-season12โ€ณ55
BroccoliCool-season18โ€ณ70

Figures are typical (30-year normals) from USDA and state extension services. Always confirm your local last/first freeze and product labels with your county extension before acting.