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Planting calendar / Highland, CA

Planting calendar for Highland, CA

Station REDLANDS, CA US (USC00047306) is 5.5 miles away. Median last 32°F 01/27, median first 32°F 12/19. Crop dates below come from UC ANR, UC Master Gardener Program. Where the guide uses weeks around a frost date, those weeks are applied to the median 32°F dates because the guide does not name a 10/50/90 level.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Crops in the cited guide

SowBeans, snapNorth and North CoastJuly · May–JuneSouth CoastMarch–AugInterior ValleysApril–May · July–AugDesert ValleysJan–March · AugSowBeetsNorth and North CoastFeb–AugSouth CoastJan–SeptInterior ValleysFeb–April · AugDesert ValleysSept-JanSowBroccoliNorth and North CoastFeb-April · July-SeptSouth CoastJune-July · Jan-FebInterior ValleysDec - Feb · JulyDesert ValleysSeptSowCabbageNorth and North CoastJan-April · July-SeptSouth CoastAug-FebInterior ValleysJuly · FebDesert ValleysSept-NovSowCarrotsNorth and North CoastJan-May · July-AugSouth CoastJan-SeptInterior ValleysAug-Sept · Feb-AprilDesert ValleysSept-DecSowCorn, sweetNorth and North CoastMay-JulySouth CoastMarch-JulyInterior ValleysMarch-July · AugDesert ValleysFeb-MarchSowCucumbersNorth and North CoastApril-JuneSouth CoastApril-JunInterior ValleysApril-JulyDesert ValleysFeb-May · AugSowEggplantNorth and North CoastMaySouth CoastApril-MayInterior ValleysApril-MayDesert ValleysFeb-AprilSowGarlicNorth and North CoastOct–DecSouth CoastOct–DecInterior ValleysOct–DecDesert ValleysSept-NovSowKaleNorth and North CoastFeb–AprilSouth CoastAug–OctInterior ValleysAug–SeptDesert ValleysSept–NovSowLettuceNorth and North CoastFeb–AugSouth CoastAug–AprilInterior ValleysAug · Nov–MarchDesert ValleysSept-DecSowOkraNorth and North CoastMaySouth CoastApril-MayInterior ValleysMayDesert ValleysMaySowOnions, bulbNorth and North CoastJan-March · Nov-JanSouth CoastFeb-OctInterior ValleysOct-Nov · Jan-MarchDesert ValleysOct-NovSowOnions, greenNorth and North CoastApril-JulySouth Coastall yearInterior ValleysAug-DecDesert ValleysSept-JanSowPeppersNorth and North CoastMaySouth CoastApril-MayInterior ValleysMayDesert ValleysMarchSowPotatoes, whiteNorth and North Coastearly-Feb · late-April-MaySouth CoastFeb–May · Jun–AugInterior ValleysFeb–Mar · AugDesert ValleysDec–FebSowPumpkinsNorth and North CoastMaySouth CoastMay-JuneInterior ValleysApril-JuneDesert ValleysMarch-JuneSowSpinachNorth and North CoastAug–FebSouth CoastAug-MarchInterior ValleysSept–JanDesert ValleysSept–NovSowSquash, summerNorth and North CoastMay–JulySouth CoastApril–JuneInterior ValleysApril–JulyDesert ValleysFeb–Mar · Aug–SepSowSquash, winterNorth and North CoastMaySouth CoastApril-JuneInterior ValleysApril-JuneDesert ValleysFeb-March · AugSowTomatoesNorth and North CoastMaySouth CoastApril-July 15Interior ValleysApril-MayDesert ValleysDec-MarchSowWatermelonsNorth and North CoastMay-JuneSouth CoastApril-JuneInterior ValleysApril-JuneDesert ValleysJan-March

Highland, CA

Zone 10aAverage annual extreme minimum 30°F to 35°F

Median last 32°F is January 27. Median first 32°F is December 19. The 50% growing-season length is 329 days. The green band runs from the median last frost to the median first frost. Thin ticks mark the 10%, 50%, and 90% dates.

Outside the median season Growing seasonTicks: 10%, 50%, and 90%

California. Nearest qualified station: REDLANDS, CA US (USC00047306), 5.5 miles. Median last 32°F January 27. Median first 32°F December 19. The 50% growing-season length is 329 days.

Open the ZIP page · Crop guides for California

32°F probabilities at this station
10%50%90%
Last 32°F on or afterFebruary 28January 27December 21
First 32°F on or beforeDecember 1December 19January 26

Column order matches the NCEI file: for the last freeze, 10% is the later date and 90% is the earlier date. How to read the probabilities.

A wall calendar surrounded by vegetables, herbs, seed packets, and watering cans.

Planting calendar

Windows below are from UC ANR, UC Master Gardener Program, Time of planting, retrieved 2026-10-10. North and North Coast = Monterey County north; South Coast = San Luis Obispo County south; Interior Valleys = Sacramento, San Joaquin, and similar valleys; Desert Valleys = Imperial and Coachella Valleys. Source line on the page: California Master Gardener Handbook, Table 13.2, Adapted from Vegetable Gardening Illustrated 1994.

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State crop pages: Beans, snap · Beets · Broccoli · Cabbage · Carrots · Corn, sweet · Cucumbers · Eggplant