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Isleton, CA — Planting Guide for June

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Isleton, CA Zone 9b June

Your June game plan for Isleton, CA

If you only do a handful of things in the garden this June, make it these. They're sequenced around your zone's frost timing.

Avg. last frost February 12
Avg. first frost December 1
Soil temp (4") 87°F
Watering Critical
Pest pressure High
Daylight 14.7 hrs
  1. Pick basil, cucumber, and green beans

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Coming up in July — start thinking about
  • First harvests: peppers, tomatoes, and ageratum

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Isleton gardens in a dry climate (only 0" annual precipitation). Watering strategy matters more here than in most of the country — drip irrigation, deep mulching, and morning watering aren't optional, they're table stakes. The flip side: pest and disease pressure are far lower than in humid regions, and your soil temperatures climb fast in spring so you can plant heat-lovers earlier than the zone map suggests.

Soils trend Loam — the gold standard for vegetables. Add 2–3" of compost annually to maintain it and you'll outgrow most of your neighbors.

Isleton averages 27.1 drought weeks per year (US Drought Monitor, 2000–present, trend stable). Treat irrigation as a year-round system, not a summer add-on.

🌡️ USDA Zone

9b (25°F to 30°F min)

❄️ Avg. Last Frost

February 12

🍂 Avg. First Frost

December 1

📅 Growing Season

293 days

🌧️ Climate

Arid 0.1" annual

💨 Wind

Moderate 6.6 mph avg

🥶 Frost Tier

Regular 15% frost-free years

🏜️ Drought

27.1 wk/yr trend stable

📍 ZIP Codes

1 ZIP

Isleton, CA Year-round
292 days
Last Spring Frost February 12
292 growing days
First Fall Frost December 1

Monthly Watering Calendar for Isleton

When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.

Why it matters: Mulch reduces watering needs 30-50% by cutting evaporation. Isleton's 0" annual rainfall might be enough for vegetables in some months and not in others — a 2-3" mulch layer evens the swing.

1"/wk 0" 1.9" 3.8" 5.6" 7.5" Jan 6.1" Feb 7.5" Mar 5.7" +1.8" Apr 2.5" +3.5" May 0.8" +4.1" Jun 0.2" +4.3" Jul 0" +4.3" Aug 0" +4" Sep 0.3" +2.9" Oct 1.4" +1.6" Nov 2.7" Dec 5.9"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 6.1 in 8 days None
Feb 7.5 in 8 days Low
Mar 5.7 in 9 days Low
Apr 2.5 in 5 days 1.8 in High
May 0.8 in 2 days 3.5 in Critical
Jun 0.2 in 1 days 4.1 in Critical
Jul 0 in 0 days 4.3 in Critical
Aug 0 in 0 days 4.3 in Critical
Sep 0.3 in 1 days 4 in Critical
Oct 1.4 in 3 days 2.9 in High
Nov 2.7 in 6 days 1.6 in High
Dec 5.9 in 8 days None

Annual total: 33.1 in. Water needs vary by crop — tomatoes need ~1.2"/week while herbs like rosemary need only 0.3"/week. Check individual plant pages for crop-specific water budgets that factor in your county's rainfall and soil drainage.

Isleton Soil Profile

Soil Type

Loam

Soil pH

6.4-7.1

Drainage

Well Drained

Frost Risk Probability

Based on 29 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Feb 12 → Dec 1 293 frost-free days Protect crops frost returns Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: Apr 6 Protect by: Dec 20

Beginners: Plant frost-sensitive crops (tomatoes, peppers, squash) after the "Safe" date on the left. Harvest or cover them before the "Protect by" date on the right. Hardy crops (lettuce, peas, kale) can go in the yellow transition zones.

How to read this table: "Conservative" means you're safe from frost 9 out of 10 years — best for beginners and frost-sensitive crops. "Average year" is the typical date. "Aggressive" means only 1 in 10 years is that warm — experienced gardeners with frost protection can try these dates.

Planting Strategy Last Spring Frost First Fall Frost Frost-Free Days
Conservative (safest) Apr 6 Dec 20 258 days
Cautious Feb 27 Dec 8 284 days
Average year Feb 12 Dec 1 292 days
Optimistic Jan 26 Nov 25 303 days
Aggressive (risky) Jan 5 Nov 10 309 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±91 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.

⚠️
Is the growing season changing?

Yes — growing seasons are getting shorter here (about 4.8 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.

Gardening Difficulty Score

52 Moderate
Frost Timing Risk
10.0/10
Drought Risk
7.5/10
Soil Difficulty
1.0/10
Altitude Challenge
0.0/10
Climate Shift
10.0/10
Rainfall Challenge
0.0/10

Sacramento County presents some gardening challenges. Choose adapted varieties and plan around frost dates.

Zone 9b Frost Countdown
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Loading...
Last Frost: Feb 12 First Frost: Dec 1

Local Gardening Help in Sacramento County

Free expert help is closer than you think. Your county's cooperative extension office connects you with trained gardeners, soil testing labs, and local programs — all specific to Sacramento County's climate and soil.

County Extension Office

Sacramento County University of California Cooperative Extension Extension Office

Phone: 530-750-1200

Visit Extension Office Website →

Extension offices are run by land-grant universities and funded by the USDA. Their advice is free, research-based, and tailored to your county's specific conditions.

Master Gardener Program

Free gardening help from trained volunteers

Master Gardeners are community volunteers who complete 40–60 hours of university horticultural training. They answer gardening questions, diagnose plant problems, and offer workshops — all free.

Find Master Gardeners in CA →

Many extension offices run a Master Gardener hotline where you can call or email with photos of plant problems for free diagnosis.

Soil Testing

Available through your extension office

Before amending your soil, get it tested. Your extension office offers soil testing (typically $10–$25) that tells you exact pH, nutrient levels, and amendment recommendations specific to what you want to grow.

Request a Soil Test →

Services Available in Sacramento County

Soil testing Pest management Water-wise gardening Master Gardener hotline
Finding local nurseries & garden centers in Sacramento County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Sacramento County's soil and climate that big-box stores can't. Plants from local growers are typically hardier because they're already acclimated to your zone.

How to Find Them

Search for "nurseries near Sacramento County CA" or "garden center Sacramento County" on Google Maps. Also check with your extension office — they often maintain lists of reputable local nurseries and plant sales.

Community gardens & gardening groups

Community gardens are a great way to learn from experienced gardeners in your area, especially if you're limited on space. Search "community garden Sacramento County CA" or check your extension office and local parks department. Facebook groups like "Sacramento County Gardeners" or "California Gardening" are also excellent for local advice and plant swaps.

What to Plant After Your Harvest

After your first crops finish, use the remaining frost-free days to grow a second round.

Show 6 more succession options
After Peppers (harvest ends Jul 2) 152 days until frost
After Beets (harvest ends May 7) 208 days until frost
After Hot Peppers (harvest ends Aug 6) 117 days until frost
After Tomatoes (harvest ends Jul 2) 152 days until frost
After Eggplant (harvest ends Jul 2) 152 days until frost
After Squash (Summer) (harvest ends Jun 11) 173 days until frost

Sunlight & Day Length in Isleton

Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.

Quick context: Day length triggers flowering in many crops. Some need short days (sweet potatoes), some long (most flowers), and some are day-neutral (most modern tomatoes). Isleton's latitude determines which varieties fit your beds.

Longest Day

14.7 hours

Summer solstice daylight

Shortest Day

9.3 hours

Winter solstice daylight

Peak Sun Hours

13.6 hr/day peak (summer)

Peak sun hours (green dashed line below) account for cloud cover — this is the usable direct sunlight your garden actually receives. Most vegetables need 6+ peak sun hours.

14hr 12hr 4h 7h 10h 13h 16h Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Daylight hours (sunrise to sunset) Peak sun hours (direct sunlight after cloud cover) ▪ Gold zone = long day (14+ hr) ▪ Blue zone = short day (<12 hr)

Onion tip: Your long summer days (14+ hours) support long-day onion varieties like Walla Walla, Sweet Spanish, and Ailsa Craig.

View detailed monthly data
MonthDaylight HoursPeak Sun HoursDay Length
January 9.6 hr 5.5 hr Short day
February 10.6 hr 6 hr Short day
March 11.7 hr 7.9 hr Short day
April 13 hr 9 hr Neutral
May 14.1 hr 11.8 hr Long day
June 14.7 hr 13.6 hr Long day
July 14.4 hr 13.3 hr Long day
August 13.5 hr 12.4 hr Neutral
September 12.2 hr 10.2 hr Neutral
October 11 hr 8.4 hr Short day
November 9.9 hr 6.3 hr Short day
December 9.3 hr 5.4 hr Short day

Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.

Soil Temperature & Composting in Isleton

Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.

What this means for you: Lettuce germinates at 35°F. Beans want 60°F. Tomatoes 65°F+. Soil temp, not air temp, is what plants feel. Isleton's monthly curve tells you when each crop actually has the conditions to take off.

Plant Warm Crops When

Soil reaches 60°F+

Soil warm enough from Mar through Nov.

Best Month to Compost

Apr

Microbial activity peaks when soil is warm.

Active Composting

12 months

Nearly year-round composting.

60°F 70°F 40° 58° 75° 93° 110° Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
4" depth 8" depth - - - 60°F (corn, beans) - - - 70°F (tomatoes, peppers)
View detailed monthly data
MonthSoil 4" DeepSoil 8" DeepCompost ActivityTime to Finish
Jan 50°F 56°F ♻️ Active ~14 weeks
Feb 54°F 56°F ♻️ Active ~14 weeks
Mar 61°F 62°F ♻️ Active ~14 weeks
Apr 67°F 68°F 🔥 Peak ~8 weeks
May 75°F 75°F 🔥 Peak ~8 weeks
Jun 87°F 83°F 🔥 Peak ~8 weeks
Jul 92°F 89°F 🔥 Peak ~8 weeks
Aug 95°F 90°F 🔥 Peak ~8 weeks
Sep 89°F 89°F 🔥 Peak ~8 weeks
Oct 80°F 81°F 🔥 Peak ~8 weeks
Nov 65°F 72°F 🔥 Peak ~8 weeks
Dec 57°F 62°F ♻️ Active ~14 weeks

Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.

Pest & Disease Pressure in Isleton

Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.

Quick context: Warm humid regions cycle through pest generations 3-5x faster than cold dry regions. Isleton's pest score is your early-warning system: high score means commit to disease-resistant varieties and accept some crop loss to bugs.

Insect Pest Pressure

8 / 10

High — expect multiple pest generations. Preventative measures essential.

Disease Risk

2.5 / 10

Low disease risk — dry conditions reduce fungal problems.

Seasonal Risk

Spring High
Summer High
Fall High
Winter Low
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids High Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Whiteflies High Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Spider mites High May, Jun, Jul, Aug, Sep, Oct
Fire ants High Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Thrips Moderate Apr, May, Jun, Jul, Aug
Leaf miners Moderate Mar, Apr, May, Jun
Organic pest management tips
  • Use row covers on susceptible crops during peak pest months
  • Apply neem oil preventatively every 7-14 days during active pest season
  • Interplant with strong-scented herbs (basil, marigold) to confuse pests
  • Hand-pick larger pests (beetles, caterpillars) in early morning when they're sluggish
  • Practice crop rotation — never plant the same family in the same spot within 3 years

Cover Crops for Isleton

Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with planting dates calibrated for your area.

What this means for you: You don't need a farm to use cover crops. A 4x8 raised bed accepts cover crops just as well as a half-acre. Isleton's climate determines the calendar; the principle is universal.

Spring Cover Crops (4 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat Feb 19 Sep 29 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Feb 20 Sep 22 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Feb 21 Oct 6 Massive biomass, breaks compaction, suppresses nematodes
White clover Jan 17 Oct 6 ✓ Yes Living mulch, fixes nitrogen, permanent ground cover
Summer Cover Crops (1 options) — Fill gaps and suppress weeds between plantings
Crop Plant By Terminate N-Fixing Soil Benefit
Sunflowers Mar 14 Nov 3 Deep roots break compaction, attract pollinators and beneficial insects
Fall Cover Crops (4 options) — Plant after harvest to protect soil over winter
Crop Plant By Terminate N-Fixing Soil Benefit
Austrian winter peas Sep 28 Jan 29 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Oct 6 Jan 29 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Oct 20 Jan 29 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Sep 24 Jan 29 ✓ Yes Excellent nitrogen fixer, good for depleted soils

Wind & Microclimate in Isleton

For new gardeners: Wind shapes the garden you don't think about: bee paths, evaporation, structural stress on tomato cages. Isleton's 6.6 mph background level is a baseline you should know before placing the tallest crops (sunflowers, pole beans, sweet corn).

Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.

Seasonal Wind Speed

Spring: 10 mph   Summer: 9 mph

Fall: 9 mph   Winter: 7 mph

Prevailing wind: W. Moderate wind — consider a temporary windbreak for young seedlings.

Windbreak Benefit

3.5/10

Low need — wind is not a major factor in your garden planning.

Frost Pocket Risk

Moderate

Some terrain variation (989 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.

Rainwater Harvesting in Isleton

How much water you can collect, when to collect it, and what size system you need for your garden.

What this means for you: Building a rainwater system is mostly about doing the math: roof area × annual rainfall × 0.6 = gallons you could realistically capture. For Isleton, that's your 0" times your roof.

Annual Collection

16,497 gal

Per 1,000 sq ft of roof area (at 80% collection efficiency)

Recommended Setup

6 rain barrels (55 gal each)

For a typical 500 sq ft garden. Serious collectors: consider a 2,250 gal tank.

Legal Status

Unrestricted

Rainwater harvesting is fully legal in your state with no restrictions.

Best Collection Months

Jan, Feb, Mar, Dec

Highest rainfall months — your barrels will fill up quickly during these months.

Months to Draw From Storage

May, Jun, Jul, Aug, Sep

Dry months when you'll rely on stored water — size your storage for this gap.

Rainwater collection tips for your area
  • Your county receives approximately 33.1 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 16,497 gallons annually
  • Rainwater harvesting is fully legal in your state
  • Stock up on stored water before your dry season (May, Jun, Jul)
  • Use a first-flush diverter to keep roof debris out of your collection

🥬 Vegetables to Grow in Isleton

114 vegetables matched to Zone 9b with planting dates calibrated for Isleton.

Show all 114 vegetables with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Jan 15 Feb 12 Feb 19 May 14 – Jun 18 80–100
Amaranth Jan 1 Feb 12 Feb 19 May 21 – Jul 9 90–120
Artichoke Feb 26 Jul 2 – Sep 10 120–180
Arugula Jan 15 Jan 22 Feb 12 Oct 6 Mar 19 – May 21 30–50
Asparagus Feb 26 730–1095
Beets Jan 22 Oct 6 Mar 19 – Apr 16 50–70
Belgian Endive Jan 15 Jan 22 Feb 12 Oct 6 Jun 4 – Jul 30 110–150
Bitter Melon Jan 1 Feb 12 Feb 19 Apr 23 – Jun 4 60–90
Black Beans Feb 19 May 21 – Jul 9 90–120
Bok Choy Jan 15 Jan 22 Feb 12 Oct 6 Mar 26 – Apr 30 40–60
Broccoli Jan 15 Jan 22 Feb 12 Oct 6 Apr 16 – May 28 60–90
Broccoli Rabe Jan 15 Jan 22 Feb 12 Oct 6 Mar 26 – Apr 30 40–60
Brussels Sprouts Jan 15 Jan 22 Feb 12 Oct 6 May 14 – Jul 9 90–130
Butternut Squash Jan 15 Feb 12 Feb 19 May 21 – Jun 25 85–110
Cabbage Jan 15 Jan 22 Feb 12 Oct 6 Apr 16 – Jun 11 60–100
Calabash Jan 1 Feb 12 Feb 19 May 14 – Jul 9 80–120
Cardoon Feb 26 Jul 2 – Aug 13 120–150
Carrots Jan 22 Oct 6 Mar 26 – Apr 30 60–80
Cauliflower Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – Jun 11 55–100
Celeriac Jan 15 Jan 22 Feb 12 Oct 6 May 28 – Jul 2 100–120
Celery Jan 15 Jan 22 Feb 12 Oct 6 May 7 – Jul 2 80–120
Celtuce Jan 15 Jan 22 Feb 12 Oct 6 Apr 16 – May 28 60–90
Chard Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – May 28 50–60
Chayote Jan 1 Feb 12 Feb 19 Jun 25 – Sep 3 120–180
Chickpeas Jan 15 Jan 22 Feb 12 Oct 6 May 7 – Jun 18 80–110
Chicory Jan 15 Jan 22 Feb 12 Oct 6 Apr 16 – May 28 60–85
Chinese Cabbage Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – May 7 50–70
Christmas Lima Beans Jan 1 Feb 12 Feb 19 May 14 – Jun 18 80–100
Collard Greens Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – Jun 11 55–75
Corn Feb 19 Apr 23 – Jun 18 60–100
Cowpeas Feb 19 Apr 23 – Jun 4 60–90
Cress Jan 15 Jan 22 Feb 12 Oct 6 Feb 26 – Mar 19 14–21
Crookneck Squash Jan 15 Feb 12 Feb 19 Apr 9 – May 7 45–60
Crosne Jan 22 Oct 6 Jun 25 – Aug 27 150–200
Cucumber Jan 15 Feb 12 Feb 19 Apr 16 – Jun 11 50–70
Daikon Jan 22 Oct 6 Mar 19 – Apr 16 50–70
Delicata Squash Jan 15 Feb 12 Feb 19 May 14 – Jun 18 80–100
Edamame Feb 19 May 7 – Jun 18 75–100
Eggplant Jan 1 Feb 12 Feb 19 Apr 30 – Jul 2 65–85
Endive Jan 15 Jan 22 Feb 12 Oct 6 Apr 2 – May 7 45–65
Escarole Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – May 7 50–70
Fava Beans Jan 15 Jan 22 Feb 12 Oct 6 Apr 30 – Jun 11 75–100
Fennel Jan 1 Feb 12 Feb 19 Apr 23 – Jun 4 60–90
Garlic Oct 20 Jan 19 – Jul 6 90–240
Ginger Jan 1 Feb 12 Feb 19 Oct 22 – Dec 17 240–300
Green Beans Feb 19 Apr 16 – Jun 11 50–65
Horseradish Feb 26 Jul 2 – Sep 10 120–180
Hot Peppers Jan 1 Feb 12 Feb 19 Apr 30 – Aug 6 70–120
Hubbard Squash Jan 15 Feb 12 Feb 19 Jun 4 – Jul 9 100–120
Jicama Jan 1 Feb 12 Feb 19 Jun 25 – Sep 3 120–180
Kabocha Jan 15 Feb 12 Feb 19 May 21 – Jun 18 85–100
Kai Lan Jan 15 Jan 22 Feb 12 Oct 6 Apr 2 – Apr 30 45–60
Kale Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – Jun 4 50–70
Kidney Beans Feb 19 May 21 – Jun 25 85–110
Kohlrabi Jan 15 Jan 22 Feb 12 Oct 6 Apr 2 – May 7 45–65
Komatsuna Jan 15 Jan 22 Feb 12 Oct 6 Mar 19 – Apr 23 35–50
Leeks Jan 15 Jan 22 Feb 12 Oct 6 May 14 – Jul 30 90–150
Lentils Jan 15 Jan 22 Feb 12 Oct 6 May 7 – Jun 18 80–110
Lettuce Jan 15 Jan 22 Feb 12 Oct 6 Mar 19 – May 28 30–60
Lima Beans Feb 19 Apr 23 – Jun 4 60–90
Loofah Jan 1 Feb 12 Feb 19 Jun 4 – Aug 6 100–150
Luffa Jan 1 Feb 12 Feb 19 May 21 – Aug 6 90–150
Mache Jan 15 Jan 22 Feb 12 Oct 6 Mar 26 – Apr 30 40–60
Malabar Spinach Jan 1 Feb 12 Feb 19 Apr 16 – May 14 55–70
Melon Jan 15 Feb 12 Feb 19 Apr 30 – Jun 18 70–100
Microgreens Jan 15 Jan 22 Feb 12 Oct 6 Feb 19 – Mar 19 7–21
Mitsuba Jan 15 Jan 22 Feb 5 Oct 6 Apr 2 – May 28 50–70
Mizuna Jan 15 Jan 22 Feb 12 Oct 6 Mar 19 – Apr 16 30–45
Mustard Greens Jan 15 Jan 22 Feb 12 Oct 6 Mar 19 – May 21 30–50
Napa Cabbage Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – May 14 55–75
New Zealand Spinach Jan 1 Feb 12 Feb 19 Apr 16 – May 14 55–70
Okra Jan 1 Feb 12 Feb 19 Apr 16 – Jun 11 50–65
Onion Jan 15 Jan 22 Feb 12 Oct 6 May 14 – Jul 2 90–120
Pac Choi Jan 15 Jan 22 Feb 12 Oct 6 Mar 26 – Apr 23 40–55
Parsnip Jan 22 Oct 6 May 7 – Jun 18 100–130
Patty Pan Squash Jan 15 Feb 12 Feb 19 Apr 9 – May 7 45–60
Peas Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – Jun 4 55–70
Peppers Jan 1 Feb 12 Feb 19 Apr 23 – Jul 2 60–90
Pole Beans Jan 1 Feb 12 Feb 19 Apr 16 – Jun 11 55–70
Potatoes Jan 1 Feb 12 Feb 19 Apr 30 – Jul 9 70–120
Pumpkin Jan 15 Feb 12 Feb 19 May 21 – Jul 9 85–120
Purslane Jan 15 Jan 22 Feb 12 Oct 6 Mar 26 – Apr 30 40–60
Radicchio Jan 15 Jan 22 Feb 12 Oct 6 Apr 16 – May 21 60–80
Radish Jan 22 Oct 6 Feb 19 – Mar 12 22–35
Romanesco Jan 15 Jan 22 Feb 12 Oct 6 Apr 30 – Jun 11 75–100
Rutabaga Jan 22 Oct 6 Apr 16 – May 21 80–100
Salsify Jan 22 Oct 6 May 7 – Jun 18 100–130
Savoy Cabbage Jan 15 Jan 22 Feb 12 Oct 6 Apr 23 – Jun 18 70–110
Scallions Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – May 7 50–70
Scarlet Runner Beans Jan 1 Feb 12 Feb 19 Apr 23 – May 28 60–80
Shallot Jan 15 Jan 22 Feb 12 Oct 6 May 14 – Jul 2 90–120
Shiso Jan 1 Feb 19 Feb 19 Apr 16 – Jun 11 50–70
Snap Peas Jan 1 Feb 12 Feb 19 Apr 16 – Jun 11 55–70
Snow Peas Jan 15 Jan 22 Feb 12 Oct 6 Apr 9 – Jun 4 50–65
Soybeans Feb 19 May 14 – Jul 9 80–120
Spaghetti Squash Jan 15 Feb 12 Feb 19 May 21 – Jun 18 85–100
Spinach Jan 15 Jan 22 Feb 12 Oct 6 Mar 19 – May 21 35–50
Squash (Summer) Jan 15 Feb 12 Feb 19 Apr 9 – Jun 11 45–65
Squash (Winter) Jan 15 Feb 12 Feb 19 May 14 – Jul 9 80–120
Sunchoke Feb 26 Jun 18 – Aug 13 110–150
Sweet Corn Feb 19 Apr 23 – Jun 4 60–90
Sweet Potatoes Jan 1 Feb 12 Feb 19 May 21 – Jul 9 90–120
Tatsoi Jan 15 Jan 22 Feb 12 Oct 6 Mar 19 – Apr 23 35–50
Tomatillo Jan 1 Feb 12 Feb 19 Apr 23 – Jul 2 60–85
Tomatoes Jan 1 Feb 12 Feb 19 Apr 23 – Jul 2 60–85
Turmeric Jan 1 Feb 12 Feb 19 Oct 22 – Dec 17 240–300
Turnip Jan 22 Oct 6 Mar 5 – Apr 9 40–60
Watercress Jan 15 Jan 22 Feb 12 Oct 6 Mar 26 – Apr 30 40–60
Watermelon Jan 15 Feb 12 Feb 19 Apr 30 – Jun 18 70–100
Wax Beans Feb 19 Apr 16 – Jun 11 50–65
Winter Melon Jan 1 Feb 12 Feb 19 May 21 – Jul 9 90–120
Yam Jan 1 Feb 12 Feb 19 Aug 20 – Dec 17 180–330
Yard Long Beans Jan 1 Feb 12 Feb 19 Apr 16 – May 28 55–80
Zucchini Jan 15 Feb 12 Feb 19 Apr 9 – Jun 4 45–60

🍓 Fruits to Grow in Isleton

24 fruits matched to Zone 9b with planting dates calibrated for Isleton.

Show all 24 fruits with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries Feb 26 May 28 – Sep 10 90–180
Blackberries Feb 26 365–730
Boysenberries Feb 26 365–730
Cantaloupe Feb 26 May 7 – Jun 11 70–90
Che Fruit Feb 26 1095–1825
Dragon Fruit Feb 26 365–730
Elderberries Feb 26 730–1095
Figs Feb 26 730–1825
Goji Berries Feb 26 730–1095
Grapes Feb 26 730–1095
Ground Cherry Feb 26 May 7 – Jul 2 65–80
Guava Feb 26 365–730
Honeydew Feb 26 May 21 – Jul 2 80–110
Kiwi Feb 26 1095–1825
Loquat Feb 26 730–1825
Mulberries Feb 26 730–1825
Passion Fruit Feb 26 365–545
Pawpaw Feb 26 1095–2555
Persimmon Feb 26 1095–2555
Pomegranate Feb 26 730–1095
Quince Feb 26 1095–1825
Raspberries Feb 26 365–730
Serviceberries Feb 26 730–1095
Strawberries Feb 26 May 28 – Dec 24 90–365

🌿 Herbs to Grow in Isleton

37 herbs matched to Zone 9b with planting dates calibrated for Isleton.

Show all 37 herbs with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Anise Jan 15 Jan 22 Feb 5 Oct 6 May 7 – Jul 23 90–120
Basil Jan 1 Feb 19 Feb 19 Apr 16 – Jun 18 50–75
Bee Balm Feb 19 May 21 – Aug 6 90–120
Borage Jan 15 Jan 22 Feb 5 Oct 6 Apr 2 – May 21 50–60
Caraway Jan 15 Jan 22 Feb 5 Oct 6 365–450
Catnip Feb 19 Apr 23 – Jun 25 60–80
Chamomile Jan 15 Jan 22 Feb 5 Oct 6 Apr 9 – Jun 18 60–90
Chervil Jan 15 Jan 22 Feb 5 Oct 6 Mar 19 – May 21 40–60
Chives Feb 19 Apr 23 – Jul 2 60–90
Cilantro Jan 15 Jan 22 Feb 5 Oct 6 Mar 19 – May 21 40–60
Comfrey Feb 19 Apr 23 – Jul 2 60–90
Cumin Jan 15 Jan 22 Feb 5 Oct 6 May 21 – Jul 23 100–120
Dill Jan 15 Jan 22 Feb 5 Oct 6 Mar 19 – May 21 40–60
Epazote Jan 1 Feb 19 Feb 19 Apr 9 – Jun 4 45–60
Fennel (herb) Jan 15 Jan 22 Feb 5 Oct 6 Apr 9 – Jun 18 60–90
Feverfew Feb 19 May 21 – Aug 6 90–120
Garlic Chives Feb 19 Apr 23 – Jul 2 60–90
Horehound Feb 19 May 7 – Jul 2 75–90
Hyssop Feb 19 Apr 30 – Jul 2 70–90
Lemon Balm Feb 19 Apr 23 – Jun 11 60–70
Lemon Thyme Feb 19 Apr 30 – Jul 2 70–90
Lemon Verbena Jan 1 Feb 19 Feb 19 Apr 23 – Jul 2 60–90
Lemongrass Jan 1 Feb 19 Feb 19 May 7 – Aug 6 75–120
Marjoram Feb 19 Apr 23 – Jul 2 60–90
Mint Feb 19 Apr 23 – Jul 2 60–90
Oregano Feb 19 Apr 23 – Jul 2 60–90
Parsley Jan 15 Jan 22 Feb 5 Oct 6 Apr 9 – Jun 11 60–80
Rosemary Feb 19 May 14 – Oct 1 80–180
Rue Feb 19 Apr 30 – Jul 2 70–90
Sage Feb 19 May 7 – Jul 2 75–90
Savory Feb 19 Apr 16 – Jun 11 50–70
Sorrel Jan 15 Jan 22 Feb 5 Oct 6 Mar 19 – May 21 40–60
Stevia Jan 1 Feb 19 Feb 19 Apr 23 – Jul 2 60–90
Tarragon Feb 19 Apr 23 – Jul 2 60–90
Thai Basil Jan 1 Feb 19 Feb 19 Apr 16 – Jun 18 50–75
Thyme Feb 19 Apr 30 – Jul 2 70–90
Valerian Feb 19 Jun 25 – Oct 1 120–180

🌸 Flowers to Grow in Isleton

42 flowers matched to Zone 9b with planting dates calibrated for Isleton.

Show all 42 flowers with dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Jan 1 Jan 22 Jan 22 Mar 19 – Sep 17 60–75
Alliums Nov 10 Dec 8 – Dec 29 28–42
Anemones Oct 20 Oct 20 – Nov 17 90–120
Bachelor's Button Dec 11 Jan 8 Sep 22 Mar 5 – Jun 25 60–90
Begonias Dec 4 Jan 15 Mar 26 – Oct 8 70–90
Black-eyed Susan Dec 18 Jan 22 Jan 29 Apr 9 – Aug 27 60–80
Calendula Dec 11 Jan 8 Sep 8 Feb 19 – Jun 11 50–70
California Poppy Aug 25 Nov 3 – Mar 9 60–90
Celosia Jan 15 Jan 22 Jan 22 Mar 26 – Oct 15 60–90
Coreopsis Dec 18 Jan 22 Jan 29 Mar 26 – Aug 27 60–80
Cosmos Jan 15 Jan 8 Jan 8 Mar 19 – Sep 17 60–90
Daffodils Nov 3 Oct 20 – Nov 10 20–40
Dahlias Feb 12 Feb 12 Apr 23 – Nov 5 70–120
Daylily Dec 18 Jan 29 Apr 9 – Oct 8 60–90
Dianthus Dec 18 Dec 11 Dec 11 Jan 29 – Mar 26 60–80
Echinacea (Purple Coneflower) Dec 18 Jan 29 Jan 29 Apr 9 – Aug 27 70–90
Freesia Oct 20 Oct 27 – Dec 1 84–112
Gaillardia (Blanket Flower) Jan 1 Jan 22 Jan 22 Apr 2 – Oct 1 70–100
Geraniums Dec 4 Jan 15 Mar 26 – Oct 8 70–100
Gladiolus Feb 12 Feb 12 Apr 23 – Nov 5 70–100
Hyacinths Nov 10 Nov 10 – Dec 1 14–28
Impatiens Dec 18 Jan 22 Apr 2 – Oct 1 60–75
Irises Division Jan 22 Mar 12 – Apr 16 60–100
Larkspur Sep 29 Dec 8 – Mar 16 60–90
Lavender Dec 18 Jan 22 Apr 2 – Jun 25 90–120
Lobelia Dec 18 Dec 11 Feb 5 – Mar 5 70–80
Marigolds Jan 8 Jan 22 Jan 22 Mar 19 – Sep 10 50–70
Nasturtium Jan 15 Jan 15 Jan 15 Mar 12 – Sep 24 55–65
Pansy Dec 4 Jan 8 Sep 8 Feb 26 – May 14 70–90
Petunia Dec 18 Jan 22 Apr 2 – Sep 17 70–90
Portulaca Jan 15 Jan 22 Jan 22 Mar 12 – Oct 1 50–70
Ranunculus Oct 20 Oct 27 – Nov 24 90–120
Roses Dec 18 Jan 22 Apr 2 – Oct 1 90–180
Salvia Dec 18 Jan 15 Mar 26 – Sep 24 70–90
Sedum (Stonecrop) Dec 18 Jan 22 May 14 – Jul 23 60–90
Snapdragon Dec 11 Jan 8 Sep 8 Mar 12 – Jul 23 70–100
Sunflower Jan 22 Jan 15 Jan 15 Apr 9 – Sep 24 70–100
Sweet Alyssum Dec 11 Jan 8 Sep 22 Feb 12 – May 14 45–60
Sweet Pea Sep 22 Dec 1 – Jan 12 65–85
Vinca (Annual) Dec 4 Jan 15 Mar 26 – Oct 8 70–90
Yarrow Dec 18 Jan 22 Jan 29 Mar 26 – Jul 30 60–90
Zinnia Jan 15 Jan 15 Jan 15 Mar 26 – Sep 24 60–70

Monthly Planting Guide for Isleton

ZIP Codes in Isleton

Click any ZIP to see its specific frost, soil, and climate measurements (some ZIPs differ noticeably from the town aggregate):

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in Sacramento County.

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Your Sacramento County Garden Planner — Free

A 22-page printable planner built for Sacramento County (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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The Gardener's Encyclopedia to Companion Planting

The Gardener's Encyclopedia to Companion Planting

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The pairings that make vegetables, herbs, and flowers grow better — and the ones that quietly wreck a bed.

  • Proven pairings for 200+ vegetables, herbs, flowers, and fruits
  • Full seed-starting + planting schedule with timing and spacing
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See what's inside →
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Seed Saving & Storage Guide

Seed Saving & Storage Guide

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Most saved seeds go bad before next season. This shows exactly when to pick, how to dry, and where to store seeds from 200 plants so yours don't.

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  • Bonus: searchable Google Sheets tracker + custom GPT assistant
Save a lifetime of seed money →
Composting Guide for Homesteaders

Composting Guide for Homesteaders

$27 $210 value

Turn kitchen scraps and yard waste into compost that actually feeds the garden — instead of a pile that smells, attracts pests, and never breaks down.

  • 14 sections on composting methods, soil science, and troubleshooting
  • The 7-step hot-compost system from start to finish
  • Bonus tools: troubleshooting chart, safety guide, monitoring log
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Town-level data is aggregated from per-ZIP NOAA GHCN-D measurements (1 ZIP code in Isleton), USDA SSURGO soil survey, and the US Drought Monitor weekly archive. Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: June 2026.