Shasta County, CA — Planting Guide
May in the garden — Shasta County, California
Each item below is timed to Shasta County, California's frost dates and soil temperatures. Skip nothing, stress about nothing.
-
Transplant anise, borage, and caraway outside
Harden off for 7 days — a little more sun each day — before planting. That's the difference between a seedling that thrives and one that stalls.
-
Plant carrots, kale, and lettuce from seed, right in the garden
Your soil is 70°F — warm enough for these to germinate without babying.
Before June arrives, get these ready
- Transplants going out: basil, cucumber, and kale
- Direct-sowing: basil, cucumber, and green beans
- First harvests: radish, cress, and microgreens
Shasta County is in USDA Zone 9a. The average last spring frost is June 6 and the first fall frost is September 21, giving you a growing season of approximately 107 days.
At an elevation of 81 ft, Shasta County receives approximately 40.5 in of rainfall annually. Summer highs average 85°F with winter lows around 42°F. The predominant soil type is Sandy Loam.
Based on 29 years of NOAA climate station data, the last frost date here varies by 45 days year to year — ranging from May 8 in warm years to June 22 in cold years. The growing season is trending longer by about 1.54 days per decade. Shasta County scores 59/100 (Moderate) on the Microclimate Index.
🌡️ Zone
9a (°F to °F min)
❄️ Last Frost
June 6
🍂 First Frost
September 21
📅 Growing Season
107 days
⛰️ Elevation
81 ft
🌧️ Annual Rainfall
40.5 in
Monthly Watering Calendar
When you'll need to water your garden — based on average monthly rainfall vs. the ~1 inch/week most gardens need.
View detailed monthly data
| Month | Avg Rainfall | Rainy Days | Extra Water Needed | Watering Effort |
|---|---|---|---|---|
| Jan | 7.7 in | 8 days | — | None |
| Feb | 8 in | 10 days | — | Low |
| Mar | 6.8 in | 8 days | — | Low |
| Apr | 3.2 in | 5 days | 1.1 in | Moderate |
| May | 1 in | 2 days | 3.3 in | Critical |
| Jun | 0.2 in | 0 days | 4.1 in | Critical |
| Jul | 0 in | 0 days | 4.3 in | Critical |
| Aug | 0 in | 0 days | 4.3 in | Critical |
| Sep | 0.4 in | 0 days | 3.9 in | Critical |
| Oct | 1.6 in | 2 days | 2.7 in | High |
| Nov | 4.4 in | 5 days | — | Low |
| Dec | 7.1 in | 9 days | — | None |
Annual total: 40.4 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.
Shasta County Soil Profile
Soil Type
Sandy Loam
Soil pH
5.7-6.8
Drainage
Well Drained
Frost Risk Probability
Based on 29 years of NOAA weather station data from 3 stations
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) | Jun 22 | Oct 10 | 110 days |
| Cautious | Jun 11 | Oct 3 | 114 days |
| Average year | Jun 6 | Sep 21 | 107 days |
| Optimistic | May 23 | Sep 13 | 113 days |
| Aggressive (risky) | May 8 | Aug 31 | 115 days |
Not very — frost dates can vary by ±45 days year-to-year. Use the "Conservative" row in the table below, and keep row covers handy for surprise late frosts.
Yes — growing seasons are getting longer here (about 1.5 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Shasta County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Shasta 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 Shasta County's climate and soil.
County Extension Office
Shasta 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.
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.
Services Available in Shasta County
Finding local nurseries & garden centers in Shasta County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Shasta 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 Shasta County CA" or "garden center Shasta 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 Shasta County CA" or check your extension office and local parks department. Facebook groups like "Shasta 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.
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
14.9 hours
Summer solstice daylight
Shortest Day
9.1 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.
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
| Month | Daylight Hours | Peak Sun Hours | Day Length |
|---|---|---|---|
| January | 9.4 hr | 5.2 hr | Short day |
| February | 10.4 hr | 6 hr | Short day |
| March | 11.7 hr | 7.2 hr | Short day |
| April | 13.1 hr | 9.6 hr | Neutral |
| May | 14.3 hr | 11.3 hr | Long day |
| June | 14.9 hr | 13.6 hr | Long day |
| July | 14.6 hr | 13.1 hr | Long day |
| August | 13.6 hr | 12.4 hr | Neutral |
| September | 12.3 hr | 10.1 hr | Neutral |
| October | 10.9 hr | 8.2 hr | Short day |
| November | 9.7 hr | 5.9 hr | Short day |
| December | 9.1 hr | 4.9 hr | Short day |
Peak sun hours factor in typical cloud cover — use these for solar panel and shade-planning calculations.
Soil Temperature & Composting Calendar
Monthly soil temps tell you when to plant warm-season crops, and when your compost pile is actively working.
Plant Warm Crops When
Soil reaches 60°F+
Soil warm enough from Apr through Nov.
Best Month to Compost
May
Microbial activity peaks when soil is warm.
Active Composting
9 months
Nearly year-round composting.
View detailed monthly data
| Month | Soil 4" Deep | Soil 8" Deep | Compost Activity | Time to Finish |
|---|---|---|---|---|
| Jan | 42°F | 50°F | 🐢 Slow | ~24 weeks |
| Feb | 43°F | 51°F | 🐢 Slow | ~24 weeks |
| Mar | 51°F | 56°F | ♻️ Active | ~14 weeks |
| Apr | 60°F | 62°F | ♻️ Active | ~14 weeks |
| May | 70°F | 69°F | 🔥 Peak | ~8 weeks |
| Jun | 81°F | 77°F | 🔥 Peak | ~8 weeks |
| Jul | 91°F | 84°F | 🔥 Peak | ~8 weeks |
| Aug | 90°F | 85°F | 🔥 Peak | ~8 weeks |
| Sep | 83°F | 83°F | 🔥 Peak | ~8 weeks |
| Oct | 71°F | 75°F | 🔥 Peak | ~8 weeks |
| Nov | 61°F | 65°F | ♻️ Active | ~14 weeks |
| Dec | 49°F | 57°F | 🐢 Slow | ~24 weeks |
Highlighted rows = soil 60°F+ (safe for warm-season transplants). Compost finishes fastest during peak activity months.
Pest & Disease Pressure in Shasta County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
Moderate — common pests appear but manageable with monitoring.
Disease Risk
High fungal/bacterial risk. Space plants for airflow, water at soil level.
Seasonal Risk
View 6 common pests in your area
| Pest | Risk Level | Peak Months |
|---|---|---|
| Aphids | High | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov |
| Squash vine borers | High | May, Jun, Jul |
| Stink bugs | High | Apr, May, Jun, Jul, Aug, Sep, Oct |
| Whiteflies | High | May, Jun, Jul, Aug, Sep, Oct |
| Spider mites | Moderate | Jun, Jul, Aug, Sep |
| Fire ants | Moderate | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
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
- Watch for powdery mildew, downy mildew, blight — common in your climate
Cover Crops for Shasta County
Cover crops protect bare soil, fix nitrogen, suppress weeds, and improve soil structure — with county-specific planting dates.
Spring Cover Crops (4 options) — Build soil before the main growing season
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Buckwheat | Jun 12 | Jul 20 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Jun 18 | Jul 13 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Jun 13 | Jul 27 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | May 10 | Jul 27 | ✓ 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 | Jul 3 | Sep 7 | — | Deep roots break compaction, attract pollinators and beneficial insects |
Fall Cover Crops (7 options) — Plant after harvest to protect soil over winter
| Crop | Plant By | Terminate | N-Fixing | Soil Benefit |
|---|---|---|---|---|
| Austrian winter peas | Jul 11 | May 16 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Jul 24 | May 23 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Aug 2 | May 23 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Jun 29 | May 23 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Aug 18 | May 23 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Jul 1 | May 16 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Jun 13 | May 16 | — | Erosion control, weed suppression, good biomass |
Wind & Microclimate
Wind dries soil, stresses plants, and affects frost patterns. Understanding your exposure helps with garden placement.
Seasonal Wind Speed
Spring: 11 mph Summer: 10 mph
Fall: 7 mph Winter: 11 mph
Prevailing wind: W. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.9/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (913 ft range). Garden on slopes or higher ground if possible to avoid late-season frost pockets.
Rainwater Harvesting Potential
How much water you can collect, when to collect it, and what size system you need for your garden.
Annual Collection
20,135 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 2,500 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
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 40.4 inches of rain per year
- A 1,000 sq ft roof can collect roughly 20,135 gallons annually
- Rainwater harvesting is fully legal in your state
- Stock up on stored water before your dry season (Jun, Jul, Aug)
- Use a first-flush diverter to keep roof debris out of your collection
Soil & Growing Conditions in Shasta County
Soil Type
Sandy Loam
Soil pH 5.7–6.8 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 7.5/10
High drought stress. Consistent irrigation is essential — consider drip systems, heavy mulch, and drought-tolerant varieties.
Season Tips
107-day frost-free season
A short season means indoor starts are critical for warm-season crops. Prioritise cold-hardy, fast-maturing varieties and use row covers to extend autumn harvests.
Your Free Printable Garden Planner
Plan every bed, every planting, every harvest — in one place. This 24-page printable includes your zone's planting calendar, a month-by-month task list, a seed inventory tracker, a harvest log, and succession-planting charts. Built to print, write in, and actually use all season.
Recommended for Your Garden
Reduce heat stress and sun scorch in hot climates with UV-stabilized shade cloth.
Retain moisture and nutrients in sandy soils with expanded vermiculite.
Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.
🥬 Vegetables to Grow in Shasta County
115 vegetables that grow well in Zone 9a with planting dates for Shasta County.
Show all 115 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | May 9 | Jun 6 | Jun 13 | Sep 5 – Oct 10 | 80–100 |
| Amaranth | Apr 25 | Jun 6 | Jun 13 | Sep 12 – Oct 31 | 90–120 |
| Artichoke | — | — | Jun 20 | Oct 24 – Jan 2 | 120–180 |
| Arugula | May 9 | May 16 | Jun 6 | Jul 11 – Sep 12 | 30–50 |
| Asparagus | — | — | Jun 20 | — | 730–1095 |
| Beets | — | May 16 | — | Jul 11 – Aug 8 | 50–70 |
| Belgian Endive | May 9 | May 16 | Jun 6 | Sep 26 – Nov 21 | 110–150 |
| Bitter Melon | Apr 25 | Jun 6 | Jun 13 | Aug 15 – Sep 26 | 60–90 |
| Black Beans | — | Jun 13 | — | Sep 12 – Oct 31 | 90–120 |
| Bok Choy | May 9 | May 16 | Jun 6 | Jul 18 – Aug 22 | 40–60 |
| Broccoli | May 9 | May 16 | Jun 6 | Aug 8 – Sep 19 | 60–90 |
| Broccoli Rabe | May 9 | May 16 | Jun 6 | Jul 18 – Aug 22 | 40–60 |
| Brussels Sprouts | May 9 | May 16 | Jun 6 | Sep 5 – Oct 31 | 90–130 |
| Butternut Squash | May 9 | Jun 6 | Jun 13 | Sep 12 – Oct 17 | 85–110 |
| Cabbage | May 9 | May 16 | Jun 6 | Aug 8 – Oct 3 | 60–100 |
| Calabash | Apr 25 | Jun 6 | Jun 13 | Sep 5 – Oct 31 | 80–120 |
| Cardoon | — | — | Jun 20 | Oct 24 – Dec 5 | 120–150 |
| Carrots | — | May 16 | — | Jul 18 – Aug 22 | 60–80 |
| Cauliflower | May 9 | May 16 | Jun 6 | Aug 1 – Oct 3 | 55–100 |
| Celeriac | May 9 | May 16 | Jun 6 | Sep 19 – Oct 24 | 100–120 |
| Celery | May 9 | May 16 | Jun 6 | Aug 29 – Oct 24 | 80–120 |
| Celtuce | May 9 | May 16 | Jun 6 | Aug 8 – Sep 19 | 60–90 |
| Chard | May 9 | May 16 | Jun 6 | Aug 1 – Sep 19 | 50–60 |
| Chayote | Apr 25 | Jun 6 | Jun 13 | Oct 17 – Dec 26 | 120–180 |
| Chickpeas | May 9 | May 16 | Jun 6 | Aug 29 – Oct 10 | 80–110 |
| Chicory | May 9 | May 16 | Jun 6 | Aug 8 – Sep 19 | 60–85 |
| Chinese Cabbage | May 9 | May 16 | Jun 6 | Aug 1 – Aug 29 | 50–70 |
| Christmas Lima Beans | Apr 25 | Jun 6 | Jun 13 | Sep 5 – Oct 10 | 80–100 |
| Collard Greens | May 9 | May 16 | Jun 6 | Aug 1 – Oct 3 | 55–75 |
| Corn | — | Jun 13 | — | Aug 15 – Oct 10 | 60–100 |
| Cowpeas | — | Jun 13 | — | Aug 15 – Sep 26 | 60–90 |
| Cress | May 9 | May 16 | Jun 6 | Jun 20 – Jul 11 | 14–21 |
| Crookneck Squash | May 9 | Jun 6 | Jun 13 | Aug 1 – Aug 29 | 45–60 |
| Crosne | — | May 16 | — | Oct 17 – Dec 19 | 150–200 |
| Cucumber | May 9 | Jun 6 | Jun 13 | Aug 8 – Oct 3 | 50–70 |
| Daikon | — | May 16 | — | Jul 11 – Aug 8 | 50–70 |
| Delicata Squash | May 9 | Jun 6 | Jun 13 | Sep 5 – Oct 10 | 80–100 |
| Edamame | — | Jun 13 | — | Aug 29 – Oct 10 | 75–100 |
| Eggplant | Apr 25 | Jun 6 | Jun 13 | Aug 22 – Oct 24 | 65–85 |
| Endive | May 9 | May 16 | Jun 6 | Jul 25 – Aug 29 | 45–65 |
| Escarole | May 9 | May 16 | Jun 6 | Aug 1 – Aug 29 | 50–70 |
| Fava Beans | May 9 | May 16 | Jun 6 | Aug 22 – Oct 3 | 75–100 |
| Fennel | Apr 25 | Jun 6 | Jun 13 | Aug 15 – Sep 26 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Ginger | Apr 25 | Jun 6 | Jun 13 | Feb 13 – Apr 10 | 240–300 |
| Green Beans | — | Jun 13 | — | Aug 8 – Oct 3 | 50–65 |
| Horseradish | — | — | Jun 20 | Oct 24 – Jan 2 | 120–180 |
| Hot Peppers | Apr 25 | Jun 6 | Jun 13 | Aug 22 – Nov 28 | 70–120 |
| Hubbard Squash | May 9 | Jun 6 | Jun 13 | Sep 26 – Oct 31 | 100–120 |
| Jicama | Apr 25 | Jun 6 | Jun 13 | Oct 17 – Dec 26 | 120–180 |
| Kabocha | May 9 | Jun 6 | Jun 13 | Sep 12 – Oct 10 | 85–100 |
| Kai Lan | May 9 | May 16 | Jun 6 | Jul 25 – Aug 22 | 45–60 |
| Kale | May 9 | May 16 | Jun 6 | Aug 1 – Sep 26 | 50–70 |
| Kidney Beans | — | Jun 13 | — | Sep 12 – Oct 17 | 85–110 |
| Kohlrabi | May 9 | May 16 | Jun 6 | Jul 25 – Aug 29 | 45–65 |
| Komatsuna | May 9 | May 16 | Jun 6 | Jul 11 – Aug 15 | 35–50 |
| Leeks | May 9 | May 16 | Jun 6 | Sep 5 – Nov 21 | 90–150 |
| Lentils | May 9 | May 16 | Jun 6 | Aug 29 – Oct 10 | 80–110 |
| Lettuce | May 9 | May 16 | Jun 6 | Jul 11 – Sep 19 | 30–60 |
| Lima Beans | — | Jun 13 | — | Aug 15 – Sep 26 | 60–90 |
| Loofah | Apr 25 | Jun 6 | Jun 13 | Sep 26 – Nov 28 | 100–150 |
| Luffa | Apr 25 | Jun 6 | Jun 13 | Sep 12 – Nov 28 | 90–150 |
| Mache | May 9 | May 16 | Jun 6 | Jul 18 – Aug 22 | 40–60 |
| Malabar Spinach | Apr 25 | Jun 6 | Jun 13 | Aug 8 – Sep 5 | 55–70 |
| Melon | May 9 | Jun 6 | Jun 13 | Aug 22 – Oct 10 | 70–100 |
| Microgreens | May 9 | May 16 | Jun 6 | Jun 13 – Jul 11 | 7–21 |
| Mitsuba | May 9 | May 16 | May 30 | Jul 25 – Sep 19 | 50–70 |
| Mizuna | May 9 | May 16 | Jun 6 | Jul 11 – Aug 8 | 30–45 |
| Mustard Greens | May 9 | May 16 | Jun 6 | Jul 11 – Sep 12 | 30–50 |
| Napa Cabbage | May 9 | May 16 | Jun 6 | Aug 1 – Sep 5 | 55–75 |
| New Zealand Spinach | Apr 25 | Jun 6 | Jun 13 | Aug 8 – Sep 5 | 55–70 |
| Okra | Apr 25 | Jun 6 | Jun 13 | Aug 8 – Oct 3 | 50–65 |
| Onion | May 9 | May 16 | Jun 6 | Sep 5 – Oct 24 | 90–120 |
| Pac Choi | May 9 | May 16 | Jun 6 | Jul 18 – Aug 15 | 40–55 |
| Parsnip | — | May 16 | — | Aug 29 – Oct 10 | 100–130 |
| Patty Pan Squash | May 9 | Jun 6 | Jun 13 | Aug 1 – Aug 29 | 45–60 |
| Peas | May 9 | May 16 | Jun 6 | Aug 1 – Sep 26 | 55–70 |
| Peppers | Apr 25 | Jun 6 | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Pole Beans | Apr 25 | Jun 6 | Jun 13 | Aug 8 – Oct 3 | 55–70 |
| Potatoes | Apr 25 | Jun 6 | Jun 13 | Aug 22 – Oct 31 | 70–120 |
| Pumpkin | May 9 | Jun 6 | Jun 13 | Sep 12 – Oct 31 | 85–120 |
| Purslane | May 9 | May 16 | Jun 6 | Jul 18 – Aug 22 | 40–60 |
| Radicchio | May 9 | May 16 | Jun 6 | Aug 8 – Sep 12 | 60–80 |
| Radish | — | May 16 | — | Jun 13 – Jul 4 | 22–35 |
| Romanesco | May 9 | May 16 | Jun 6 | Aug 22 – Oct 3 | 75–100 |
| Rutabaga | — | May 16 | — | Aug 8 – Sep 12 | 80–100 |
| Salsify | — | May 16 | — | Aug 29 – Oct 10 | 100–130 |
| Savoy Cabbage | May 9 | May 16 | Jun 6 | Aug 15 – Oct 10 | 70–110 |
| Scallions | May 9 | May 16 | Jun 6 | Aug 1 – Aug 29 | 50–70 |
| Scarlet Runner Beans | Apr 25 | Jun 6 | Jun 13 | Aug 15 – Sep 19 | 60–80 |
| Shallot | May 9 | May 16 | Jun 6 | Sep 5 – Oct 24 | 90–120 |
| Shiso | Apr 25 | Jun 13 | Jun 13 | Aug 8 – Oct 3 | 50–70 |
| Snap Peas | Apr 25 | Jun 6 | Jun 13 | Aug 8 – Oct 3 | 55–70 |
| Snow Peas | May 9 | May 16 | Jun 6 | Aug 1 – Sep 26 | 50–65 |
| Soybeans | — | Jun 13 | — | Sep 5 – Oct 31 | 80–120 |
| Spaghetti Squash | May 9 | Jun 6 | Jun 13 | Sep 12 – Oct 10 | 85–100 |
| Spinach | May 9 | May 16 | Jun 6 | Jul 11 – Sep 12 | 35–50 |
| Squash (Summer) | May 9 | Jun 6 | Jun 13 | Aug 1 – Oct 3 | 45–65 |
| Squash (Winter) | May 9 | Jun 6 | Jun 13 | Sep 5 – Oct 31 | 80–120 |
| Sunchoke | — | — | Jun 20 | Oct 10 – Dec 5 | 110–150 |
| Sunflower | Apr 25 | Jun 6 | Jun 13 | Aug 22 – Oct 10 | 70–100 |
| Sweet Corn | — | Jun 13 | — | Aug 15 – Sep 26 | 60–90 |
| Sweet Potatoes | Apr 25 | Jun 6 | Jun 13 | Sep 12 – Oct 31 | 90–120 |
| Tatsoi | May 9 | May 16 | Jun 6 | Jul 11 – Aug 15 | 35–50 |
| Tomatillo | Apr 25 | Jun 6 | Jun 13 | Aug 15 – Oct 24 | 60–85 |
| Tomatoes | Apr 25 | Jun 6 | Jun 13 | Aug 15 – Oct 24 | 60–85 |
| Turmeric | Apr 25 | Jun 6 | Jun 13 | Feb 13 – Apr 10 | 240–300 |
| Turnip | — | May 16 | — | Jun 27 – Aug 1 | 40–60 |
| Watercress | May 9 | May 16 | Jun 6 | Jul 18 – Aug 22 | 40–60 |
| Watermelon | May 9 | Jun 6 | Jun 13 | Aug 22 – Oct 10 | 70–100 |
| Wax Beans | — | Jun 13 | — | Aug 8 – Oct 3 | 50–65 |
| Winter Melon | Apr 25 | Jun 6 | Jun 13 | Sep 12 – Oct 31 | 90–120 |
| Yam | Apr 25 | Jun 6 | Jun 13 | Dec 12 – Apr 10 | 180–330 |
| Yard Long Beans | Apr 25 | Jun 6 | Jun 13 | Aug 8 – Sep 19 | 55–80 |
| Zucchini | May 9 | Jun 6 | Jun 13 | Aug 1 – Sep 26 | 45–60 |
🍓 Fruits to Grow in Shasta County
24 fruits that grow well in Zone 9a with planting dates for Shasta County.
Show all 24 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Jun 20 | Sep 19 – Jan 2 | 90–180 |
| Blackberries | — | — | Jun 20 | — | 365–730 |
| Boysenberries | — | — | Jun 20 | — | 365–730 |
| Cantaloupe | — | — | Jun 20 | Aug 29 – Oct 3 | 70–90 |
| Che Fruit | — | — | Jun 20 | — | 1095–1825 |
| Dragon Fruit | — | — | Jun 20 | — | 365–730 |
| Elderberries | — | — | Jun 20 | — | 730–1095 |
| Figs | — | — | Jun 20 | — | 730–1825 |
| Goji Berries | — | — | Jun 20 | — | 730–1095 |
| Grapes | — | — | Jun 20 | — | 730–1095 |
| Ground Cherry | — | — | Jun 20 | Aug 29 – Oct 24 | 65–80 |
| Guava | — | — | Jun 20 | — | 365–730 |
| Honeydew | — | — | Jun 20 | Sep 12 – Oct 24 | 80–110 |
| Kiwi | — | — | Jun 20 | — | 1095–1825 |
| Loquat | — | — | Jun 20 | — | 730–1825 |
| Mulberries | — | — | Jun 20 | — | 730–1825 |
| Passion Fruit | — | — | Jun 20 | — | 365–545 |
| Pawpaw | — | — | Jun 20 | — | 1095–2555 |
| Persimmon | — | — | Jun 20 | — | 1095–2555 |
| Pomegranate | — | — | Jun 20 | — | 730–1095 |
| Quince | — | — | Jun 20 | — | 1095–1825 |
| Raspberries | — | — | Jun 20 | — | 365–730 |
| Serviceberries | — | — | Jun 20 | — | 730–1095 |
| Strawberries | — | — | Jun 20 | Sep 19 – Apr 17 | 90–365 |
🌿 Herbs to Grow in Shasta County
40 herbs that grow well in Zone 9a with planting dates for Shasta County.
Show all 40 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Anise | May 9 | May 16 | May 30 | Aug 29 – Nov 14 | 90–120 |
| Basil | Apr 25 | Jun 13 | Jun 13 | Aug 8 – Oct 10 | 50–75 |
| Bee Balm | — | — | Jun 13 | Sep 12 – Nov 28 | 90–120 |
| Borage | May 9 | May 16 | May 30 | Jul 25 – Sep 12 | 50–60 |
| Caraway | May 9 | May 16 | May 30 | — | 365–450 |
| Catnip | — | — | Jun 13 | Aug 15 – Oct 17 | 60–80 |
| Chamomile | May 9 | May 16 | May 30 | Aug 1 – Oct 10 | 60–90 |
| Chervil | May 9 | May 16 | May 30 | Jul 11 – Sep 12 | 40–60 |
| Chives | — | — | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Cilantro | May 9 | May 16 | May 30 | Jul 11 – Sep 12 | 40–60 |
| Comfrey | — | — | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Cumin | May 9 | May 16 | May 30 | Sep 12 – Nov 14 | 100–120 |
| Dill | May 9 | May 16 | May 30 | Jul 11 – Sep 12 | 40–60 |
| Echinacea | — | — | Jun 13 | Oct 17 – Jan 23 | 120–180 |
| Epazote | Apr 25 | Jun 13 | Jun 13 | Aug 1 – Sep 26 | 45–60 |
| Fennel (herb) | May 9 | May 16 | May 30 | Aug 1 – Oct 10 | 60–90 |
| Feverfew | — | — | Jun 13 | Sep 12 – Nov 28 | 90–120 |
| Garlic Chives | — | — | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Horehound | — | — | Jun 13 | Aug 29 – Oct 24 | 75–90 |
| Hyssop | — | — | Jun 13 | Aug 22 – Oct 24 | 70–90 |
| Lavender | — | — | Jun 13 | Sep 12 – Feb 13 | 90–200 |
| Lemon Balm | — | — | Jun 13 | Aug 15 – Oct 3 | 60–70 |
| Lemon Thyme | — | — | Jun 13 | Aug 22 – Oct 24 | 70–90 |
| Lemon Verbena | Apr 25 | Jun 13 | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Lemongrass | Apr 25 | Jun 13 | Jun 13 | Aug 29 – Nov 28 | 75–120 |
| Marjoram | — | — | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Mint | — | — | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Oregano | — | — | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Parsley | May 9 | May 16 | May 30 | Aug 1 – Oct 3 | 60–80 |
| Rosemary | — | — | Jun 13 | Sep 5 – Jan 23 | 80–180 |
| Rue | — | — | Jun 13 | Aug 22 – Oct 24 | 70–90 |
| Sage | — | — | Jun 13 | Aug 29 – Oct 24 | 75–90 |
| Savory | — | — | Jun 13 | Aug 8 – Oct 3 | 50–70 |
| Sorrel | May 9 | May 16 | May 30 | Jul 11 – Sep 12 | 40–60 |
| Stevia | Apr 25 | Jun 13 | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Tarragon | — | — | Jun 13 | Aug 15 – Oct 24 | 60–90 |
| Thai Basil | Apr 25 | Jun 13 | Jun 13 | Aug 8 – Oct 10 | 50–75 |
| Thyme | — | — | Jun 13 | Aug 22 – Oct 24 | 70–90 |
| Valerian | — | — | Jun 13 | Oct 17 – Jan 23 | 120–180 |
| Yarrow | — | — | Jun 13 | Sep 12 – Nov 28 | 90–120 |
Monthly Planting Guide for Shasta County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Shasta County.
Frequently Asked Questions
What planting zone is Shasta County, CA?
Shasta County is in USDA Hardiness Zone 9a. This zone classification determines which perennial plants survive winter and sets the baseline for frost timing across the county.
When is the last frost in Shasta County, CA?
Based on 29 years of NOAA weather station data, the median last spring frost in Shasta County falls around June 6. In 8 out of 10 years, last frost lands between May 8 and June 22 — a 45-day window of variability. Use June 22 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Shasta County, CA?
The median first fall frost in Shasta County arrives around September 21. In cold years it can arrive as early as August 31; in mild years as late as October 10. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Shasta County?
Shasta County has a frost-free growing season of approximately 107 days. Focus on short-season varieties and start warm-season crops indoors 6–8 weeks before last frost. Climate records show the growing season is trending longer by about 1.54 days per decade.
What is the soil like in Shasta County for gardening?
Shasta County has predominantly Sandy Loam soil with a pH range of 5.7–6.8 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Shasta County?
Shasta County has commercial agriculture that includes Grapes, Hay, Almonds. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Shasta County a good location for home gardening?
Shasta County scores 59/100 (Moderate) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Conditions here are moderate — most common crops grow well with standard timing and care.
Your Shasta County Garden Planner — Free
A 24-page printable planner built for Shasta County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.
The Gardener's Encyclopedia to Companion Planting
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
- Bonus: square-foot gardening guide + printable seasonal planners
Seed Saving & Storage Guide
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.
- 200 plants, step-by-step: life cycle, pollination type, isolation
- Exact temperature + humidity ranges that keep seeds viable
- Bonus: searchable Google Sheets tracker + custom GPT assistant
Composting Guide for Homesteaders
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