Del Norte County, CA — Planting Guide
Del Norte County, California gardeners: here's your May plan
We've pulled the most time-sensitive tasks for Del Norte County, California this May and put them front and centre. Tackle them in order.
-
Start basil, peppers, and pole beans under lights
Give them 6–8 weeks indoors before the last frost and you'll transplant into warm soil with seedlings that are already leaping.
-
Start harvesting basil, carrots, and cucumber
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
Looking ahead to June
- First harvests: basil, carrots, and cucumber
Del Norte County is in USDA Zone 9b. The average last spring frost is March 27 and the first fall frost is November 20, giving you a growing season of approximately 238 days.
At an elevation of 72 ft, Del Norte County receives approximately 43.8 in of rainfall annually. Summer highs average 89°F with winter lows around 40°F. The predominant soil type is Sandy Loam.
Based on 25 years of NOAA climate station data, the last frost date here varies by 90 days year to year — ranging from February 4 in warm years to May 4 in cold years. The growing season is trending longer by about 5.27 days per decade. Del Norte County scores 59/100 (Moderate) on the Microclimate Index.
🌡️ Zone
9b (°F to °F min)
❄️ Last Frost
March 27
🍂 First Frost
November 20
📅 Growing Season
238 days
⛰️ Elevation
72 ft
🌧️ Annual Rainfall
43.8 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 | 8.3 in | 9 days | — | None |
| Feb | 9.9 in | 10 days | — | Low |
| Mar | 5.8 in | 7 days | — | Low |
| Apr | 3.5 in | 5 days | 0.8 in | Moderate |
| May | 1.1 in | 1 days | 3.2 in | Critical |
| Jun | 0.3 in | 0 days | 4 in | Critical |
| Jul | 0 in | 0 days | 4.3 in | Critical |
| Aug | 0 in | 0 days | 4.3 in | Critical |
| Sep | 0.4 in | 1 days | 3.9 in | Critical |
| Oct | 1.9 in | 3 days | 2.4 in | High |
| Nov | 4.7 in | 6 days | — | Low |
| Dec | 7.9 in | 9 days | — | None |
Annual total: 43.8 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.
Del Norte County Soil Profile
Soil Type
Sandy Loam
Soil pH
5.9-7
Drainage
Well Drained
Frost Risk Probability
Based on 25 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) | May 4 | Dec 17 | 227 days |
| Cautious | Apr 7 | Nov 28 | 235 days |
| Average year | Mar 27 | Nov 20 | 238 days |
| Optimistic | Mar 5 | Oct 28 | 237 days |
| Aggressive (risky) | Feb 4 | Oct 10 | 248 days |
Not very — frost dates can vary by ±90 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 5.3 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.
Gardening Difficulty Score
Del Norte County presents some gardening challenges. Choose adapted varieties and plan around frost dates.
Local Gardening Help in Del Norte 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 Del Norte County's climate and soil.
County Extension Office
Del Norte 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 Del Norte County
Finding local nurseries & garden centers in Del Norte County
Why Buy Local
Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to Del Norte 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 Del Norte County CA" or "garden center Del Norte 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 Del Norte County CA" or check your extension office and local parks department. Facebook groups like "Del Norte 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
Sunlight & Day Length
Monthly daylight hours and peak sun — critical for onion varieties, photoperiod-sensitive plants, and solar garden planning.
Longest Day
15 hours
Summer solstice daylight
Shortest Day
9 hours
Winter solstice daylight
Peak Sun Hours
13.7 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 | 9.3 hr | 5.3 hr | Short day |
| February | 10.4 hr | 6.2 hr | Short day |
| March | 11.7 hr | 7.8 hr | Short day |
| April | 13.1 hr | 9.7 hr | Neutral |
| May | 14.4 hr | 11 hr | Long day |
| June | 15 hr | 12.9 hr | Long day |
| July | 14.7 hr | 13.7 hr | Long day |
| August | 13.7 hr | 12.4 hr | Neutral |
| September | 12.3 hr | 10.3 hr | Neutral |
| October | 10.8 hr | 8 hr | Short day |
| November | 9.6 hr | 6.2 hr | Short day |
| December | 9 hr | 4.7 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 | 44°F | 51°F | 🐢 Slow | ~24 weeks |
| Feb | 46°F | 51°F | 🐢 Slow | ~24 weeks |
| Mar | 50°F | 54°F | 🐢 Slow | ~24 weeks |
| Apr | 62°F | 61°F | ♻️ Active | ~14 weeks |
| May | 71°F | 69°F | 🔥 Peak | ~8 weeks |
| Jun | 83°F | 76°F | 🔥 Peak | ~8 weeks |
| Jul | 88°F | 84°F | 🔥 Peak | ~8 weeks |
| Aug | 89°F | 86°F | 🔥 Peak | ~8 weeks |
| Sep | 83°F | 83°F | 🔥 Peak | ~8 weeks |
| Oct | 74°F | 77°F | 🔥 Peak | ~8 weeks |
| Nov | 62°F | 67°F | ♻️ Active | ~14 weeks |
| Dec | 50°F | 57°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 Del Norte County
Computed from local climate patterns — warmer, humid conditions increase pest generations and fungal disease risk.
Insect Pest Pressure
High — expect multiple pest generations. Preventative measures essential.
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 | Moderate | May, Jun, Jul, Aug, Sep, Oct |
| Spider mites | High | Jun, Jul, Aug, Sep |
| Fire ants | Moderate | Mar, Apr, May, Jun, Jul, Aug, Sep, Oct |
Organic pest management tips
- Install physical barriers: floating row covers, copper tape for slugs, mesh netting
- Apply Bt (Bacillus thuringiensis) for caterpillar control — safe for beneficial insects
- Use kaolin clay spray to deter a wide range of insects on fruiting crops
- Release beneficial insects: ladybugs for aphids, parasitic wasps for caterpillars
- Apply neem oil weekly during high-pressure months
- Mulch heavily (3-4 inches) to reduce soil-borne disease splash
Cover Crops for Del Norte 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 | Mar 30 | Sep 11 | — | Rapid growth, attracts pollinators, suppresses weeds |
| Cowpeas (southern peas) | Apr 2 | Sep 11 | ✓ Yes | Excellent nitrogen fixer for warm climates, edible |
| Sorghum-sudan grass | Apr 1 | Sep 25 | — | Massive biomass, breaks compaction, suppresses nematodes |
| White clover | Mar 2 | Sep 11 | ✓ 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 | Apr 22 | Nov 6 | — | 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 | Sep 20 | Mar 13 | ✓ Yes | Fixes nitrogen, good for heavy clay soils |
| Crimson clover | Sep 11 | Mar 6 | ✓ Yes | Fixes nitrogen, attracts pollinators in spring |
| Daikon radish | Oct 6 | Mar 13 | — | Deep taproot breaks compaction, excellent for clay soils |
| Hairy vetch | Sep 1 | Mar 6 | ✓ Yes | Excellent nitrogen fixer, good for depleted soils |
| Oats | Oct 7 | Mar 6 | — | Quick biomass, winterkills in cold zones — no spring tillage needed |
| Winter rye | Aug 28 | Mar 6 | — | Suppresses weeds, prevents erosion, breaks up compacted soil |
| Winter wheat | Aug 29 | Mar 6 | — | 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: 12 mph Summer: 11 mph
Fall: 9 mph Winter: 11 mph
Prevailing wind: W. Moderate wind — consider a temporary windbreak for young seedlings.
Windbreak Benefit
4.5/10
Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.
Frost Pocket Risk
Moderate
Some terrain variation (451 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
21,829 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 43.8 inches of rain per year
- A 1,000 sq ft roof can collect roughly 21,829 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 Del Norte County
Soil Type
Sandy Loam
Soil pH 5.9–7 · Well Drained drainage
Native soil is well-suited to most vegetables and herbs with regular compost additions.
Watering Needs
Drought stress: 3.5/10
Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (43.8 in. annual rainfall)
Season Tips
238-day frost-free season
Plenty of time for warm-season crops. Start heat-lovers indoors 6–8 weeks before last frost to maximise your harvest window.
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 Del Norte County
115 vegetables that grow well in Zone 9b with planting dates for Del Norte County.
Show all 115 vegetables with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Acorn Squash | Feb 27 | Mar 27 | Apr 3 | Jun 26 – Jul 31 | 80–100 |
| Amaranth | Feb 13 | Mar 27 | Apr 3 | Jul 3 – Aug 21 | 90–120 |
| Artichoke | — | — | Apr 10 | Aug 14 – Oct 23 | 120–180 |
| Arugula | Feb 27 | Mar 6 | Mar 27 | May 1 – Jul 3 | 30–50 |
| Asparagus | — | — | Apr 10 | — | 730–1095 |
| Beets | — | Mar 6 | — | May 1 – May 29 | 50–70 |
| Belgian Endive | Feb 27 | Mar 6 | Mar 27 | Jul 17 – Sep 11 | 110–150 |
| Bitter Melon | Feb 13 | Mar 27 | Apr 3 | Jun 5 – Jul 17 | 60–90 |
| Black Beans | — | Apr 3 | — | Jul 3 – Aug 21 | 90–120 |
| Bok Choy | Feb 27 | Mar 6 | Mar 27 | May 8 – Jun 12 | 40–60 |
| Broccoli | Feb 27 | Mar 6 | Mar 27 | May 29 – Jul 10 | 60–90 |
| Broccoli Rabe | Feb 27 | Mar 6 | Mar 27 | May 8 – Jun 12 | 40–60 |
| Brussels Sprouts | Feb 27 | Mar 6 | Mar 27 | Jun 26 – Aug 21 | 90–130 |
| Butternut Squash | Feb 27 | Mar 27 | Apr 3 | Jul 3 – Aug 7 | 85–110 |
| Cabbage | Feb 27 | Mar 6 | Mar 27 | May 29 – Jul 24 | 60–100 |
| Calabash | Feb 13 | Mar 27 | Apr 3 | Jun 26 – Aug 21 | 80–120 |
| Cardoon | — | — | Apr 10 | Aug 14 – Sep 25 | 120–150 |
| Carrots | — | Mar 6 | — | May 8 – Jun 12 | 60–80 |
| Cauliflower | Feb 27 | Mar 6 | Mar 27 | May 22 – Jul 24 | 55–100 |
| Celeriac | Feb 27 | Mar 6 | Mar 27 | Jul 10 – Aug 14 | 100–120 |
| Celery | Feb 27 | Mar 6 | Mar 27 | Jun 19 – Aug 14 | 80–120 |
| Celtuce | Feb 27 | Mar 6 | Mar 27 | May 29 – Jul 10 | 60–90 |
| Chard | Feb 27 | Mar 6 | Mar 27 | May 22 – Jul 10 | 50–60 |
| Chayote | Feb 13 | Mar 27 | Apr 3 | Aug 7 – Oct 16 | 120–180 |
| Chickpeas | Feb 27 | Mar 6 | Mar 27 | Jun 19 – Jul 31 | 80–110 |
| Chicory | Feb 27 | Mar 6 | Mar 27 | May 29 – Jul 10 | 60–85 |
| Chinese Cabbage | Feb 27 | Mar 6 | Mar 27 | May 22 – Jun 19 | 50–70 |
| Christmas Lima Beans | Feb 13 | Mar 27 | Apr 3 | Jun 26 – Jul 31 | 80–100 |
| Collard Greens | Feb 27 | Mar 6 | Mar 27 | May 22 – Jul 24 | 55–75 |
| Corn | — | Apr 3 | — | Jun 5 – Jul 31 | 60–100 |
| Cowpeas | — | Apr 3 | — | Jun 5 – Jul 17 | 60–90 |
| Cress | Feb 27 | Mar 6 | Mar 27 | Apr 10 – May 1 | 14–21 |
| Crookneck Squash | Feb 27 | Mar 27 | Apr 3 | May 22 – Jun 19 | 45–60 |
| Crosne | — | Mar 6 | — | Aug 7 – Oct 9 | 150–200 |
| Cucumber | Feb 27 | Mar 27 | Apr 3 | May 29 – Jul 24 | 50–70 |
| Daikon | — | Mar 6 | — | May 1 – May 29 | 50–70 |
| Delicata Squash | Feb 27 | Mar 27 | Apr 3 | Jun 26 – Jul 31 | 80–100 |
| Edamame | — | Apr 3 | — | Jun 19 – Jul 31 | 75–100 |
| Eggplant | Feb 13 | Mar 27 | Apr 3 | Jun 12 – Aug 14 | 65–85 |
| Endive | Feb 27 | Mar 6 | Mar 27 | May 15 – Jun 19 | 45–65 |
| Escarole | Feb 27 | Mar 6 | Mar 27 | May 22 – Jun 19 | 50–70 |
| Fava Beans | Feb 27 | Mar 6 | Mar 27 | Jun 12 – Jul 24 | 75–100 |
| Fennel | Feb 13 | Mar 27 | Apr 3 | Jun 5 – Jul 17 | 60–90 |
| Garlic | — | — | — | — | 90–240 |
| Ginger | Feb 13 | Mar 27 | Apr 3 | Dec 4 – Jan 29 | 240–300 |
| Green Beans | — | Apr 3 | — | May 29 – Jul 24 | 50–65 |
| Horseradish | — | — | Apr 10 | Aug 14 – Oct 23 | 120–180 |
| Hot Peppers | Feb 13 | Mar 27 | Apr 3 | Jun 12 – Sep 18 | 70–120 |
| Hubbard Squash | Feb 27 | Mar 27 | Apr 3 | Jul 17 – Aug 21 | 100–120 |
| Jicama | Feb 13 | Mar 27 | Apr 3 | Aug 7 – Oct 16 | 120–180 |
| Kabocha | Feb 27 | Mar 27 | Apr 3 | Jul 3 – Jul 31 | 85–100 |
| Kai Lan | Feb 27 | Mar 6 | Mar 27 | May 15 – Jun 12 | 45–60 |
| Kale | Feb 27 | Mar 6 | Mar 27 | May 22 – Jul 17 | 50–70 |
| Kidney Beans | — | Apr 3 | — | Jul 3 – Aug 7 | 85–110 |
| Kohlrabi | Feb 27 | Mar 6 | Mar 27 | May 15 – Jun 19 | 45–65 |
| Komatsuna | Feb 27 | Mar 6 | Mar 27 | May 1 – Jun 5 | 35–50 |
| Leeks | Feb 27 | Mar 6 | Mar 27 | Jun 26 – Sep 11 | 90–150 |
| Lentils | Feb 27 | Mar 6 | Mar 27 | Jun 19 – Jul 31 | 80–110 |
| Lettuce | Feb 27 | Mar 6 | Mar 27 | May 1 – Jul 10 | 30–60 |
| Lima Beans | — | Apr 3 | — | Jun 5 – Jul 17 | 60–90 |
| Loofah | Feb 13 | Mar 27 | Apr 3 | Jul 17 – Sep 18 | 100–150 |
| Luffa | Feb 13 | Mar 27 | Apr 3 | Jul 3 – Sep 18 | 90–150 |
| Mache | Feb 27 | Mar 6 | Mar 27 | May 8 – Jun 12 | 40–60 |
| Malabar Spinach | Feb 13 | Mar 27 | Apr 3 | May 29 – Jun 26 | 55–70 |
| Melon | Feb 27 | Mar 27 | Apr 3 | Jun 12 – Jul 31 | 70–100 |
| Microgreens | Feb 27 | Mar 6 | Mar 27 | Apr 3 – May 1 | 7–21 |
| Mitsuba | Feb 27 | Mar 6 | Mar 20 | May 15 – Jul 10 | 50–70 |
| Mizuna | Feb 27 | Mar 6 | Mar 27 | May 1 – May 29 | 30–45 |
| Mustard Greens | Feb 27 | Mar 6 | Mar 27 | May 1 – Jul 3 | 30–50 |
| Napa Cabbage | Feb 27 | Mar 6 | Mar 27 | May 22 – Jun 26 | 55–75 |
| New Zealand Spinach | Feb 13 | Mar 27 | Apr 3 | May 29 – Jun 26 | 55–70 |
| Okra | Feb 13 | Mar 27 | Apr 3 | May 29 – Jul 24 | 50–65 |
| Onion | Feb 27 | Mar 6 | Mar 27 | Jun 26 – Aug 14 | 90–120 |
| Pac Choi | Feb 27 | Mar 6 | Mar 27 | May 8 – Jun 5 | 40–55 |
| Parsnip | — | Mar 6 | — | Jun 19 – Jul 31 | 100–130 |
| Patty Pan Squash | Feb 27 | Mar 27 | Apr 3 | May 22 – Jun 19 | 45–60 |
| Peas | Feb 27 | Mar 6 | Mar 27 | May 22 – Jul 17 | 55–70 |
| Peppers | Feb 13 | Mar 27 | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Pole Beans | Feb 13 | Mar 27 | Apr 3 | May 29 – Jul 24 | 55–70 |
| Potatoes | Feb 13 | Mar 27 | Apr 3 | Jun 12 – Aug 21 | 70–120 |
| Pumpkin | Feb 27 | Mar 27 | Apr 3 | Jul 3 – Aug 21 | 85–120 |
| Purslane | Feb 27 | Mar 6 | Mar 27 | May 8 – Jun 12 | 40–60 |
| Radicchio | Feb 27 | Mar 6 | Mar 27 | May 29 – Jul 3 | 60–80 |
| Radish | — | Mar 6 | — | Apr 3 – Apr 24 | 22–35 |
| Romanesco | Feb 27 | Mar 6 | Mar 27 | Jun 12 – Jul 24 | 75–100 |
| Rutabaga | — | Mar 6 | — | May 29 – Jul 3 | 80–100 |
| Salsify | — | Mar 6 | — | Jun 19 – Jul 31 | 100–130 |
| Savoy Cabbage | Feb 27 | Mar 6 | Mar 27 | Jun 5 – Jul 31 | 70–110 |
| Scallions | Feb 27 | Mar 6 | Mar 27 | May 22 – Jun 19 | 50–70 |
| Scarlet Runner Beans | Feb 13 | Mar 27 | Apr 3 | Jun 5 – Jul 10 | 60–80 |
| Shallot | Feb 27 | Mar 6 | Mar 27 | Jun 26 – Aug 14 | 90–120 |
| Shiso | Feb 13 | Apr 3 | Apr 3 | May 29 – Jul 24 | 50–70 |
| Snap Peas | Feb 13 | Mar 27 | Apr 3 | May 29 – Jul 24 | 55–70 |
| Snow Peas | Feb 27 | Mar 6 | Mar 27 | May 22 – Jul 17 | 50–65 |
| Soybeans | — | Apr 3 | — | Jun 26 – Aug 21 | 80–120 |
| Spaghetti Squash | Feb 27 | Mar 27 | Apr 3 | Jul 3 – Jul 31 | 85–100 |
| Spinach | Feb 27 | Mar 6 | Mar 27 | May 1 – Jul 3 | 35–50 |
| Squash (Summer) | Feb 27 | Mar 27 | Apr 3 | May 22 – Jul 24 | 45–65 |
| Squash (Winter) | Feb 27 | Mar 27 | Apr 3 | Jun 26 – Aug 21 | 80–120 |
| Sunchoke | — | — | Apr 10 | Jul 31 – Sep 25 | 110–150 |
| Sunflower | Feb 13 | Mar 27 | Apr 3 | Jun 12 – Jul 31 | 70–100 |
| Sweet Corn | — | Apr 3 | — | Jun 5 – Jul 17 | 60–90 |
| Sweet Potatoes | Feb 13 | Mar 27 | Apr 3 | Jul 3 – Aug 21 | 90–120 |
| Tatsoi | Feb 27 | Mar 6 | Mar 27 | May 1 – Jun 5 | 35–50 |
| Tomatillo | Feb 13 | Mar 27 | Apr 3 | Jun 5 – Aug 14 | 60–85 |
| Tomatoes | Feb 13 | Mar 27 | Apr 3 | Jun 5 – Aug 14 | 60–85 |
| Turmeric | Feb 13 | Mar 27 | Apr 3 | Dec 4 – Jan 29 | 240–300 |
| Turnip | — | Mar 6 | — | Apr 17 – May 22 | 40–60 |
| Watercress | Feb 27 | Mar 6 | Mar 27 | May 8 – Jun 12 | 40–60 |
| Watermelon | Feb 27 | Mar 27 | Apr 3 | Jun 12 – Jul 31 | 70–100 |
| Wax Beans | — | Apr 3 | — | May 29 – Jul 24 | 50–65 |
| Winter Melon | Feb 13 | Mar 27 | Apr 3 | Jul 3 – Aug 21 | 90–120 |
| Yam | Feb 13 | Mar 27 | Apr 3 | Oct 2 – Jan 29 | 180–330 |
| Yard Long Beans | Feb 13 | Mar 27 | Apr 3 | May 29 – Jul 10 | 55–80 |
| Zucchini | Feb 27 | Mar 27 | Apr 3 | May 22 – Jul 17 | 45–60 |
🍓 Fruits to Grow in Del Norte County
24 fruits that grow well in Zone 9b with planting dates for Del Norte County.
Show all 24 fruits with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Alpine Strawberries | — | — | Apr 10 | Jul 10 – Oct 23 | 90–180 |
| Blackberries | — | — | Apr 10 | — | 365–730 |
| Boysenberries | — | — | Apr 10 | — | 365–730 |
| Cantaloupe | — | — | Apr 10 | Jun 19 – Jul 24 | 70–90 |
| Che Fruit | — | — | Apr 10 | — | 1095–1825 |
| Dragon Fruit | — | — | Apr 10 | — | 365–730 |
| Elderberries | — | — | Apr 10 | — | 730–1095 |
| Figs | — | — | Apr 10 | — | 730–1825 |
| Goji Berries | — | — | Apr 10 | — | 730–1095 |
| Grapes | — | — | Apr 10 | — | 730–1095 |
| Ground Cherry | — | — | Apr 10 | Jun 19 – Aug 14 | 65–80 |
| Guava | — | — | Apr 10 | — | 365–730 |
| Honeydew | — | — | Apr 10 | Jul 3 – Aug 14 | 80–110 |
| Kiwi | — | — | Apr 10 | — | 1095–1825 |
| Loquat | — | — | Apr 10 | — | 730–1825 |
| Mulberries | — | — | Apr 10 | — | 730–1825 |
| Passion Fruit | — | — | Apr 10 | — | 365–545 |
| Pawpaw | — | — | Apr 10 | — | 1095–2555 |
| Persimmon | — | — | Apr 10 | — | 1095–2555 |
| Pomegranate | — | — | Apr 10 | — | 730–1095 |
| Quince | — | — | Apr 10 | — | 1095–1825 |
| Raspberries | — | — | Apr 10 | — | 365–730 |
| Serviceberries | — | — | Apr 10 | — | 730–1095 |
| Strawberries | — | — | Apr 10 | Jul 10 – Feb 5 | 90–365 |
🌿 Herbs to Grow in Del Norte County
40 herbs that grow well in Zone 9b with planting dates for Del Norte County.
Show all 40 herbs with planting dates
| Plant | Start Indoors | Direct Sow | Transplant | Harvest | Days to Maturity |
|---|---|---|---|---|---|
| Anise | Feb 27 | Mar 6 | Mar 20 | Jun 19 – Sep 4 | 90–120 |
| Basil | Feb 13 | Apr 3 | Apr 3 | May 29 – Jul 31 | 50–75 |
| Bee Balm | — | — | Apr 3 | Jul 3 – Sep 18 | 90–120 |
| Borage | Feb 27 | Mar 6 | Mar 20 | May 15 – Jul 3 | 50–60 |
| Caraway | Feb 27 | Mar 6 | Mar 20 | — | 365–450 |
| Catnip | — | — | Apr 3 | Jun 5 – Aug 7 | 60–80 |
| Chamomile | Feb 27 | Mar 6 | Mar 20 | May 22 – Jul 31 | 60–90 |
| Chervil | Feb 27 | Mar 6 | Mar 20 | May 1 – Jul 3 | 40–60 |
| Chives | — | — | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Cilantro | Feb 27 | Mar 6 | Mar 20 | May 1 – Jul 3 | 40–60 |
| Comfrey | — | — | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Cumin | Feb 27 | Mar 6 | Mar 20 | Jul 3 – Sep 4 | 100–120 |
| Dill | Feb 27 | Mar 6 | Mar 20 | May 1 – Jul 3 | 40–60 |
| Echinacea | — | — | Apr 3 | Aug 7 – Nov 13 | 120–180 |
| Epazote | Feb 13 | Apr 3 | Apr 3 | May 22 – Jul 17 | 45–60 |
| Fennel (herb) | Feb 27 | Mar 6 | Mar 20 | May 22 – Jul 31 | 60–90 |
| Feverfew | — | — | Apr 3 | Jul 3 – Sep 18 | 90–120 |
| Garlic Chives | — | — | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Horehound | — | — | Apr 3 | Jun 19 – Aug 14 | 75–90 |
| Hyssop | — | — | Apr 3 | Jun 12 – Aug 14 | 70–90 |
| Lavender | — | — | Apr 3 | Jul 3 – Dec 4 | 90–200 |
| Lemon Balm | — | — | Apr 3 | Jun 5 – Jul 24 | 60–70 |
| Lemon Thyme | — | — | Apr 3 | Jun 12 – Aug 14 | 70–90 |
| Lemon Verbena | Feb 13 | Apr 3 | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Lemongrass | Feb 13 | Apr 3 | Apr 3 | Jun 19 – Sep 18 | 75–120 |
| Marjoram | — | — | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Mint | — | — | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Oregano | — | — | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Parsley | Feb 27 | Mar 6 | Mar 20 | May 22 – Jul 24 | 60–80 |
| Rosemary | — | — | Apr 3 | Jun 26 – Nov 13 | 80–180 |
| Rue | — | — | Apr 3 | Jun 12 – Aug 14 | 70–90 |
| Sage | — | — | Apr 3 | Jun 19 – Aug 14 | 75–90 |
| Savory | — | — | Apr 3 | May 29 – Jul 24 | 50–70 |
| Sorrel | Feb 27 | Mar 6 | Mar 20 | May 1 – Jul 3 | 40–60 |
| Stevia | Feb 13 | Apr 3 | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Tarragon | — | — | Apr 3 | Jun 5 – Aug 14 | 60–90 |
| Thai Basil | Feb 13 | Apr 3 | Apr 3 | May 29 – Jul 31 | 50–75 |
| Thyme | — | — | Apr 3 | Jun 12 – Aug 14 | 70–90 |
| Valerian | — | — | Apr 3 | Aug 7 – Nov 13 | 120–180 |
| Yarrow | — | — | Apr 3 | Jul 3 – Sep 18 | 90–120 |
Monthly Planting Guide for Del Norte County
Gardening Guides & Resources
Helpful guides from The Ultimate Homestead to improve your garden in Del Norte County.
Frequently Asked Questions
What planting zone is Del Norte County, CA?
Del Norte County is in USDA Hardiness Zone 9b. 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 Del Norte County, CA?
Based on 25 years of NOAA weather station data, the median last spring frost in Del Norte County falls around March 27. In 8 out of 10 years, last frost lands between February 4 and May 4 — a 90-day window of variability. Use May 4 as your conservative safe-to-plant date for frost-sensitive crops.
When is the first fall frost in Del Norte County, CA?
The median first fall frost in Del Norte County arrives around November 20. In cold years it can arrive as early as October 10; in mild years as late as December 17. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.
How long is the growing season in Del Norte County?
Del Norte County has a frost-free growing season of approximately 238 days. This long season supports multiple succession plantings and warm-season crops that need extended heat, like sweet potatoes and melons. Climate records show the growing season is trending longer by about 5.27 days per decade.
What is the soil like in Del Norte County for gardening?
Del Norte County has predominantly Sandy Loam soil with a pH range of 5.9–7 and Well Drained drainage. Most vegetables and herbs grow well with standard composting and seasonal soil amendment.
What is grown commercially in Del Norte County?
Del Norte County has commercial agriculture that includes Almonds, Grapes, Cattle, Hay. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.
Is Del Norte County a good location for home gardening?
Del Norte 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 Del Norte County Garden Planner — Free
A 24-page printable planner built for Del Norte 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.
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