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St. Bernard Parish, LA — Planting Guide

St. Bernard Parish, Louisiana Zone 9b May

Your May planting checklist for St. Bernard Parish, Louisiana

Each item below is timed to St. Bernard Parish, Louisiana's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost February 2
Avg. first frost December 11
Soil temp (4") 78°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Harvest basil, cucumber, and green beans as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Coming up in June — start thinking about
  • First harvests: basil, cucumber, and green beans

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St. Bernard Parish is in USDA Zone 9b. The average last spring frost is February 2 and the first fall frost is December 11, giving you a growing season of approximately 313 days.

At an elevation of 455 ft, St. Bernard Parish receives approximately 51.7 in of rainfall annually. Summer highs average 104°F with winter lows around 42°F. The predominant soil type is Sandy Loam.

Based on 24 years of NOAA climate station data, the last frost date here varies by 49 days year to year — ranging from January 15 in warm years to March 5 in cold years. The growing season is trending longer by about 5.7 days per decade. St. Bernard Parish scores 50/100 (Moderate) on the Microclimate Index.

🌡️ Zone

9b (°F to °F min)

❄️ Last Frost

February 2

🍂 First Frost

December 11

📅 Growing Season

313 days

⛰️ Elevation

455 ft

🌧️ Annual Rainfall

51.7 in

St. Bernard Parish, LA Year-round
312 days
Last Spring Frost February 2
312 growing days
First Fall Frost December 11

Monthly Watering Calendar

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

1"/wk 0" 1.5" 3" 4.4" 5.9" Jan 4.6" Feb 4.4" Mar 5.3" Apr 4" May 4.4" Jun 4.8" Jul 5.9" Aug 4.2" +0.7" Sep 3.6" +1.2" Oct 3.1" Nov 3.9" Dec 3.5"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 4.6 in 11 days None
Feb 4.4 in 9 days Low
Mar 5.3 in 8 days Low
Apr 4 in 7 days 0.3 in Low
May 4.4 in 9 days Low
Jun 4.8 in 10 days Low
Jul 5.9 in 11 days Low
Aug 4.2 in 10 days 0.1 in Low
Sep 3.6 in 7 days 0.7 in Moderate
Oct 3.1 in 6 days 1.2 in Moderate
Nov 3.9 in 9 days 0.4 in Low
Dec 3.5 in 9 days None

Annual total: 51.7 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.

St. Bernard Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

5.2-6.5

Drainage

Well Drained

Frost Risk Probability

Based on 24 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Feb 2 → Dec 11 313 frost-free days Protect crops frost returns Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: Mar 5 Protect by: Dec 25

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) Mar 5 Dec 25 295 days
Cautious Feb 13 Dec 20 310 days
Average year Feb 2 Dec 11 312 days
Optimistic Jan 22 Dec 6 318 days
Aggressive (risky) Jan 15 Nov 20 309 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±49 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 longer here (about 5.7 days per decade). Spring is arriving earlier than it used to. Good news for gardeners.

Gardening Difficulty Score

50 Moderate
Frost Timing Risk
10.0/10
Drought Risk
3.5/10
Soil Difficulty
4.0/10
Altitude Challenge
0.0/10
Climate Shift
10.0/10
Rainfall Challenge
2.7/10

St. Bernard Parish presents some gardening challenges. Choose adapted varieties and plan around frost dates.

Zone 9b Frost Countdown
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Loading...
Last Frost: Feb 2 First Frost: Dec 11

Local Gardening Help in St. Bernard Parish

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 St. Bernard Parish's climate and soil.

County Extension Office

St. Bernard Parish LSU AgCenter Extension Extension Office

Phone: 225-578-4161

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 LA →

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 St. Bernard Parish

Soil testing Subtropical gardening Pest management
Finding local nurseries & garden centers in St. Bernard Parish

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to St. Bernard Parish'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 St. Bernard Parish LA" or "garden center St. Bernard Parish" 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 St. Bernard Parish LA" or check your extension office and local parks department. Facebook groups like "St. Bernard Parish Gardeners" or "Louisiana 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.

After Squash (Summer) (harvest ends Jun 1) 193 days until frost
After Cantaloupe (harvest ends Jun 1) 193 days until frost
After Snap Peas (harvest ends Jun 1) 193 days until frost
After Potatoes (harvest ends Jun 29) 165 days until frost
Show 6 more succession options
After Eggplant (harvest ends Jun 22) 172 days until frost
After Zucchini (harvest ends May 25) 200 days until frost
After Carrots (harvest ends May 11) 214 days until frost
After Cabbage (harvest ends Jun 1) 193 days until frost
After Tomatoes (harvest ends Jun 22) 172 days until frost
After Cauliflower (harvest ends Jun 1) 193 days until frost

Sunlight & Day Length

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

Longest Day

13.9 hours

Summer solstice daylight

Shortest Day

10.1 hours

Winter solstice daylight

Peak Sun Hours

8.7 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.

14hr 12hr 3h 6h 9h 12h 15h 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 shorter days favor short-day onion varieties like Vidalia, Texas 1015, and Red Creole. Plant in fall for best results.

View detailed monthly data
MonthDaylight HoursPeak Sun HoursDay Length
January 10.3 hr 5.3 hr Short day
February 11 hr 6 hr Short day
March 11.8 hr 6.7 hr Short day
April 12.7 hr 7.6 hr Neutral
May 13.5 hr 8.7 hr Neutral
June 13.9 hr 7.8 hr Neutral
July 13.7 hr 7.6 hr Neutral
August 13.1 hr 7 hr Neutral
September 12.2 hr 7.3 hr Neutral
October 11.3 hr 7 hr Short day
November 10.5 hr 5.9 hr Short day
December 10.1 hr 4.8 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 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 53°F 60°F ♻️ Active ~14 weeks
Feb 55°F 58°F ♻️ Active ~14 weeks
Mar 61°F 61°F ♻️ Active ~14 weeks
Apr 69°F 67°F 🔥 Peak ~8 weeks
May 78°F 75°F 🔥 Peak ~8 weeks
Jun 88°F 83°F 🔥 Peak ~8 weeks
Jul 96°F 89°F 🔥 Peak ~8 weeks
Aug 94°F 92°F 🔥 Peak ~8 weeks
Sep 89°F 89°F 🔥 Peak ~8 weeks
Oct 79°F 81°F 🔥 Peak ~8 weeks
Nov 68°F 74°F 🔥 Peak ~8 weeks
Dec 55°F 64°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 St. Bernard Parish

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

Insect Pest Pressure

8.5 / 10

High — expect multiple pest generations. Preventative measures essential.

Disease Risk

9 / 10

High fungal/bacterial risk. Space plants for airflow, water at soil level.

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 Moderate Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Thrips Moderate Apr, May, Jun, Jul, Aug
Leaf miners Low Mar, Apr, May, Jun
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 St. Bernard Parish

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 Feb 4 Oct 16 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Feb 9 Oct 9 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Feb 8 Oct 2 Massive biomass, breaks compaction, suppresses nematodes
White clover Jan 5 Oct 2 ✓ 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 1 Nov 27 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 29 Jan 12 ✓ Yes Fixes nitrogen, good for heavy clay soils
Crimson clover Oct 12 Jan 19 ✓ Yes Fixes nitrogen, attracts pollinators in spring
Daikon radish Oct 25 Jan 12 Deep taproot breaks compaction, excellent for clay soils
Hairy vetch Sep 21 Jan 19 ✓ Yes Excellent nitrogen fixer, good for depleted soils

Wind & Microclimate

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

Seasonal Wind Speed

Spring: 10 mph   Summer: 8 mph

Fall: 9 mph   Winter: 9 mph

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

Windbreak Benefit

5.4/10

Moderately beneficial — a simple fence or trellis can protect delicate crops from wind stress.

Frost Pocket Risk

Low

Relatively flat terrain (213 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting Potential

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

Annual Collection

25,767 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 500 gal tank.

Legal Status

Unrestricted

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

Best Collection Months

Jan, Mar, Jun, Jul

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

Months to Draw From Storage

Sep, Oct, Dec

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 51.7 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 25,767 gallons annually
  • Rainwater harvesting is fully legal in your state
  • Your area gets ample rainfall — even small barrels make a big difference
  • Consider a rain garden to handle overflow during heavy rainfall months

Soil & Growing Conditions in St. Bernard Parish

Soil Type

Sandy Loam

Soil pH 5.2–6.5 · Somewhat Poorly Drained drainage

Raised beds strongly recommended here — native soil drainage or texture limits in-ground options.

Watering Needs

Drought stress: 3.5/10

Low-to-moderate drought stress. Plan to water 1–2 times per week during peak summer. (51.7 in. annual rainfall)

Season Tips

313-day frost-free season

Your long season supports multiple successions and heat-demanding crops like melons, sweet potatoes, and peppers. Plant warm-season crops as soon as soil warms.

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.

Instant PDF download. No spam, unsubscribe any time.

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Recommended for Your Garden

☀️
Garden Shade Cloth $15-35

Reduce heat stress and sun scorch in hot climates with UV-stabilized shade cloth.

🫧
Vermiculite $12-22

Retain moisture and nutrients in sandy soils with expanded vermiculite.

🧪
Soil Test Kit $12-25

Test your soil pH, nitrogen, phosphorus, and potassium levels before planting.

🥬 Vegetables to Grow in St. Bernard Parish

115 vegetables that grow well in Zone 9b with planting dates for St. Bernard Parish.

Show all 115 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Acorn Squash Jan 5 Feb 2 Feb 9 May 4 – Jun 8 80–100
Amaranth Dec 22 Feb 2 Feb 9 May 11 – Jun 29 90–120
Artichoke Feb 16 Jun 22 – Aug 31 120–180
Arugula Jan 5 Jan 12 Feb 2 Mar 9 – May 11 30–50
Asparagus Feb 16 730–1095
Beets Jan 12 Mar 9 – Apr 6 50–70
Belgian Endive Jan 5 Jan 12 Feb 2 May 25 – Jul 20 110–150
Bitter Melon Dec 22 Feb 2 Feb 9 Apr 13 – May 25 60–90
Black Beans Feb 9 May 11 – Jun 29 90–120
Bok Choy Jan 5 Jan 12 Feb 2 Mar 16 – Apr 20 40–60
Broccoli Jan 5 Jan 12 Feb 2 Apr 6 – May 18 60–90
Broccoli Rabe Jan 5 Jan 12 Feb 2 Mar 16 – Apr 20 40–60
Brussels Sprouts Jan 5 Jan 12 Feb 2 May 4 – Jun 29 90–130
Butternut Squash Jan 5 Feb 2 Feb 9 May 11 – Jun 15 85–110
Cabbage Jan 5 Jan 12 Feb 2 Apr 6 – Jun 1 60–100
Calabash Dec 22 Feb 2 Feb 9 May 4 – Jun 29 80–120
Cardoon Feb 16 Jun 22 – Aug 3 120–150
Carrots Jan 12 Mar 16 – Apr 20 60–80
Cauliflower Jan 5 Jan 12 Feb 2 Mar 30 – Jun 1 55–100
Celeriac Jan 5 Jan 12 Feb 2 May 18 – Jun 22 100–120
Celery Jan 5 Jan 12 Feb 2 Apr 27 – Jun 22 80–120
Celtuce Jan 5 Jan 12 Feb 2 Apr 6 – May 18 60–90
Chard Jan 5 Jan 12 Feb 2 Mar 30 – May 18 50–60
Chayote Dec 22 Feb 2 Feb 9 Jun 15 – Aug 24 120–180
Chickpeas Jan 5 Jan 12 Feb 2 Apr 27 – Jun 8 80–110
Chicory Jan 5 Jan 12 Feb 2 Apr 6 – May 18 60–85
Chinese Cabbage Jan 5 Jan 12 Feb 2 Mar 30 – Apr 27 50–70
Christmas Lima Beans Dec 22 Feb 2 Feb 9 May 4 – Jun 8 80–100
Collard Greens Jan 5 Jan 12 Feb 2 Mar 30 – Jun 1 55–75
Corn Feb 9 Apr 13 – Jun 8 60–100
Cowpeas Feb 9 Apr 13 – May 25 60–90
Cress Jan 5 Jan 12 Feb 2 Feb 16 – Mar 9 14–21
Crookneck Squash Jan 5 Feb 2 Feb 9 Mar 30 – Apr 27 45–60
Crosne Jan 12 Jun 15 – Aug 17 150–200
Cucumber Jan 5 Feb 2 Feb 9 Apr 6 – Jun 1 50–70
Daikon Jan 12 Mar 9 – Apr 6 50–70
Delicata Squash Jan 5 Feb 2 Feb 9 May 4 – Jun 8 80–100
Edamame Feb 9 Apr 27 – Jun 8 75–100
Eggplant Dec 22 Feb 2 Feb 9 Apr 20 – Jun 22 65–85
Endive Jan 5 Jan 12 Feb 2 Mar 23 – Apr 27 45–65
Escarole Jan 5 Jan 12 Feb 2 Mar 30 – Apr 27 50–70
Fava Beans Jan 5 Jan 12 Feb 2 Apr 20 – Jun 1 75–100
Fennel Dec 22 Feb 2 Feb 9 Apr 13 – May 25 60–90
Garlic 90–240
Ginger Dec 22 Feb 2 Feb 9 Oct 12 – Dec 7 240–300
Green Beans Feb 9 Apr 6 – Jun 1 50–65
Horseradish Feb 16 Jun 22 – Aug 31 120–180
Hot Peppers Dec 22 Feb 2 Feb 9 Apr 20 – Jul 27 70–120
Hubbard Squash Jan 5 Feb 2 Feb 9 May 25 – Jun 29 100–120
Jicama Dec 22 Feb 2 Feb 9 Jun 15 – Aug 24 120–180
Kabocha Jan 5 Feb 2 Feb 9 May 11 – Jun 8 85–100
Kai Lan Jan 5 Jan 12 Feb 2 Mar 23 – Apr 20 45–60
Kale Jan 5 Jan 12 Feb 2 Mar 30 – May 25 50–70
Kidney Beans Feb 9 May 11 – Jun 15 85–110
Kohlrabi Jan 5 Jan 12 Feb 2 Mar 23 – Apr 27 45–65
Komatsuna Jan 5 Jan 12 Feb 2 Mar 9 – Apr 13 35–50
Leeks Jan 5 Jan 12 Feb 2 May 4 – Jul 20 90–150
Lentils Jan 5 Jan 12 Feb 2 Apr 27 – Jun 8 80–110
Lettuce Jan 5 Jan 12 Feb 2 Mar 9 – May 18 30–60
Lima Beans Feb 9 Apr 13 – May 25 60–90
Loofah Dec 22 Feb 2 Feb 9 May 25 – Jul 27 100–150
Luffa Dec 22 Feb 2 Feb 9 May 11 – Jul 27 90–150
Mache Jan 5 Jan 12 Feb 2 Mar 16 – Apr 20 40–60
Malabar Spinach Dec 22 Feb 2 Feb 9 Apr 6 – May 4 55–70
Melon Jan 5 Feb 2 Feb 9 Apr 20 – Jun 8 70–100
Microgreens Jan 5 Jan 12 Feb 2 Feb 9 – Mar 9 7–21
Mitsuba Jan 5 Jan 12 Jan 26 Mar 23 – May 18 50–70
Mizuna Jan 5 Jan 12 Feb 2 Mar 9 – Apr 6 30–45
Mustard Greens Jan 5 Jan 12 Feb 2 Mar 9 – May 11 30–50
Napa Cabbage Jan 5 Jan 12 Feb 2 Mar 30 – May 4 55–75
New Zealand Spinach Dec 22 Feb 2 Feb 9 Apr 6 – May 4 55–70
Okra Dec 22 Feb 2 Feb 9 Apr 6 – Jun 1 50–65
Onion Jan 5 Jan 12 Feb 2 May 4 – Jun 22 90–120
Pac Choi Jan 5 Jan 12 Feb 2 Mar 16 – Apr 13 40–55
Parsnip Jan 12 Apr 27 – Jun 8 100–130
Patty Pan Squash Jan 5 Feb 2 Feb 9 Mar 30 – Apr 27 45–60
Peas Jan 5 Jan 12 Feb 2 Mar 30 – May 25 55–70
Peppers Dec 22 Feb 2 Feb 9 Apr 13 – Jun 22 60–90
Pole Beans Dec 22 Feb 2 Feb 9 Apr 6 – Jun 1 55–70
Potatoes Dec 22 Feb 2 Feb 9 Apr 20 – Jun 29 70–120
Pumpkin Jan 5 Feb 2 Feb 9 May 11 – Jun 29 85–120
Purslane Jan 5 Jan 12 Feb 2 Mar 16 – Apr 20 40–60
Radicchio Jan 5 Jan 12 Feb 2 Apr 6 – May 11 60–80
Radish Jan 12 Feb 9 – Mar 2 22–35
Romanesco Jan 5 Jan 12 Feb 2 Apr 20 – Jun 1 75–100
Rutabaga Jan 12 Apr 6 – May 11 80–100
Salsify Jan 12 Apr 27 – Jun 8 100–130
Savoy Cabbage Jan 5 Jan 12 Feb 2 Apr 13 – Jun 8 70–110
Scallions Jan 5 Jan 12 Feb 2 Mar 30 – Apr 27 50–70
Scarlet Runner Beans Dec 22 Feb 2 Feb 9 Apr 13 – May 18 60–80
Shallot Jan 5 Jan 12 Feb 2 May 4 – Jun 22 90–120
Shiso Dec 22 Feb 9 Feb 9 Apr 6 – Jun 1 50–70
Snap Peas Dec 22 Feb 2 Feb 9 Apr 6 – Jun 1 55–70
Snow Peas Jan 5 Jan 12 Feb 2 Mar 30 – May 25 50–65
Soybeans Feb 9 May 4 – Jun 29 80–120
Spaghetti Squash Jan 5 Feb 2 Feb 9 May 11 – Jun 8 85–100
Spinach Jan 5 Jan 12 Feb 2 Mar 9 – May 11 35–50
Squash (Summer) Jan 5 Feb 2 Feb 9 Mar 30 – Jun 1 45–65
Squash (Winter) Jan 5 Feb 2 Feb 9 May 4 – Jun 29 80–120
Sunchoke Feb 16 Jun 8 – Aug 3 110–150
Sunflower Dec 22 Feb 2 Feb 9 Apr 20 – Jun 8 70–100
Sweet Corn Feb 9 Apr 13 – May 25 60–90
Sweet Potatoes Dec 22 Feb 2 Feb 9 May 11 – Jun 29 90–120
Tatsoi Jan 5 Jan 12 Feb 2 Mar 9 – Apr 13 35–50
Tomatillo Dec 22 Feb 2 Feb 9 Apr 13 – Jun 22 60–85
Tomatoes Dec 22 Feb 2 Feb 9 Apr 13 – Jun 22 60–85
Turmeric Dec 22 Feb 2 Feb 9 Oct 12 – Dec 7 240–300
Turnip Jan 12 Feb 23 – Mar 30 40–60
Watercress Jan 5 Jan 12 Feb 2 Mar 16 – Apr 20 40–60
Watermelon Jan 5 Feb 2 Feb 9 Apr 20 – Jun 8 70–100
Wax Beans Feb 9 Apr 6 – Jun 1 50–65
Winter Melon Dec 22 Feb 2 Feb 9 May 11 – Jun 29 90–120
Yam Dec 22 Feb 2 Feb 9 Aug 10 – Dec 7 180–330
Yard Long Beans Dec 22 Feb 2 Feb 9 Apr 6 – May 18 55–80
Zucchini Jan 5 Feb 2 Feb 9 Mar 30 – May 25 45–60

🍓 Fruits to Grow in St. Bernard Parish

24 fruits that grow well in Zone 9b with planting dates for St. Bernard Parish.

Show all 24 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Alpine Strawberries Feb 16 May 18 – Aug 31 90–180
Blackberries Feb 16 365–730
Boysenberries Feb 16 365–730
Cantaloupe Feb 16 Apr 27 – Jun 1 70–90
Che Fruit Feb 16 1095–1825
Dragon Fruit Feb 16 365–730
Elderberries Feb 16 730–1095
Figs Feb 16 730–1825
Goji Berries Feb 16 730–1095
Grapes Feb 16 730–1095
Ground Cherry Feb 16 Apr 27 – Jun 22 65–80
Guava Feb 16 365–730
Honeydew Feb 16 May 11 – Jun 22 80–110
Kiwi Feb 16 1095–1825
Loquat Feb 16 730–1825
Mulberries Feb 16 730–1825
Passion Fruit Feb 16 365–545
Pawpaw Feb 16 1095–2555
Persimmon Feb 16 1095–2555
Pomegranate Feb 16 730–1095
Quince Feb 16 1095–1825
Raspberries Feb 16 365–730
Serviceberries Feb 16 730–1095
Strawberries Feb 16 May 18 – Dec 14 90–365

🌿 Herbs to Grow in St. Bernard Parish

40 herbs that grow well in Zone 9b with planting dates for St. Bernard Parish.

Show all 40 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Harvest Days to Maturity
Anise Jan 5 Jan 12 Jan 26 Apr 27 – Jul 13 90–120
Basil Dec 22 Feb 9 Feb 9 Apr 6 – Jun 8 50–75
Bee Balm Feb 9 May 11 – Jul 27 90–120
Borage Jan 5 Jan 12 Jan 26 Mar 23 – May 11 50–60
Caraway Jan 5 Jan 12 Jan 26 365–450
Catnip Feb 9 Apr 13 – Jun 15 60–80
Chamomile Jan 5 Jan 12 Jan 26 Mar 30 – Jun 8 60–90
Chervil Jan 5 Jan 12 Jan 26 Mar 9 – May 11 40–60
Chives Feb 9 Apr 13 – Jun 22 60–90
Cilantro Jan 5 Jan 12 Jan 26 Mar 9 – May 11 40–60
Comfrey Feb 9 Apr 13 – Jun 22 60–90
Cumin Jan 5 Jan 12 Jan 26 May 11 – Jul 13 100–120
Dill Jan 5 Jan 12 Jan 26 Mar 9 – May 11 40–60
Echinacea Feb 9 Jun 15 – Sep 21 120–180
Epazote Dec 22 Feb 9 Feb 9 Mar 30 – May 25 45–60
Fennel (herb) Jan 5 Jan 12 Jan 26 Mar 30 – Jun 8 60–90
Feverfew Feb 9 May 11 – Jul 27 90–120
Garlic Chives Feb 9 Apr 13 – Jun 22 60–90
Horehound Feb 9 Apr 27 – Jun 22 75–90
Hyssop Feb 9 Apr 20 – Jun 22 70–90
Lavender Feb 9 May 11 – Oct 12 90–200
Lemon Balm Feb 9 Apr 13 – Jun 1 60–70
Lemon Thyme Feb 9 Apr 20 – Jun 22 70–90
Lemon Verbena Dec 22 Feb 9 Feb 9 Apr 13 – Jun 22 60–90
Lemongrass Dec 22 Feb 9 Feb 9 Apr 27 – Jul 27 75–120
Marjoram Feb 9 Apr 13 – Jun 22 60–90
Mint Feb 9 Apr 13 – Jun 22 60–90
Oregano Feb 9 Apr 13 – Jun 22 60–90
Parsley Jan 5 Jan 12 Jan 26 Mar 30 – Jun 1 60–80
Rosemary Feb 9 May 4 – Sep 21 80–180
Rue Feb 9 Apr 20 – Jun 22 70–90
Sage Feb 9 Apr 27 – Jun 22 75–90
Savory Feb 9 Apr 6 – Jun 1 50–70
Sorrel Jan 5 Jan 12 Jan 26 Mar 9 – May 11 40–60
Stevia Dec 22 Feb 9 Feb 9 Apr 13 – Jun 22 60–90
Tarragon Feb 9 Apr 13 – Jun 22 60–90
Thai Basil Dec 22 Feb 9 Feb 9 Apr 6 – Jun 8 50–75
Thyme Feb 9 Apr 20 – Jun 22 70–90
Valerian Feb 9 Jun 15 – Sep 21 120–180
Yarrow Feb 9 May 11 – Jul 27 90–120
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Monthly Planting Guide for St. Bernard Parish

Gardening Guides & Resources

Helpful guides from The Ultimate Homestead to improve your garden in St. Bernard Parish.

Frequently Asked Questions

What planting zone is St. Bernard Parish, LA?

St. Bernard Parish 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 St. Bernard Parish, LA?

Based on 24 years of NOAA weather station data, the median last spring frost in St. Bernard Parish falls around February 2. In 8 out of 10 years, last frost lands between January 15 and March 5 — a 49-day window of variability. Use March 5 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in St. Bernard Parish, LA?

The median first fall frost in St. Bernard Parish arrives around December 11. In cold years it can arrive as early as November 20; in mild years as late as December 25. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in St. Bernard Parish?

St. Bernard Parish has a frost-free growing season of approximately 313 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 5.7 days per decade.

What is the soil like in St. Bernard Parish for gardening?

St. Bernard Parish has predominantly Sandy Loam soil with a pH range of 5.2–6.5 and Somewhat Poorly Drained drainage. The native soil conditions make raised beds a particularly good investment here — they let you control drainage and fertility independent of the ground soil.

What is grown commercially in St. Bernard Parish?

St. Bernard Parish has commercial agriculture that includes Soybeans, Cotton, Rice, Sugarcane, Corn. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.

Is St. Bernard Parish a good location for home gardening?

St. Bernard Parish scores 50/100 (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.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near St. Bernard Parish (24 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.