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St. Lucie County, FL — Planting Guide

St. Lucie County, Florida Zone 10a June

St. Lucie County, Florida gardeners: here's your June plan

Here's what deserves your attention in St. Lucie County, Florida this month. Everything below is tailored to Zone 10a and timed around your local frost dates.

Avg. last frost January 29
Avg. first frost December 16
Soil temp (4") 89°F
Watering Low
Pest pressure High
Daylight 13.7 hrs
  1. Start harvesting basil, peppers, and thai basil

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

Looking ahead to July
  • First harvests: ageratum, alpine strawberries, and anise

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St. Lucie County is in USDA Zone 10a. The average last spring frost is January 29 and the first fall frost is December 16, giving you a growing season of approximately 322 days.

At an elevation of 185 ft, St. Lucie County receives approximately 56.2 in of rainfall annually. Summer highs average 89°F with winter lows around 62°F. The predominant soil type is Sand.

Based on 18 years of NOAA climate station data, the last frost date here varies by 43 days year to year — ranging from January 6 in warm years to February 18 in cold years. The growing season is trending shorter by about 1.98 days per decade. St. Lucie County scores 48/100 (Moderate) on the Microclimate Index.

🌡️ Zone

10a (30°F to 35°F min)

❄️ Last Frost

January 29

🍂 First Frost

December 16

📅 Growing Season

322 days

⛰️ Elevation

185 ft

🌧️ Annual Rainfall

56.2 in

St. Lucie County, FL Year-round
321 days
Last Spring Frost January 29
321 growing days
First Fall Frost December 16

Monthly Watering Calendar for St. Lucie County

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

The practical takeaway: In St. Lucie County, the watering question isn't "how often" — it's "is the soil moist 4 inches down?" Stick a finger in. Dry? Water. Damp? Wait. The 56" annual rainfall is just the starting context.

1"/wk 0" 2.3" 4.5" 6.8" 9" +2" Jan 2.3" +1.6" Feb 2.7" +1" Mar 3.3" +2.1" Apr 2.2" +1.2" May 3.1" Jun 8.1" Jul 9" Aug 8.6" Sep 7.5" Oct 5" +2.2" Nov 2.1" +2.1" Dec 2.2"
Rainfall sufficient Supplemental water needed Heavy watering required - - - 1"/week garden need
View detailed monthly data
MonthAvg RainfallRainy DaysExtra Water NeededWatering Effort
Jan 2.3 in 6 days 2 in High
Feb 2.7 in 6 days 1.6 in High
Mar 3.3 in 8 days 1 in Moderate
Apr 2.2 in 6 days 2.1 in High
May 3.1 in 10 days 1.2 in Moderate
Jun 8.1 in 14 days Low
Jul 9 in 17 days Low
Aug 8.6 in 16 days Low
Sep 7.5 in 15 days Low
Oct 5 in 10 days Low
Nov 2.1 in 6 days 2.2 in High
Dec 2.2 in 6 days 2.1 in High

Annual total: 56.1 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.

St. Lucie County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.8

Drainage

Well Drained

Frost Risk Probability

Based on 18 years of NOAA weather station data from 3 stations

Too early frost risk Safe to Plant Jan 29 → Dec 16 322 frost-free days Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Safe: Feb 18 Protect by: Dec 23

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) Feb 18 Dec 23 308 days
Cautious Feb 9 Dec 21 315 days
Average year Jan 29 Dec 16 321 days
Optimistic Jan 19 Dec 9 324 days
Aggressive (risky) Jan 6 Dec 6 334 days
📊
How predictable are frost dates here?

Not very — frost dates can vary by ±43 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 2 days per decade). Use the "Conservative" dates and choose fast-maturing varieties.

Gardening Difficulty Score

48 Moderate
Frost Timing Risk
10.0/10
Drought Risk
5.5/10
Soil Difficulty
3.0/10
Altitude Challenge
0.0/10
Climate Shift
7.9/10
Rainfall Challenge
4.5/10

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

Zone 10a Frost Countdown
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Loading...
Last Frost: Jan 29 First Frost: Dec 16

Local Gardening Help in St. Lucie 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 St. Lucie County's climate and soil.

County Extension Office

St. Lucie County University of Florida IFAS Extension Extension Office

Phone: 352-392-1761

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 FL →

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. Lucie County

Soil testing Tropical gardening Pest management Florida-Friendly landscaping
Finding local nurseries & garden centers in St. Lucie County

Why Buy Local

Local nurseries carry plants that are proven to grow in your area. Staff can give you advice specific to St. Lucie 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 St. Lucie County FL" or "garden center St. Lucie 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 St. Lucie County FL" or check your extension office and local parks department. Facebook groups like "St. Lucie County Gardeners" or "Florida 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 Watermelon (harvest ends Jun 4) 195 days until frost
After Eggplant (harvest ends Jun 18) 181 days until frost
After Snap Peas (harvest ends May 28) 202 days until frost
After Sweet Potatoes (harvest ends Jun 25) 174 days until frost
After Melon (harvest ends Jun 4) 195 days until frost
After Sweet Corn (harvest ends May 14) 216 days until frost

Sunlight & Day Length in St. Lucie County

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

Why it matters: You can't change the sun. Picking the right day-length-matched varieties for St. Lucie County matters more than any other "fix" you make — and the seed packet tells you (look for "long-day," "short-day," "day-neutral").

Longest Day

13.7 hours

Summer solstice daylight

Shortest Day

10.3 hours

Winter solstice daylight

Peak Sun Hours

9.1 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 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 10.4 hr 5.8 hr Short day
February 11.1 hr 6.6 hr Short day
March 11.8 hr 7.5 hr Short day
April 12.7 hr 8.5 hr Neutral
May 13.4 hr 9.1 hr Neutral
June 13.7 hr 7.9 hr Neutral
July 13.6 hr 6.8 hr Neutral
August 13 hr 7.1 hr Neutral
September 12.2 hr 6.1 hr Neutral
October 11.3 hr 7 hr Short day
November 10.6 hr 6.5 hr Short day
December 10.3 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 St. Lucie County

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

Why it matters: Soil temperature predicts plant emergence better than calendar dates. St. Lucie County's spring soil warm-up curve tells you which weeks are safe for direct-sow beans, cucumbers, squash, and corn.

Plant Warm Crops When

Soil reaches 60°F+

Soil warm enough from Mar through Dec.

Best Month to Compost

Mar

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 57°F 63°F ♻️ Active ~14 weeks
Feb 59°F 63°F ♻️ Active ~14 weeks
Mar 65°F 69°F 🔥 Peak ~8 weeks
Apr 71°F 74°F 🔥 Peak ~8 weeks
May 78°F 80°F 🔥 Peak ~8 weeks
Jun 89°F 84°F 🔥 Peak ~8 weeks
Jul 95°F 90°F 🔥 Peak ~8 weeks
Aug 97°F 92°F 🔥 Peak ~8 weeks
Sep 93°F 91°F 🔥 Peak ~8 weeks
Oct 85°F 86°F 🔥 Peak ~8 weeks
Nov 71°F 78°F 🔥 Peak ~8 weeks
Dec 62°F 69°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. Lucie County

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

For new gardeners: High pest pressure means weekly inspection. Low pest pressure means monthly. The score tells you which routine to set up before you have a problem.

Insect Pest Pressure

8 / 10

High — expect multiple pest generations. Preventative measures essential.

Disease Risk

8.1 / 10

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

Seasonal Risk

Spring High
Summer High
Fall High
Winter Moderate
View 6 common pests in your area
PestRisk LevelPeak Months
Aphids High Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Whiteflies High Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, Dec
Spider mites High Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov
Thrips High Mar, Apr, May, Jun, Jul, Aug, Sep
Scale insects Moderate Apr, May, Jun, Jul, Aug, Sep, Oct
Nematodes Moderate May, Jun, Jul, Aug, Sep
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. Lucie County

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

Why this matters: Bare soil is wasted soil — it loses nutrients to rain, dries out, compacts, and gets taken over by weeds. Cover crops (clovers, ryegrass, vetch, peas) are the "between seasons" trick that makes soil better every year. In St. Lucie County, you can fit a cover crop into the gaps.

Spring Cover Crops (4 options) — Build soil before the main growing season
Crop Plant By Terminate N-Fixing Soil Benefit
Buckwheat Feb 8 Oct 21 Rapid growth, attracts pollinators, suppresses weeds
Cowpeas (southern peas) Feb 5 Oct 7 ✓ Yes Excellent nitrogen fixer for warm climates, edible
Sorghum-sudan grass Jan 31 Oct 21 Massive biomass, breaks compaction, suppresses nematodes
White clover Dec 29 Oct 21 ✓ 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 Feb 27 Dec 2 Deep roots break compaction, attract pollinators and beneficial insects
Fall Cover Crops (1 options) — Plant after harvest to protect soil over winter
Crop Plant By Terminate N-Fixing Soil Benefit
Crimson clover Oct 4 Jan 15 ✓ Yes Fixes nitrogen, attracts pollinators in spring

Wind & Microclimate in St. Lucie County

For new gardeners: Wind shapes the garden you don't think about: bee paths, evaporation, structural stress on tomato cages. St. Lucie County's 8.2 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: 11 mph   Summer: 8 mph

Fall: 9 mph   Winter: 11 mph

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

Windbreak Benefit

5/10

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

Frost Pocket Risk

Low

Relatively flat terrain (59 ft range). Frost pocket risk is minimal — garden placement is flexible.

Rainwater Harvesting in St. Lucie County

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

For new gardeners: A 1,000 sq ft roof captures about 600 gallons from a single 1" rainfall. St. Lucie County gets 56" of rain a year — a couple of well-placed rain barrels can cover most summer watering. In dry climates the math's even better: every captured gallon is one you don't buy.

Annual Collection

27,960 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 1,250 gal tank.

Legal Status

Unrestricted

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

Best Collection Months

Jun, Jul, Aug, Sep

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

Months to Draw From Storage

Apr, Nov, 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 56.1 inches of rain per year
  • A 1,000 sq ft roof can collect roughly 27,960 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. Lucie County

Soil Type

Sand

Soil pH 4.8–5.8 · Excessively Drained drainage

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

Watering Needs

Drought stress: 5.5/10

Moderate drought pressure. Drip irrigation and mulching are highly recommended to maintain soil moisture through summer.

Season Tips

322-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 22-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. Lucie County

105 vegetables that grow well in Zone 10a with planting dates for St. Lucie County.

Show all 105 vegetables with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Acorn Squash Jan 1 Jan 29 Feb 5 Apr 30 – Jun 4 80–100
Amaranth Dec 18 Jan 29 Feb 5 May 7 – Jun 25 90–120
Artichoke Feb 12 Jun 18 – Aug 27 120–180
Arugula Jan 1 Jan 8 Jan 29 Oct 21 Mar 5 – May 7 30–50
Asparagus Feb 12 730–1095
Beets Jan 8 Oct 21 Mar 5 – Apr 2 50–70
Belgian Endive Jan 1 Jan 8 Jan 29 Oct 21 May 21 – Jul 16 110–150
Bitter Melon Dec 18 Jan 29 Feb 5 Apr 9 – May 21 60–90
Black Beans Feb 5 May 7 – Jun 25 90–120
Bok Choy Jan 1 Jan 8 Jan 29 Oct 21 Mar 12 – Apr 16 40–60
Broccoli Jan 1 Jan 8 Jan 29 Oct 21 Apr 2 – May 14 60–90
Broccoli Rabe Jan 1 Jan 8 Jan 29 Oct 21 Mar 12 – Apr 16 40–60
Brussels Sprouts Jan 1 Jan 8 Jan 29 Oct 21 Apr 30 – Jun 25 90–130
Butternut Squash Jan 1 Jan 29 Feb 5 May 7 – Jun 11 85–110
Cabbage Jan 1 Jan 8 Jan 29 Oct 21 Apr 2 – May 28 60–100
Calabash Dec 18 Jan 29 Feb 5 Apr 30 – Jun 25 80–120
Cardoon Feb 12 Jun 18 – Jul 30 120–150
Carrots Jan 8 Oct 21 Mar 12 – Apr 16 60–80
Cauliflower Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – May 28 55–100
Celery Jan 1 Jan 8 Jan 29 Oct 21 Apr 23 – Jun 18 80–120
Celtuce Jan 1 Jan 8 Jan 29 Oct 21 Apr 2 – May 14 60–90
Chard Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – May 14 50–60
Chayote Dec 18 Jan 29 Feb 5 Jun 11 – Aug 20 120–180
Chickpeas Jan 1 Jan 8 Jan 29 Oct 21 Apr 23 – Jun 4 80–110
Chicory Jan 1 Jan 8 Jan 29 Oct 21 Apr 2 – May 14 60–85
Chinese Cabbage Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – Apr 23 50–70
Christmas Lima Beans Dec 18 Jan 29 Feb 5 Apr 30 – Jun 4 80–100
Collard Greens Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – May 28 55–75
Corn Feb 5 Apr 9 – Jun 4 60–100
Cowpeas Feb 5 Apr 9 – May 21 60–90
Cress Jan 1 Jan 8 Jan 29 Oct 21 Feb 12 – Mar 5 14–21
Crookneck Squash Jan 1 Jan 29 Feb 5 Mar 26 – Apr 23 45–60
Cucumber Jan 1 Jan 29 Feb 5 Apr 2 – May 28 50–70
Daikon Jan 8 Oct 21 Mar 5 – Apr 2 50–70
Delicata Squash Jan 1 Jan 29 Feb 5 Apr 30 – Jun 4 80–100
Edamame Feb 5 Apr 23 – Jun 4 75–100
Eggplant Dec 18 Jan 29 Feb 5 Apr 16 – Jun 18 65–85
Endive Jan 1 Jan 8 Jan 29 Oct 21 Mar 19 – Apr 23 45–65
Escarole Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – Apr 23 50–70
Fava Beans Jan 1 Jan 8 Jan 29 Oct 21 Apr 16 – May 28 75–100
Fennel Dec 18 Jan 29 Feb 5 Apr 9 – May 21 60–90
Ginger Dec 18 Jan 29 Feb 5 Oct 8 – Dec 17 240–300
Green Beans Feb 5 Apr 2 – May 28 50–65
Hot Peppers Dec 18 Jan 29 Feb 5 Apr 16 – Jul 23 70–120
Hubbard Squash Jan 1 Jan 29 Feb 5 May 21 – Jun 25 100–120
Jicama Dec 18 Jan 29 Feb 5 Jun 11 – Aug 20 120–180
Kabocha Jan 1 Jan 29 Feb 5 May 7 – Jun 4 85–100
Kai Lan Jan 1 Jan 8 Jan 29 Oct 21 Mar 19 – Apr 16 45–60
Kale Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – May 21 50–70
Kidney Beans Feb 5 May 7 – Jun 11 85–110
Kohlrabi Jan 1 Jan 8 Jan 29 Oct 21 Mar 19 – Apr 23 45–65
Komatsuna Jan 1 Jan 8 Jan 29 Oct 21 Mar 5 – Apr 9 35–50
Leeks Jan 1 Jan 8 Jan 29 Oct 21 Apr 30 – Jul 16 90–150
Lentils Jan 1 Jan 8 Jan 29 Oct 21 Apr 23 – Jun 4 80–110
Lettuce Jan 1 Jan 8 Jan 29 Oct 21 Mar 5 – May 14 30–60
Lima Beans Feb 5 Apr 9 – May 21 60–90
Loofah Dec 18 Jan 29 Feb 5 May 21 – Jul 23 100–150
Luffa Dec 18 Jan 29 Feb 5 May 7 – Jul 23 90–150
Mache Jan 1 Jan 8 Jan 29 Oct 21 Mar 12 – Apr 16 40–60
Malabar Spinach Dec 18 Jan 29 Feb 5 Apr 2 – Apr 30 55–70
Melon Jan 1 Jan 29 Feb 5 Apr 16 – Jun 4 70–100
Microgreens Jan 1 Jan 8 Jan 29 Oct 21 Feb 5 – Mar 5 7–21
Mizuna Jan 1 Jan 8 Jan 29 Oct 21 Mar 5 – Apr 2 30–45
Mustard Greens Jan 1 Jan 8 Jan 29 Oct 21 Mar 5 – May 7 30–50
Napa Cabbage Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – Apr 30 55–75
New Zealand Spinach Dec 18 Jan 29 Feb 5 Apr 2 – Apr 30 55–70
Okra Dec 18 Jan 29 Feb 5 Apr 2 – May 28 50–65
Onion Jan 1 Jan 8 Jan 29 Oct 21 Apr 30 – Jun 18 90–120
Pac Choi Jan 1 Jan 8 Jan 29 Oct 21 Mar 12 – Apr 9 40–55
Patty Pan Squash Jan 1 Jan 29 Feb 5 Mar 26 – Apr 23 45–60
Peas Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – May 21 55–70
Peppers Dec 18 Jan 29 Feb 5 Apr 9 – Jun 18 60–90
Pole Beans Dec 18 Jan 29 Feb 5 Apr 2 – May 28 55–70
Potatoes Dec 18 Jan 29 Feb 5 Apr 16 – Jun 25 70–120
Pumpkin Jan 1 Jan 29 Feb 5 May 7 – Jun 25 85–120
Purslane Jan 1 Jan 8 Jan 29 Oct 21 Mar 12 – Apr 16 40–60
Radicchio Jan 1 Jan 8 Jan 29 Oct 21 Apr 2 – May 7 60–80
Radish Jan 8 Oct 21 Feb 5 – Feb 26 22–35
Romanesco Jan 1 Jan 8 Jan 29 Oct 21 Apr 16 – May 28 75–100
Savoy Cabbage Jan 1 Jan 8 Jan 29 Oct 21 Apr 9 – Jun 4 70–110
Scallions Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – Apr 23 50–70
Scarlet Runner Beans Dec 18 Jan 29 Feb 5 Apr 9 – May 14 60–80
Shallot Jan 1 Jan 8 Jan 29 Oct 21 Apr 30 – Jun 18 90–120
Shiso Dec 18 Feb 5 Feb 5 Apr 2 – May 28 50–70
Snap Peas Dec 18 Jan 29 Feb 5 Apr 2 – May 28 55–70
Snow Peas Jan 1 Jan 8 Jan 29 Oct 21 Mar 26 – May 21 50–65
Soybeans Feb 5 Apr 30 – Jun 25 80–120
Spaghetti Squash Jan 1 Jan 29 Feb 5 May 7 – Jun 4 85–100
Spinach Jan 1 Jan 8 Jan 29 Oct 21 Mar 5 – May 7 35–50
Squash (Summer) Jan 1 Jan 29 Feb 5 Mar 26 – May 28 45–65
Squash (Winter) Jan 1 Jan 29 Feb 5 Apr 30 – Jun 25 80–120
Sweet Corn Feb 5 Apr 9 – May 21 60–90
Sweet Potatoes Dec 18 Jan 29 Feb 5 May 7 – Jun 25 90–120
Tatsoi Jan 1 Jan 8 Jan 29 Oct 21 Mar 5 – Apr 9 35–50
Tomatillo Dec 18 Jan 29 Feb 5 Apr 9 – Jun 18 60–85
Tomatoes Dec 18 Jan 29 Feb 5 Apr 9 – Jun 18 60–85
Turmeric Dec 18 Jan 29 Feb 5 Oct 8 – Dec 17 240–300
Turnip Jan 8 Oct 21 Feb 19 – Mar 26 40–60
Watercress Jan 1 Jan 8 Jan 29 Oct 21 Mar 12 – Apr 16 40–60
Watermelon Jan 1 Jan 29 Feb 5 Apr 16 – Jun 4 70–100
Wax Beans Feb 5 Apr 2 – May 28 50–65
Winter Melon Dec 18 Jan 29 Feb 5 May 7 – Jun 25 90–120
Yam Dec 18 Jan 29 Feb 5 Aug 6 – Jan 21 180–330
Yard Long Beans Dec 18 Jan 29 Feb 5 Apr 2 – May 14 55–80
Zucchini Jan 1 Jan 29 Feb 5 Mar 26 – May 21 45–60

🍓 Fruits to Grow in St. Lucie County

16 fruits that grow well in Zone 10a with planting dates for St. Lucie County.

Show all 16 fruits with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Alpine Strawberries Feb 12 May 14 – Aug 27 90–180
Blackberries Feb 12 365–730
Boysenberries Feb 12 365–730
Cantaloupe Feb 12 Apr 23 – May 28 70–90
Che Fruit Feb 12 1095–1825
Dragon Fruit Feb 12 365–730
Figs Feb 12 730–1825
Goji Berries Feb 12 730–1095
Grapes Feb 12 730–1095
Ground Cherry Feb 12 Apr 23 – Jun 18 65–80
Guava Feb 12 365–730
Honeydew Feb 12 May 7 – Jun 18 80–110
Loquat Feb 12 730–1825
Passion Fruit Feb 12 365–545
Pomegranate Feb 12 730–1095
Strawberries Feb 12 May 14 – Feb 11 90–365

🌿 Herbs to Grow in St. Lucie County

23 herbs that grow well in Zone 10a with planting dates for St. Lucie County.

Show all 23 herbs with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Harvest Days to Maturity
Anise Jan 1 Jan 8 Jan 22 Oct 21 Apr 23 – Jul 9 90–120
Basil Dec 18 Feb 5 Feb 5 Apr 2 – Jun 4 50–75
Borage Jan 1 Jan 8 Jan 22 Oct 21 Mar 19 – May 7 50–60
Chervil Jan 1 Jan 8 Jan 22 Oct 21 Mar 5 – May 7 40–60
Chives Feb 5 Apr 9 – Jun 18 60–90
Cilantro Jan 1 Jan 8 Jan 22 Oct 21 Mar 5 – May 7 40–60
Cumin Jan 1 Jan 8 Jan 22 Oct 21 May 7 – Jul 9 100–120
Dill Jan 1 Jan 8 Jan 22 Oct 21 Mar 5 – May 7 40–60
Epazote Dec 18 Feb 5 Feb 5 Mar 26 – May 21 45–60
Fennel (herb) Jan 1 Jan 8 Jan 22 Oct 21 Mar 26 – Jun 4 60–90
Garlic Chives Feb 5 Apr 9 – Jun 18 60–90
Horehound Feb 5 Apr 23 – Jun 18 75–90
Lemon Verbena Dec 18 Feb 5 Feb 5 Apr 9 – Jun 18 60–90
Lemongrass Dec 18 Feb 5 Feb 5 Apr 23 – Jul 23 75–120
Marjoram Feb 5 Apr 9 – Jun 18 60–90
Mint Feb 5 Apr 9 – Jun 18 60–90
Oregano Feb 5 Apr 9 – Jun 18 60–90
Parsley Jan 1 Jan 8 Jan 22 Oct 21 Mar 26 – May 28 60–80
Rosemary Feb 5 Apr 30 – Sep 17 80–180
Sage Feb 5 Apr 23 – Jun 18 75–90
Savory Feb 5 Apr 2 – May 28 50–70
Stevia Dec 18 Feb 5 Feb 5 Apr 9 – Jun 18 60–90
Thai Basil Dec 18 Feb 5 Feb 5 Apr 2 – Jun 4 50–75

🌸 Flowers to Grow in St. Lucie County

31 flowers that grow well in Zone 10a with planting dates for St. Lucie County.

Show all 31 flowers with planting dates
Plant Start Indoors Direct Sow Transplant Fall Plant Bloom Days to Maturity
Ageratum Dec 18 Dec 25 Dec 25 Feb 19 – Sep 3 60–75
Anemones Nov 4 Nov 4 – Dec 2 90–120
Bachelor's Button Nov 20 Dec 18 Sep 23 Feb 12 – May 21 60–90
Begonias Nov 20 Dec 18 Feb 26 – Sep 24 70–90
Calendula Nov 20 Dec 18 Sep 9 Jan 29 – May 7 50–70
California Poppy Sep 9 Nov 18 – Mar 10 60–90
Celosia Jan 1 Dec 25 Dec 25 Feb 26 – Oct 1 60–90
Cosmos Jan 1 Dec 18 Dec 18 Feb 26 – Sep 10 60–90
Dahlias Jan 29 Jan 29 Apr 9 – Nov 5 70–120
Daylily Dec 18 Jan 1 Mar 12 – Sep 24 60–90
Dianthus Dec 4 Nov 20 Nov 20 Jan 8 – Feb 26 60–80
Freesia Nov 4 Nov 4 – Dec 9 84–112
Gaillardia (Blanket Flower) Dec 25 Jan 1 Jan 1 Mar 12 – Sep 10 70–100
Geraniums Nov 20 Dec 18 Feb 26 – Sep 24 70–100
Gladiolus Jan 29 Jan 29 Apr 9 – Nov 5 70–100
Impatiens Dec 4 Dec 25 Mar 5 – Sep 17 60–75
Larkspur Oct 21 Dec 30 – Mar 10 60–90
Marigolds Dec 25 Dec 25 Dec 25 Feb 19 – Aug 27 50–70
Nasturtium Jan 1 Dec 18 Dec 18 Feb 12 – Sep 10 55–65
Pansy Division Dec 18 Sep 9 Jan 29 – Apr 9 70–90
Petunia Dec 4 Jan 1 Mar 12 – Sep 10 70–90
Portulaca Jan 1 Dec 25 Dec 25 Feb 12 – Sep 17 50–70
Ranunculus Nov 4 Nov 4 – Dec 2 90–120
Roses Dec 4 Jan 1 Mar 12 – Sep 24 90–180
Salvia Dec 4 Dec 18 Feb 26 – Sep 10 70–90
Sedum (Stonecrop) Dec 18 Jan 1 Apr 23 – Jun 18 60–90
Snapdragon Nov 20 Dec 18 Sep 9 Feb 19 – Jul 16 70–100
Sunflower Jan 8 Dec 18 Dec 18 Mar 12 – Sep 10 70–100
Sweet Alyssum Nov 20 Dec 18 Sep 23 Jan 15 – Apr 9 45–60
Vinca (Annual) Nov 20 Dec 18 Feb 26 – Oct 8 70–90
Zinnia Jan 1 Dec 18 Dec 18 Feb 26 – Sep 10 60–70
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Monthly Planting Guide for St. Lucie County

Gardening Guides & Resources

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

Frequently Asked Questions

What planting zone is St. Lucie County, FL?

St. Lucie County is in USDA Hardiness Zone 10a. 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. Lucie County, FL?

Based on 18 years of NOAA weather station data, the median last spring frost in St. Lucie County falls around January 29. In 8 out of 10 years, last frost lands between January 6 and February 18 — a 43-day window of variability. Use February 18 as your conservative safe-to-plant date for frost-sensitive crops.

When is the first fall frost in St. Lucie County, FL?

The median first fall frost in St. Lucie County arrives around December 16. In cold years it can arrive as early as December 6; in mild years as late as December 23. Harvest or protect frost-sensitive crops — tomatoes, peppers, basil, squash — before this date.

How long is the growing season in St. Lucie County?

St. Lucie County has a frost-free growing season of approximately 322 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 shorter by about 1.98 days per decade.

What is the soil like in St. Lucie County for gardening?

St. Lucie County has predominantly Sand soil with a pH range of 4.8–5.8 and Excessively 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. Lucie County?

St. Lucie County has commercial agriculture that includes Citrus, Sugarcane, Tomatoes. These crops reflect the local climate and soil conditions — what succeeds commercially often translates well to home gardens in the same area.

Is St. Lucie County a good location for home gardening?

St. Lucie County scores 48/100 (Moderate) on our Microclimate Index, which combines frost reliability, drought pressure, soil challenge, elevation risk, and long-term climate trend. Gardening here benefits from close attention to frost timing and season extension due to the challenging microclimate factors.

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A 22-page printable planner built for St. Lucie County (Zone 10a). 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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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA GHCN-D daily station data (1994–2024) from 3 weather stations in or near St. Lucie County (18 years of records). Frost dates represent 50% probability averages; local conditions vary by elevation and microclimate. Last updated: June 2026.

Sources & credits

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