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When to Plant Basil in Brevard County, FL

Basil is a fragrant warm-season herb essential to Italian and Thai cuisines. It comes in many varieties including sweet, Thai, purple, and lemon types.

Brevard County, Florida is in USDA Zone 9b. The average last spring frost is January 19 and the first fall frost is December 20, giving you a growing season of approximately 335 days.

At an elevation of 491 feet, Brevard County receives approximately 52.7 inches of rainfall annually with predominantly sand soil. Summer highs average 104ยฐF, so Basil may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Basil will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Basil root diseases.

Brevard County, FL (Zone 9b) Year-round
335 days
Last Spring Frost January 19
335 growing days
First Fall Frost December 20

Brevard County Soil Profile

Soil Type

Sand

Soil pH

4.8-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (212 days to spare)
Start indoors: Dec 2 Transplant: Jan 20 🍅 Harvest: Mar 17 – May 19
Recommended (50%) ✓ Fits season (209 days to spare)
Start indoors: Dec 8 Transplant: Jan 26 🍅 Harvest: Mar 23 – May 25
Safe Start (90%) ✓ Fits season (184 days to spare)
Start indoors: Jan 6 Transplant: Feb 24 🍅 Harvest: Apr 21 – Jun 23

Percentages indicate frost risk at transplant. The 70% safe window means there is a 30% chance of frost after transplant — suitable for cold-hardy crops or gardeners with frost protection. The 90% safe window is best for tender plants.

Soil Compatibility in Brevard County

How your county's soil matches Basil's growing requirements.

Soil pH

Your soil pH (4.8โ€“5.9) is more acidic than Basil prefers (6.0โ€“7.0). Add garden lime to raise pH.

Soil Texture

Sandy soil in Brevard County warms quickly in spring but drains fast. Basil will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Basil.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Basil.

How to Plant Basil

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Basil

8
successive plantings in your 335-day season

Sow every 5.7 weeks. Last sowing by Oct 06 to harvest before frost.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
0.7″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 435 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Monthly Watering Guide for Basil

Basil needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Basil Needs Rainfall You Supplement Action
Jan 2.6" 2.2" 0.4" ๐Ÿ’ง Light watering
Feb 2.6" 3.1" 0" โœ… Rainfall sufficient
Mar 2.6" 3.5" 0" โœ… Rainfall sufficient
Apr 2.6" 2.5" 0.1" ๐Ÿ’ง Light watering
May 2.6" 3.8" 0" โœ… Rainfall sufficient
Jun 2.6" 7.5" 0" โœ… Rainfall sufficient
Jul 2.6" 6.6" 0" โœ… Rainfall sufficient
Aug 2.6" 6.8" 0" โœ… Rainfall sufficient
Sep 2.6" 7.6" 0" โœ… Rainfall sufficient
Oct 2.6" 5" 0" โœ… Rainfall sufficient
Nov 2.6" 1.9" 0.7" ๐Ÿ’ง Light watering
Dec 2.6" 2.3" 0.3" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Janโ€“Dec in Brevard County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Basil Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" โ€” every day above 50ยฐF deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Basil needs ~1,750 GDD — county provides 9,408 GDD Excellent fit

Basil Planting Timeline โ€” Brevard County, FL

Basil Planting Calendar

Activity When Date Range
Start Indoors December 8 Dec 8 โ€“ Dec 22
Transplant Outdoors January 26 Jan 26 โ€“ Feb 9
Direct Sow January 26 Jan 26 โ€“ Feb 16
Harvest March 23 Mar 23 โ€“ May 25

Plant 0.5" deep ยท 8" apart ยท Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Transplant Outdoors Direct Sow
February Transplant Outdoors Direct Sow
March Harvest
April Harvest
May Harvest
June โ€”
July โ€”
August โ€”
September โ€”
October โ€”
November โ€”
December Start Indoors

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.6"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

50โ€“75 days

๐Ÿงช Soil pH

Needs 6โ€“7 ยท Your soil: too_acidic

๐Ÿ—บ๏ธ USDA Zone

Zone 9b

๐Ÿ“† Growing Season

335 days in Brevard County

Growing Tips for Basil in Brevard County

Direct sow Basil outdoors after January 19 in Brevard County when soil has warmed and frost danger has passed.

Sandy soil in Brevard County dries quickly โ€” mulch Basil with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 104ยฐF in Brevard County, provide afternoon shade for Basil and water deeply in the morning.

General growing tips

Start seeds indoors or direct sow after last frost. Pinch flower buds to extend leaf production. Harvest leaves from the top down, cutting just above a leaf pair.

Recommended Basil Varieties for Brevard County

Downy mildew-resistant basil for your humid climate

Prospera (DM-resistant) Amazel Eleonora

Companion Planting

Good Companions

Avoid Planting Near

  • Rue
  • Sage

Check more plant combinations with our Companion Planting Checker →

๐ŸŒพ Save Your Own Basil Seeds
Life Cycle Annual
Pollination Self-Pollinating
How to Collect Let flower spikes dry brown on the plant.
Storage Store airtight; viable 5 years at 35ยฐF, under 45% humidity.

Isolate 150 ft between varieties. Different basil species can cross.

Frequently Asked Questions

When should I plant Basil in Brevard County, FL?

Brevard County is in Zone 9b with an average last frost of January 19. Plan your Basil planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Brevard County, FL?

Brevard County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 19 and first fall frost is December 20.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Brevard County gardeners in Zone 9b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Brevard County, FL. Local conditions may vary. Last updated: April 2026.