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When to Plant Basil in Volusia County, FL

Volusia County, Florida Zone 9b May

Volusia County, Florida gardeners: here's your May plan

A quick May briefing for Volusia County, Florida gardeners — what's urgent, what's next, and what can wait.

Avg. last frost February 3
Avg. first frost December 21
Soil temp (4") 79°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Basket week: basil

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

To set up a strong June, finish these tasks
  • First harvests: basil

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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.

Volusia County, Florida is in USDA Zone 9b. The average last spring frost is February 3 and the first fall frost is December 21, giving you a growing season of approximately 321 days.

At an elevation of 382 feet, Volusia County receives approximately 54.8 inches of rainfall annually with predominantly sand soil. Summer highs average 95°F, so Basil may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — 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.

Volusia County, FL (Zone 9b) Year-round
321 days
Last Spring Frost February 3
321 growing days
First Fall Frost December 21
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Volusia County Soil Profile

Soil Type

Sand

Soil pH

5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (206 days to spare)
Start indoors: Dec 8 Transplant: Jan 26 🍅 Harvest: Mar 23 – May 25
Recommended (50%) ✓ Fits season (195 days to spare)
Start indoors: Dec 23 Transplant: Feb 10 🍅 Harvest: Apr 7 – Jun 9
Safe Start (90%) ✓ Fits season (172 days to spare)
Start indoors: Jan 20 Transplant: Mar 10 🍅 Harvest: May 5 – Jul 7

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 Volusia County

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

Soil pH

Your soil pH (5.0–6.3) is more acidic than Basil prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.4%). 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

7
successive plantings in your 321-day season

Sow every 5.7 weeks. Last sowing by Oct 07 to harvest before frost.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — 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 2.5" 0" ❄️ Dormant
Feb 2.6" 2.7" 0" ✅ Rainfall sufficient
Mar 2.6" 3" 0" ✅ Rainfall sufficient
Apr 2.6" 2.9" 0" ✅ Rainfall sufficient
May 2.6" 4" 0" ✅ Rainfall sufficient
Jun 2.6" 7.5" 0" ✅ Rainfall sufficient
Jul 2.6" 8.6" 0" ✅ Rainfall sufficient
Aug 2.6" 8.4" 0" ✅ Rainfall sufficient
Sep 2.6" 6.1" 0" ✅ Rainfall sufficient
Oct 2.6" 4.8" 0" ✅ Rainfall sufficient
Nov 2.6" 2" 0.6" 💧 Light watering
Dec 2.6" 2.3" 0.3" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Volusia County). Supplement amounts are based on average rainfall — 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" — every day above 50°F 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 ~1,328 GDD — county provides 6,842 GDD Excellent fit

Basil Planting Timeline — Volusia County, FL

Basil Planting Calendar

Activity When Date Range
Start Indoors December 23 Dec 23 – Jan 6
Transplant Outdoors February 10 Feb 10 – Feb 24
Direct Sow February 10 Feb 10 – Mar 3
Harvest April 7 Apr 7 – Jun 9

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

50–75 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

321 days in Volusia County

Growing Tips for Basil in Volusia County

Direct sow Basil outdoors after February 03 in Volusia County when soil has warmed and frost danger has passed.

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

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 Volusia 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 →

🌾 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 35°F, under 45% humidity.

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

Frequently Asked Questions

When should I plant Basil in Volusia County, FL?

Volusia County is in Zone 9b with an average last frost of February 3. Plan your Basil planting based on this frost date — see the calendar above for exact timing.

What planting zone is Volusia County, FL?

Volusia County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 3 and first fall frost is December 21.

🌱

Your Volusia County Garden Planner — Free

A 24-page printable planner built for Volusia 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.

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