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When to plant Dill in Captiva, FL

Dill planted in Captiva between January 7 and January 28 matures in 40–60 days — well before the December 19 first frost. A second sowing from October 24 to November 7 extends the harvest into fall.

When to Plant Dill in Captiva, FL

Dill
Lee County, Florida Zone 10b July

Lee County, Florida gardeners: here's your July plan

Each item below is timed to Lee County, Florida's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost January 28
Avg. first frost December 19
Soil temp (4") 95°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Plan the fall garden

    Make a planting map for August. Tomatoes, peppers, brassicas, lettuce, root crops all go in over the next 8 weeks. Soil amendments and irrigation prep happen now.

  2. Keep heat-survivor crops productive

    Daily harvest of okra and southern peas keeps plants producing. Let pods over-mature and the plant stops setting new fruit.

  3. Watch for hurricane prep season

    August-October is hurricane season. Stake young trees, secure rain barrels, and plan how to protect tender transplants from high winds.

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Dill is a feathery annual herb with aromatic leaves and seeds. Its fine foliage and umbrella-shaped flower heads attract beneficial insects to the garden.

Captiva, Florida is in USDA Zone 10b. The average last spring frost is January 28 and the first fall frost is December 19, giving you a growing season of approximately 325 days.

At an elevation of 408 feet, Lee County receives approximately 61.6 inches of rainfall annually with predominantly sand soil. Summer highs average 86°F, providing good warmth for Dill during the growing season. Sandy soil warms quickly in spring — great for early planting — but Dill will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Dill root diseases.

Captiva, FL (Zone 10b) Year-round
325 days
Last Spring Frost January 28
325 growing days
First Fall Frost December 19

Captiva Soil Profile

Soil Type

Sand

Soil pH

5.1-5.9

Drainage

Well Drained

Dill Planting Risk Windows

Early Start (70% safe) ✓ Fits season (225 days to spare)
Start indoors: Dec 22 Transplant: Jan 12 🍅 Harvest: Feb 23 – Apr 27
Recommended (50%) ✓ Fits season (227 days to spare)
Start indoors: Dec 31 Transplant: Jan 21 🍅 Harvest: Mar 4 – May 6
Safe Start (90%) ✓ Fits season (199 days to spare)
Start indoors: Feb 1 Transplant: Feb 22 🍅 Harvest: Apr 5 – Jun 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 Captiva

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

Soil pH

Your soil pH (5.1–5.9) overlaps with Dill's range (5.5–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Dill.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Dill.

How to Plant Dill

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

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Dill

9
successive plantings in your 325-day season

Sow every 4.6 weeks. Last sowing by Oct 20 to harvest before frost.

For a dedicated fall crop, sow by Oct 24.

Dill Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Dill

Dill needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Dill Needs Rainfall You Supplement Action
Jan 2.2" 3" 0" ✅ Rainfall sufficient
Feb 2.2" 3.3" 0" ✅ Rainfall sufficient
Mar 2.2" 3.6" 0" ✅ Rainfall sufficient
Apr 2.2" 2.8" 0" ✅ Rainfall sufficient
May 2.2" 4" 0" ✅ Rainfall sufficient
Jun 2.2" 7.6" 0" ✅ Rainfall sufficient
Jul 2.2" 10" 0" ✅ Rainfall sufficient
Aug 2.2" 7.7" 0" ✅ Rainfall sufficient
Sep 2.2" 9.3" 0" ✅ Rainfall sufficient
Oct 2.2" 5.1" 0" ✅ Rainfall sufficient
Nov 2.2" 2.7" 0" ✅ Rainfall sufficient
Dec 2.2" 2.5" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Jan–Dec in Lee County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Dill 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.

Dill needs ~725 GDD — county provides 4,727 GDD Excellent fit

Dill Planting Timeline — Captiva, FL

Dill Planting Calendar

Activity When Date Range
Start Indoors December 31 Dec 31 – Jan 14
Transplant Outdoors January 21 Jan 21 – Feb 4
Direct Sow January 7 Jan 7 – Jan 28
Harvest March 4 Mar 4 – May 6
Fall Sowing October 24 Oct 24 – Nov 7

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 10b

📆 Growing Season

325 days in Lee County

Growing Tips for Dill in Captiva

Direct sow Dill outdoors after January 28 in Lee County when soil has warmed and frost danger has passed.

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

Your generous 326.0-day season in Lee County allows multiple plantings of Dill. Sow every 20.0 days for continuous harvest.

Common pests for Dill in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

With 62" of annual rainfall in Lee County, ensure good drainage for Dill — excess moisture can promote root rot and fungal diseases.

General growing tips

Direct sow in spring as dill has a taproot and dislikes transplanting. Succession sow for continuous leaf harvest. Allow some plants to flower for seeds and to attract beneficial insects.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Tomatoes

Check more plant combinations with our Companion Planting Checker →

When should I plant Dill in Captiva, FL?

In Captiva, FL, plant Dill after the last frost (around January 28) and before the first frost (around December 19). Best results when soil holds above 50°F.

What growing zone is Captiva, FL for Dill?

Captiva sits in USDA Zone 10b. Dill grows reliably in zones 2a through 11b, so it's a good fit here.

Can Dill grow in Captiva's climate?

Yes — Dill grows well in Captiva's temperate climate. Captiva averages a 326-day frost-free season, with last frost around January 28 and first frost around December 19.

🌱

Your Lee County Garden Planner — Free

A 22-page printable planner built for Lee County (Zone 10b). 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 Lee County, FL. Local conditions may vary. Last updated: July 2026.