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When to Plant Dill in Miami-Dade County, FL

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.

Miami-Dade County, Florida is in USDA Zone 10b. The average last spring frost is January 1 and the first fall frost is December 31, giving you a growing season of approximately 364 days.

At an elevation of 123 feet, Miami-Dade County receives approximately 58.7 inches of rainfall annually with predominantly sand soil. Summer highs average 90ยฐF, providing good warmth for Dill during the growing season. Sandy soil warms quickly in spring โ€” great for early planting โ€” 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.

Miami-Dade County, FL (Zone 10b) Year-round
364 days
Last Spring Frost January 1
364 growing days
First Fall Frost December 31

Miami-Dade County Soil Profile

Soil Type

Sand

Soil pH

5.1-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (85 days to spare)
Start indoors: Mar 18 Transplant: Apr 8 🍅 Harvest: May 20 – Jul 22
Recommended (50%) ✓ Fits season (85 days to spare)
Start indoors: Mar 18 Transplant: Apr 8 🍅 Harvest: May 20 – Jul 22
Safe Start (90%) ✓ Fits season (85 days to spare)
Start indoors: Mar 18 Transplant: Apr 8 🍅 Harvest: May 20 – Jul 22

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 Miami-Dade County

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

Soil pH

Your soil pH (5.1โ€“6.3) overlaps with Dill's range (5.5โ€“7.0), though not a perfect match.

Soil Texture

Sandy soil in Miami-Dade 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 (1.3%). 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.

Plant Water Budget

Plant needs
0.5″/week
Rainfall provides
0.7″/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" 2.9" 0" โœ… Rainfall sufficient
Feb 2.2" 2.9" 0" โœ… Rainfall sufficient
Mar 2.2" 3.4" 0" โœ… Rainfall sufficient
Apr 2.2" 2.5" 0" โœ… Rainfall sufficient
May 2.2" 3.8" 0" โœ… Rainfall sufficient
Jun 2.2" 8.1" 0" โœ… Rainfall sufficient
Jul 2.2" 9.5" 0" โœ… Rainfall sufficient
Aug 2.2" 8.6" 0" โœ… Rainfall sufficient
Sep 2.2" 7.1" 0" โœ… Rainfall sufficient
Oct 2.2" 5" 0" โœ… Rainfall sufficient
Nov 2.2" 2.3" 0" โœ… Rainfall sufficient
Dec 2.2" 2.7" 0" โœ… Rainfall sufficient

Water needs are for active growing months only (Janโ€“Dec in Miami-Dade County). Supplement amounts are based on average rainfall โ€” 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" 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.

Dill needs ~875 GDD — county provides 6,387 GDD Excellent fit

Dill Planting Timeline โ€” Miami-Dade County, FL

Dill Planting Calendar

Activity When Date Range
Start Indoors December 4 Dec 4 โ€“ Dec 18
Transplant Outdoors December 25 Dec 25 โ€“ Jan 8
Direct Sow December 11 Dec 11 โ€“ Jan 1
Harvest February 5 Feb 5 โ€“ Apr 9
Fall Sowing November 5 Nov 5 โ€“ Nov 19

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Natural rainfall sufficient

๐Ÿ“… Days to Maturity

40โ€“60 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 10b

๐Ÿ“† Growing Season

364 days in Miami-Dade County

Growing Tips for Dill in Miami-Dade County

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

Your generous 365.0-day season in Miami-Dade 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 59" of annual rainfall in Miami-Dade County, ensure good drainage for Dill โ€” 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 →

Frequently Asked Questions

When should I plant Dill in Miami-Dade County, FL?

Miami-Dade County is in Zone 10b with an average last frost of January 1. Plan your Dill planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Miami-Dade County, FL?

Miami-Dade County, Florida is in USDA Hardiness Zone 10b. The average last spring frost is January 1 and first fall frost is December 31.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Miami-Dade County gardeners in Zone 10b organize planting dates, track what's growing, and never miss a planting window.

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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 Miami-Dade County, FL. Local conditions may vary. Last updated: April 2026.