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When to Plant Dill in Palm Beach 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.

Palm Beach County, Florida is in USDA Zone 10a. The average last spring frost is February 17 and the first fall frost is April 15, giving you a growing season of approximately 57 days.

At an elevation of 355 feet, Palm Beach County receives approximately 50 inches of rainfall annually with predominantly sand soil. Summer highs average 93ยฐF, 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.

Palm Beach County, FL (Zone 10a) Very short season
57 days
Last Spring Frost February 17
57 growing days
First Fall Frost April 15

Palm Beach County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.9

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (149 days to spare)
Start indoors: Jan 13 Transplant: Feb 3 🍅 Harvest: Mar 17 – May 19
Recommended (50%) ✓ Fits season (142 days to spare)
Start indoors: Jan 20 Transplant: Feb 10 🍅 Harvest: Mar 24 – May 26
Safe Start (90%) ✓ Fits season (135 days to spare)
Start indoors: Jan 27 Transplant: Feb 17 🍅 Harvest: Mar 31 – Jun 2

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 Palm Beach County

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

Soil pH

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

Soil Texture

Sandy soil in Palm Beach 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
0.6″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 243 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 โ€” 2.4" 0" โ„๏ธ Dormant
Feb 2.2" 2.3" 0" โœ… Rainfall sufficient
Mar 2.2" 3.2" 0" โœ… Rainfall sufficient
Apr 2.2" 2.4" 0" โœ… Rainfall sufficient
May 2.2" 3.3" 0" โœ… Rainfall sufficient
Jun 2.2" 6.2" 0" โœ… Rainfall sufficient
Jul 2.2" 7.3" 0" โœ… Rainfall sufficient
Aug 2.2" 7.4" 0" โœ… Rainfall sufficient
Sep 2.2" 7" 0" โœ… Rainfall sufficient
Oct 2.2" 4.2" 0" โœ… Rainfall sufficient
Nov โ€” 2" 0" โ„๏ธ Dormant
Dec โ€” 2.2" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Febโ€“Oct in Palm Beach 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 ~988 GDD — county provides 7,208 GDD Excellent fit

Dill Planting Timeline โ€” Palm Beach County, FL

Dill Planting Calendar

Activity When Date Range
Start Indoors January 20 Jan 20 โ€“ Feb 3
Transplant Outdoors February 10 Feb 10 โ€“ Feb 24
Direct Sow January 27 Jan 27 โ€“ Feb 17
Harvest March 24 Mar 24 โ€“ May 26
Fall Sowing February 18 Feb 18 โ€“ Mar 4

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

0.5"/week ยท Only during dry spells

๐Ÿ“… Days to Maturity

40โ€“60 days

๐Ÿงช Soil pH

Needs 5.5โ€“7 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 10a

๐Ÿ“† Growing Season

57 days in Palm Beach County

Growing Tips for Dill in Palm Beach County

Direct sow Dill outdoors after February 17 in Palm Beach County when soil has warmed and frost danger has passed.

Sandy soil in Palm Beach 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 Palm Beach 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.

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 Palm Beach County, FL?

Palm Beach County is in Zone 10a with an average last frost of February 17. Plan your Dill planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Palm Beach County, FL?

Palm Beach County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is February 17 and first fall frost is .

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Palm Beach County gardeners in Zone 10a 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 Palm Beach County, FL. Local conditions may vary. Last updated: April 2026.