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When to Plant Dill in Orange County, TX

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.

Orange County, Texas is in USDA Zone 9a. The average last spring frost is February 12 and the first fall frost is December 11, giving you a growing season of approximately 302 days.

At an elevation of 231 feet, Orange County receives approximately 63.4 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98ยฐF, so Dill may need afternoon shade and extra watering during peak heat. 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.

Orange County, TX (Zone 9a) Year-round
302 days
Last Spring Frost February 12
302 growing days
First Fall Frost December 11

Orange County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.8-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (217 days to spare)
Start indoors: Dec 24 Transplant: Jan 14 🍅 Harvest: Feb 25 – Apr 29
Recommended (50%) ✓ Fits season (204 days to spare)
Start indoors: Jan 15 Transplant: Feb 5 🍅 Harvest: Mar 19 – May 21
Safe Start (90%) ✓ Fits season (197 days to spare)
Start indoors: Feb 5 Transplant: Feb 26 🍅 Harvest: Apr 9 – Jun 11

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 Orange County

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

Soil pH

Your soil pH (5.8โ€“6.5) is within Dill's preferred range (5.5โ€“7.0).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.2%). Annual compost additions will help 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 302-day season

Sow every 4.6 weeks. Last sowing by Oct 12 to harvest before frost.

For a dedicated fall crop, sow by Oct 16.

Plant Water Budget

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

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

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€” 1.8" 0" โ„๏ธ Dormant
Feb 2.2" 2.1" 0.1" ๐Ÿ’ง Light watering
Mar 2.2" 4.2" 0" โœ… Rainfall sufficient
Apr 2.2" 6.3" 0" โœ… Rainfall sufficient
May 2.2" 8.3" 0" โœ… Rainfall sufficient
Jun 2.2" 11.1" 0" โœ… Rainfall sufficient
Jul 2.2" 7.6" 0" โœ… Rainfall sufficient
Aug 2.2" 7.5" 0" โœ… Rainfall sufficient
Sep 2.2" 6.4" 0" โœ… Rainfall sufficient
Oct 2.2" 4.5" 0" โœ… Rainfall sufficient
Nov 2.2" 2.1" 0.1" ๐Ÿ’ง Light watering
Dec 2.2" 1.6" 0.6" ๐Ÿ’ง Light watering

Water needs are for active growing months only (Febโ€“Dec in Orange 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 ~1,175 GDD — county provides 7,120 GDD Excellent fit

Dill Planting Timeline โ€” Orange County, TX

Dill Planting Calendar

Activity When Date Range
Start Indoors January 15 Jan 15 โ€“ Jan 29
Transplant Outdoors February 5 Feb 5 โ€“ Feb 19
Direct Sow January 22 Jan 22 โ€“ Feb 12
Harvest March 19 Mar 19 โ€“ May 21
Fall Sowing October 16 Oct 16 โ€“ Oct 30

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

Month-by-Month Timeline

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

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: ideal

๐Ÿ—บ๏ธ USDA Zone

Zone 9a

๐Ÿ“† Growing Season

302 days in Orange County

Growing Tips for Dill in Orange County

Direct sow Dill outdoors after February 12 in Orange County when soil has warmed and frost danger has passed.

Sandy soil in Orange 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.

With summer highs reaching 98ยฐF in Orange County, provide afternoon shade for Dill and water deeply in the morning.

Your generous 303.0-day season in Orange 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 Orange County, TX?

Orange County is in Zone 9a with an average last frost of February 12. Plan your Dill planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Orange County, TX?

Orange County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 12 and first fall frost is December 11.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Orange County gardeners in Zone 9a 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 Orange County, TX. Local conditions may vary. Last updated: April 2026.