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When to plant Fennel (herb) in Queen Anne's County County,

For Fennel (herb) in Queen Anne's County County, the safe spring window opens around March 17 and closes around April 7. Last expected frost is March 31, first fall frost November 6, giving a 220-day growing season. A second sowing from August 28 to September 11 extends the harvest into fall.

When to Plant Fennel (herb) in Queen Anne's County, MD

Queen Anne's County, Maryland Zone 7b June

June to-do list for Queen Anne's County, Maryland

We've pulled the most time-sensitive tasks for Queen Anne's County, Maryland this June and put them front and centre. Tackle them in order.

Avg. last frost March 31
Avg. first frost November 6
Soil temp (4") 76°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. Start harvesting fennel (herb)

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

To set up a strong July, finish these tasks
  • First harvests: fennel (herb)

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Herb fennel is grown for its aromatic leaves, stalks, and seeds rather than a bulb. It has a strong anise flavor and its flowers attract beneficial insects.

Queen Anne's County, Maryland is in USDA Zone 7b. The average last spring frost is March 31 and the first fall frost is November 6, giving you a growing season of approximately 220 days.

At an elevation of 479 feet, Queen Anne's County receives approximately 49.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Fennel (herb) during the growing season.

Queen Anne's County, MD (Zone 7b) Long season
220 days
Last Spring Frost March 31
220 growing days
First Fall Frost November 6

Queen Anne's County Soil Profile

Soil Type

Silt Loam

Soil pH

5.3-7

Drainage

Well Drained

Fennel (herb) Planting Risk Windows

Early Start (70% safe) ✓ Fits season (93 days to spare)
Start indoors: Feb 20 Transplant: Mar 20 🍅 Harvest: May 22 – Jul 31
Recommended (50%) ✓ Fits season (94 days to spare)
Start indoors: Feb 24 Transplant: Mar 24 🍅 Harvest: May 26 – Aug 4
Safe Start (90%) ✓ Fits season (94 days to spare)
Start indoors: Mar 9 Transplant: Apr 6 🍅 Harvest: Jun 8 – Aug 17

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 Queen Anne's County

How your county's soil matches Fennel (herb)'s growing requirements.

Soil pH

Your soil pH (5.3–7.0) overlaps with Fennel (herb)'s range (5.5–7.0), though not a perfect match.

Soil Texture

The silt loam soil in Queen Anne's County is excellent for Fennel (herb) — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.2%). Annual compost additions will help Fennel (herb).

How to Plant Fennel (herb)

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Fennel (herb)

4
successive plantings in your 220-day season

Sow every 6.9 weeks. Last sowing by Aug 08 to harvest before frost.

For a dedicated fall crop, sow by Aug 28.

Fennel (herb) Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 100 gal / 100 sq ft

Monthly Watering Guide for Fennel (herb)

Fennel (herb) needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Fennel (herb) Needs Rainfall You Supplement Action
Jan 3.4" 0" ❄️ Dormant
Feb 3.4" 0" ❄️ Dormant
Mar 4.3" 4" 0.3" 💧 Light watering
Apr 4.3" 3.9" 0.4" 💧 Light watering
May 4.3" 4.9" 0" ✅ Rainfall sufficient
Jun 4.3" 4.3" 0" ✅ Rainfall sufficient
Jul 4.3" 5.4" 0" ✅ Rainfall sufficient
Aug 4.3" 4.2" 0.1" 💧 Light watering
Sep 4.3" 4.7" 0" ✅ Rainfall sufficient
Oct 4.3" 3.9" 0.4" 💧 Light watering
Nov 4.3" 3.9" 0.4" 💧 Light watering
Dec 3.6" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Queen Anne's County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Fennel (herb) 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.

Fennel (herb) needs ~1,481 GDD — county provides 4,345 GDD Excellent fit

Fennel (herb) Planting Timeline — Queen Anne's County, MD

Fennel (herb) Planting Calendar

Activity When Date Range
Start Indoors February 24 Feb 24 – Mar 10
Transplant Outdoors March 24 Mar 24 – Apr 7
Direct Sow March 17 Mar 17 – Apr 7
Harvest May 26 May 26 – Aug 4
Fall Sowing August 28 Aug 28 – Sep 11

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.5–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

220 days in Queen Anne's County

Growing Tips for Fennel (herb) in Queen Anne's County

Direct sow Fennel (herb) outdoors after March 31 in Queen Anne's County when soil has warmed and frost danger has passed.

Common pests for Fennel (herb) 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 or fall. Unlike Florence fennel, herb fennel does not form a bulb. Harvest fronds as needed and seeds when they turn brown. Self-sows readily.

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Fennel (herb) in Queen Anne's County, MD?

Queen Anne's County is in Zone 7b with an average last frost of March 31. Plan your Fennel (herb) planting based on this frost date — see the calendar above for exact timing.

What planting zone is Queen Anne's County, MD?

Queen Anne's County, Maryland is in USDA Hardiness Zone 7b. The average last spring frost is March 31 and first fall frost is November 6.

When should I plant Fennel (herb) in Queen Anne's County County, ?

In Queen Anne's County County, , plant Fennel (herb) after the last frost (around March 31) and before the first frost (around November 6). Best results when soil holds above 50°F.

What growing zone is Queen Anne's County County, for Fennel (herb)?

Queen Anne's County County sits in USDA Zone 7b. Fennel (herb) grows reliably in zones 4a through 10b, so it's a good fit here.

Can Fennel (herb) grow in Queen Anne's County County's climate?

Yes — Fennel (herb) grows well in Queen Anne's County County's temperate climate. Queen Anne's County County averages a 220-day frost-free season, with last frost around March 31 and first frost around November 6.

🌱

Your Queen Anne's County Garden Planner — Free

A 22-page printable planner built for Queen Anne's County (Zone 7b). 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 Queen Anne's County, MD. Local conditions may vary. Last updated: June 2026.

Sources & credits

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