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When to Plant Parsnip in Queen Anne's County, MD

Queen Anne's County, Maryland Zone 7b May

Your May planting checklist for Queen Anne's County, Maryland

A quick May briefing for Queen Anne's County, Maryland gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 31
Avg. first frost November 6
Soil temp (4") 68°F
Watering Low
Pest pressure Moderate
Daylight 14.1 hrs
Before June arrives, get these ready
  • First harvests: parsnip

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Parsnips are a sweet, nutty root vegetable that develops best flavor after exposure to frost. They require a long growing season but reward patient gardeners.

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 Parsnip 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

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (72 days to spare)
Transplant: Mar 27 🍅 Harvest: Jul 10 – Aug 21
Recommended (50%) ✓ Fits season (73 days to spare)
Transplant: Mar 31 🍅 Harvest: Jul 14 – Aug 25
Safe Start (90%) ✓ Fits season (73 days to spare)
Transplant: Apr 13 🍅 Harvest: Jul 27 – Sep 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 Queen Anne's County

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

Soil pH

Your soil pH (5.3–7.0) overlaps with Parsnip's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Parsnip

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

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

Plant 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 Parsnip

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

Month Parsnip 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.

Parsnip 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.

Parsnip needs ~2,271 GDD — county provides 4,345 GDD Excellent fit

Parsnip Planting Timeline — Queen Anne's County, MD

Parsnip Planting Calendar

Activity When Date Range
Direct Sow March 17 Mar 17 – Apr 7
Harvest June 30 Jun 30 – Aug 11
Fall Sowing August 28 Aug 28 – Sep 11

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

Month-by-Month Timeline

MonthActivities
January
February
March Direct Sow
April Direct Sow
May
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

100–130 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 7b

📆 Growing Season

220 days in Queen Anne's County

Growing Tips for Parsnip in Queen Anne's County

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

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

General growing tips

Use only fresh seed as parsnip seed viability declines rapidly. Sow directly in spring in deeply worked soil. Leave roots in the ground through winter for sweetest flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Carrots
  • Celery

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Parsnip in Queen Anne's County, MD?

Queen Anne's County is in Zone 7b with an average last frost of March 31. Plan your Parsnip 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.

🌱

Your Queen Anne's County Garden Planner — Free

A 24-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: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.