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When to Plant Crosne in Lycoming County, PA

Lycoming County, Pennsylvania Zone 6a May

This month in Lycoming County, Pennsylvania

A quick May briefing for Lycoming County, Pennsylvania gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 30
Avg. first frost October 18
Soil temp (4") 58°F
Watering Moderate
Pest pressure Low
Daylight 14.3 hrs

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Crosne (Chinese artichoke) produces small, segmented white tubers with a crunchy texture and mild artichoke-nutty flavor. They are a rare delicacy in French cuisine.

Lycoming County, Pennsylvania is in USDA Zone 6a. The average last spring frost is April 30 and the first fall frost is October 18, giving you a growing season of approximately 171 days.

At an elevation of 818 feet, Lycoming County receives approximately 40.3 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Crosne to ensure they mature before fall.

Lycoming County, PA (Zone 6a) Moderate season
171 days
Last Spring Frost April 30
171 growing days
First Fall Frost October 18
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Lycoming County Soil Profile

Soil Type

Silt Loam

Soil pH

4.8-6.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Apr 26 🍅 Harvest: Sep 27 – Nov 8
Recommended (50%) ✗ May not fit
Transplant: Apr 30 🍅 Harvest: Oct 1 – Nov 12
Safe Start (90%) ✗ May not fit
Transplant: May 16 🍅 Harvest: Oct 17 – Nov 28

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 Lycoming County

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

Soil pH

Your soil pH (4.8–6.8) is more acidic than Crosne prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

The silt loam soil in Lycoming County is excellent for Crosne — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Crosne.

Organic Matter

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

How to Plant Crosne

0.5"
Planting Depth
6"
Between Plants
12"
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
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Crosne

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

Month Crosne Needs Rainfall You Supplement Action
Jan 2.6" 0" ❄️ Dormant
Feb 2.6" 0" ❄️ Dormant
Mar 3.3" 0" ❄️ Dormant
Apr 4.3" 4" 0.3" 💧 Light watering
May 4.3" 3.6" 0.7" 💧 Light watering
Jun 4.3" 4.1" 0.2" 💧 Light watering
Jul 4.3" 3.7" 0.6" 💧 Light watering
Aug 4.3" 3.7" 0.6" 💧 Light watering
Sep 4.3" 3.2" 1.1" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 3.5" 0" ❄️ Dormant
Dec 3.1" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Oct in Lycoming County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Crosne 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.

Crosne needs ~2,275 GDD — county provides 2,223 GDD Tight fit

Crosne Planting Timeline — Lycoming County, PA

Crosne Planting Calendar

Activity When Date Range
Direct Sow April 16 Apr 16 – May 7
Harvest September 17 Sep 17 – Oct 29
Fall Sowing August 9 Aug 9 – Aug 23

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April Direct Sow
May Direct Sow
June
July
August Fall Sowing
September Harvest
October Harvest
November
December
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Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

150–200 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 6a

📆 Growing Season

171 days in Lycoming County

Growing Tips for Crosne in Lycoming County

Direct sow Crosne outdoors after April 30 in Lycoming County when soil has warmed and frost danger has passed.

Your 171.0-day growing season in Lycoming County is tight for Crosne (150.0-200.0 days to maturity). Start indoors and choose early-maturing varieties.

General growing tips

Plant tubers 3 inches deep in spring. Mark the location well as plants die back. Harvest in late fall after frost. Leave some tubers in ground for next year. Very labor-intensive to harvest.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Crosne in Lycoming County, PA?

Lycoming County is in Zone 6a with an average last frost of April 30. Plan your Crosne planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lycoming County, PA?

Lycoming County, Pennsylvania is in USDA Hardiness Zone 6a. The average last spring frost is April 30 and first fall frost is October 18.

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Your Lycoming County Garden Planner — Free

A 24-page printable planner built for Lycoming County (Zone 6a). 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 Lycoming County, PA. 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.