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When to Plant Crosne in Jim Wells County, TX

Jim Wells County, Texas Zone 9a April

Top priorities for Jim Wells County, Texas gardeners in April

If you only do a handful of things in the garden this April, make it these. They're sequenced around your zone's frost timing.

Avg. last frost February 13
Avg. first frost December 9
Soil temp (4") 55°F
Watering Low
Pest pressure High
Daylight 12.7 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.

Jim Wells County, Texas is in USDA Zone 9a. The average last spring frost is February 13 and the first fall frost is December 9, giving you a growing season of approximately 299 days.

At an elevation of 4,949 feet, Jim Wells County receives approximately 65.4 inches of rainfall annually with predominantly loam soil. Summer highs average 101°F, so Crosne may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Crosne root diseases.

Jim Wells County, TX (Zone 9a) Year-round
299 days
Last Spring Frost February 13
299 growing days
First Fall Frost December 9

Jim Wells County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (97 days to spare)
Transplant: Jan 20 🍅 Harvest: Jun 23 – Aug 25
Recommended (50%) ✓ Fits season (82 days to spare)
Transplant: Feb 13 🍅 Harvest: Jul 17 – Sep 18
Safe Start (90%) ✓ Fits season (70 days to spare)
Transplant: Mar 8 🍅 Harvest: Aug 9 – Oct 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 Jim Wells County

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

Soil pH

Your soil pH (6.7–7.3) overlaps with Crosne's range (6.0–7.0), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is low (2.0%). Add 2-3 inches of compost before planting Crosne.

How to Plant Crosne

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
You supply
0.1″/week
Watering frequency Only during dry spells
Season total 270 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 1.9" 0" ❄️ Dormant
Feb 4.3" 2.4" 1.9" 💧 Light watering
Mar 4.3" 4.5" 0" ✅ Rainfall sufficient
Apr 4.3" 7.3" 0" ✅ Rainfall sufficient
May 4.3" 9.1" 0" ✅ Rainfall sufficient
Jun 4.3" 9.8" 0" ✅ Rainfall sufficient
Jul 4.3" 8.9" 0" ✅ Rainfall sufficient
Aug 4.3" 7" 0" ✅ Rainfall sufficient
Sep 4.3" 6.6" 0" ✅ Rainfall sufficient
Oct 4.3" 3.9" 0.4" 💧 Light watering
Nov 4.3" 2.5" 1.8" 💧 Light watering
Dec 4.3" 1.6" 2.7" 🚿 Regular watering

Water needs are for active growing months only (Feb–Dec in Jim Wells 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 ~4,506 GDD — county provides 7,725 GDD Excellent fit

Crosne Planting Timeline — Jim Wells County, TX

Crosne Planting Calendar

Activity When Date Range
Direct Sow January 23 Jan 23 – Feb 13
Harvest June 26 Jun 26 – Aug 28
Fall Sowing October 14 Oct 14 – Oct 28

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

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

150–200 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

299 days in Jim Wells County

Growing Tips for Crosne in Jim Wells County

Direct sow Crosne outdoors after February 13 in Jim Wells County when soil has warmed and frost danger has passed.

With summer highs reaching 101°F in Jim Wells County, provide afternoon shade for Crosne and water deeply in the morning.

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 Jim Wells County, TX?

Jim Wells County is in Zone 9a with an average last frost of February 13. Plan your Crosne planting based on this frost date — see the calendar above for exact timing.

What planting zone is Jim Wells County, TX?

Jim Wells County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 13 and first fall frost is December 9.

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Your Jim Wells County Garden Planner — Free

A 24-page printable planner built for Jim Wells County (Zone 9a). 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 Jim Wells County, TX. Local conditions may vary. Last updated: April 2026.

Sources & credits

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