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When to Plant Sunchoke in Ward County, TX

Sunchokes (Jerusalem artichokes) are a native sunflower relative grown for their knobby, nutty-flavored tubers. They are extremely productive and nearly impossible to eradicate.

Ward County, Texas is in USDA Zone 7b. The average last spring frost is March 25 and the first fall frost is November 10, giving you a growing season of approximately 230 days.

At an elevation of 2,652 feet, Ward County receives approximately 53.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98ยฐF, so Sunchoke may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Sunchoke will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Sunchoke root diseases.

Ward County, TX (Zone 7b) Long season
230 days
Last Spring Frost March 25
230 growing days
First Fall Frost November 10

Ward County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.8-8.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (44 days to spare)
Transplant: Apr 1 🍅 Harvest: Jul 22 – Sep 16
Recommended (50%) ✓ Fits season (48 days to spare)
Transplant: Apr 8 🍅 Harvest: Jul 29 – Sep 23
Safe Start (90%) ✓ Fits season (43 days to spare)
Transplant: Apr 30 🍅 Harvest: Aug 20 – Oct 15

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 Ward County

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

Soil pH

Your soil pH (7.8โ€“8.1) is more alkaline than Sunchoke prefers (6.0โ€“7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Sunchoke.

Organic Matter

Organic matter is low (0.9%). Add 2-3 inches of compost before planting Sunchoke.

How to Plant Sunchoke

1"
Planting Depth
30"
Between Plants
42"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.0″/week
You supply
0.4″/week
Watering frequency 1-2 times/week
Season total 802 gal / 100 sq ft
Drought risk

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

Sunchoke needs ~3,055 GDD — county provides 5,405 GDD Excellent fit

Sunchoke Planting Timeline โ€” Ward County, TX

Sunchoke Planting Calendar

Activity When Date Range
Transplant Outdoors April 8 Apr 8 โ€“ Apr 22
Harvest July 29 Jul 29 โ€“ Sep 23

Plant 1" deep ยท 30" apart ยท Rows 42" apart

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March โ€”
April Transplant Outdoors
May โ€”
June โ€”
July Harvest
August Harvest
September Harvest
October โ€”
November โ€”
December โ€”

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

1"/week ยท 1-2 times/week

๐Ÿ“… Days to Maturity

110โ€“150 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: too_alkaline

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

230 days in Ward County

Growing Tips for Sunchoke in Ward County

Direct sow Sunchoke outdoors after March 25 in Ward County when soil has warmed and frost danger has passed.

Sandy soil in Ward County dries quickly โ€” mulch Sunchoke 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 Ward County, provide afternoon shade for Sunchoke and water deeply in the morning.

Common pests for Sunchoke in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Plant tubers 4 inches deep in early spring. Contain plants with barriers as they spread aggressively. Harvest after frost or leave in ground and dig as needed through winter.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Sunchoke in Ward County, TX?

Ward County is in Zone 7b with an average last frost of March 25. Plan your Sunchoke planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Ward County, TX?

Ward County, Texas is in USDA Hardiness Zone 7b. The average last spring frost is March 25 and first fall frost is November 10.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Ward County gardeners in Zone 7b 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 Ward County, TX. Local conditions may vary. Last updated: April 2026.