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When to Plant Sunchoke in Wood 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.

Wood County, Texas is in USDA Zone 8a. The average last spring frost is March 12 and the first fall frost is November 16, giving you a growing season of approximately 249 days.

At an elevation of 15 feet, Wood County receives approximately 65.7 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94ยฐF, providing good warmth for Sunchoke during the growing season. 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.

Wood County, TX (Zone 8a) Long season
249 days
Last Spring Frost March 12
249 growing days
First Fall Frost November 16

Wood County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.8-6.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (69 days to spare)
Transplant: Mar 19 🍅 Harvest: Jul 9 – Sep 3
Recommended (50%) ✓ Fits season (67 days to spare)
Transplant: Mar 26 🍅 Harvest: Jul 16 – Sep 10
Safe Start (90%) ✓ Fits season (63 days to spare)
Transplant: Apr 13 🍅 Harvest: Aug 3 – Sep 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 Wood County

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

Soil pH

Your soil pH (5.8โ€“6.5) overlaps with Sunchoke's range (6.0โ€“7.5), though not a perfect match.

Soil Texture

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

Organic Matter

Organic matter is low (1.8%). 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
1.1″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Sunchoke

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

Month Sunchoke Needs Rainfall You Supplement Action
Jan โ€” 1.9" 0" โ„๏ธ Dormant
Feb โ€” 2.1" 0" โ„๏ธ Dormant
Mar 4.3" 4.4" 0" โœ… Rainfall sufficient
Apr 4.3" 6.7" 0" โœ… Rainfall sufficient
May 4.3" 10.7" 0" โœ… Rainfall sufficient
Jun 4.3" 9.1" 0" โœ… Rainfall sufficient
Jul 4.3" 8.6" 0" โœ… Rainfall sufficient
Aug 4.3" 7.7" 0" โœ… Rainfall sufficient
Sep 4.3" 6.4" 0" โœ… Rainfall sufficient
Oct 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Nov 4.3" 2.5" 1.8" ๐Ÿ’ง Light watering
Dec โ€” 1.5" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Marโ€“Nov in Wood County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Sunchoke 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" โ€” every day above 50ยฐF 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.

Sunchoke needs ~2,665 GDD — county provides 5,104 GDD Excellent fit

Sunchoke Planting Timeline โ€” Wood County, TX

Sunchoke Planting Calendar

Activity When Date Range
Transplant Outdoors March 26 Mar 26 โ€“ Apr 9
Harvest July 16 Jul 16 โ€“ Sep 10

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

Month-by-Month Timeline

MonthActivities
January โ€”
February โ€”
March Transplant Outdoors
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 Natural rainfall sufficient

๐Ÿ“… Days to Maturity

110โ€“150 days

๐Ÿงช Soil pH

Needs 6โ€“7.5 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 8a

๐Ÿ“† Growing Season

249 days in Wood County

Growing Tips for Sunchoke in Wood County

Direct sow Sunchoke outdoors after March 12 in Wood County when soil has warmed and frost danger has passed.

Sandy soil in Wood 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.

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Sunchoke in Wood County, TX?

Wood County is in Zone 8a with an average last frost of March 12. Plan your Sunchoke planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Wood County, TX?

Wood County, Texas is in USDA Hardiness Zone 8a. The average last spring frost is March 12 and first fall frost is November 16.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Wood County gardeners in Zone 8a 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 Wood County, TX. Local conditions may vary. Last updated: April 2026.