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When to Plant Artichoke in Garvin County, OK

Globe artichokes are large thistle-like perennials prized for their edible flower buds. They produce striking silvery foliage and can be grown as ornamentals.

Garvin County, Oklahoma is in USDA Zone 7b. The average last spring frost is April 4 and the first fall frost is November 3, giving you a growing season of approximately 213 days.

At an elevation of 515 feet, Garvin County receives approximately 31.4 inches of rainfall annually with predominantly loam soil. Summer highs average 93ยฐF, providing good warmth for Artichoke during the growing season.

Garvin County, OK (Zone 7b) Long season
213 days
Last Spring Frost April 4
213 growing days
First Fall Frost November 3

Garvin County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (3 days to spare)
Transplant: Apr 9 🍅 Harvest: Aug 13 – Oct 22
Recommended (50%) ✓ Fits season (3 days to spare)
Transplant: Apr 18 🍅 Harvest: Aug 22 – Oct 31
Safe Start (90%) ✓ Fits season (10 days to spare)
Transplant: Apr 29 🍅 Harvest: Sep 2 – Nov 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 Garvin County

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

Soil pH

Your soil pH (6.3โ€“7.2) overlaps with Artichoke's range (6.5โ€“8.0), though not a perfect match.

Soil Texture

The loam soil in Garvin County is excellent for Artichoke โ€” good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (3.3%). Annual compost additions will help Artichoke.

How to Plant Artichoke

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

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.6″/week
You supply
0.5″/week
Watering frequency 1-2 times/week
Season total 866 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Artichoke

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

Month Artichoke Needs Rainfall You Supplement Action
Jan โ€” 0.7" 0" โ„๏ธ Dormant
Feb โ€” 1.2" 0" โ„๏ธ Dormant
Mar โ€” 2.2" 0" โ„๏ธ Dormant
Apr 4.3" 3.2" 1.1" ๐Ÿ’ง Light watering
May 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Jun 4.3" 5" 0" โœ… Rainfall sufficient
Jul 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Aug 4.3" 4.1" 0.2" ๐Ÿ’ง Light watering
Sep 4.3" 2.9" 1.4" ๐Ÿ’ง Light watering
Oct 4.3" 2.1" 2.2" ๐Ÿšฟ Regular watering
Nov 4.3" 1.1" 3.2" ๐Ÿšฟ Regular watering
Dec โ€” 0.8" 0" โ„๏ธ Dormant

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

Artichoke 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.

Artichoke needs ~2,962 GDD — county provides 4,206 GDD Excellent fit

Artichoke Planting Timeline โ€” Garvin County, OK

Artichoke Planting Calendar

Activity When Date Range
Transplant Outdoors April 18 Apr 18 โ€“ May 2
Harvest August 22 Aug 22 โ€“ Oct 31

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 Transplant Outdoors
June โ€”
July โ€”
August Harvest
September Harvest
October Harvest
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

120โ€“180 days

๐Ÿงช Soil pH

Needs 6.5โ€“8 ยท Your soil: acceptable

๐Ÿ—บ๏ธ USDA Zone

Zone 7b

๐Ÿ“† Growing Season

213 days in Garvin County

Growing Tips for Artichoke in Garvin County

Direct sow Artichoke outdoors after April 04 in Garvin County when soil has warmed and frost danger has passed.

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

General growing tips

Start seeds indoors 8-10 weeks before last frost. Provide consistent moisture and mulch heavily. Harvest buds before scales begin to open for best flavor.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Artichoke in Garvin County, OK?

Garvin County is in Zone 7b with an average last frost of April 4. Plan your Artichoke planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Garvin County, OK?

Garvin County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is April 4 and first fall frost is November 3.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Garvin County gardeners in Zone 7b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Garvin County, OK. Local conditions may vary. Last updated: April 2026.