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When to Plant Salsify in Haskell County, OK

Salsify is a root vegetable with a subtle oyster-like flavor, earning it the nickname "oyster plant." It produces long, slender, cream-colored roots.

Haskell County, Oklahoma is in USDA Zone 7a. The average last spring frost is March 28 and the first fall frost is November 3, giving you a growing season of approximately 220 days.

At an elevation of 691 feet, Haskell County receives approximately 29.2 inches of rainfall annually with predominantly loam soil. Summer highs average 91ยฐF, providing good warmth for Salsify during the growing season.

Haskell County, OK (Zone 7a) Long season
220 days
Last Spring Frost March 28
220 growing days
First Fall Frost November 3

Haskell County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.5

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (73 days to spare)
Transplant: Mar 21 🍅 Harvest: Jul 4 – Aug 15
Recommended (50%) ✓ Fits season (73 days to spare)
Transplant: Mar 28 🍅 Harvest: Jul 11 – Aug 22
Safe Start (90%) ✓ Fits season (76 days to spare)
Transplant: Apr 14 🍅 Harvest: Jul 28 – Sep 8

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.

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 1,040 gal / 100 sq ft
Drought risk

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

Salsify needs ~2,099 GDD — county provides 4,015 GDD Excellent fit

Salsify Planting Timeline โ€” Haskell County, OK

Salsify Planting Calendar

Activity When Date Range
Direct Sow March 14 Mar 14 โ€“ Apr 4
Fall Sowing August 25 Aug 25 โ€“ Sep 8
Harvest June 27 Jun 27 โ€“ Aug 8

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

100โ€“130 days

Soil pH

6 โ€“ 7.5

USDA Zone

Zone 7a

Growing Season

220 days

Growing Tips for Haskell County

Direct sow in spring in deeply worked, stone-free soil. Use fresh seed only as viability drops quickly. Harvest in late fall after frost for best flavor.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Salsify in Haskell County, OK?

Haskell County is in Zone 7a with an average last frost of March 28. Plan your Salsify planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Haskell County, OK?

Haskell County, Oklahoma is in USDA Hardiness Zone 7a. The average last spring frost is March 28 and first fall frost is November 3.

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Plan Your Garden with Confidence

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