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When to Plant Salsify in Lincoln County, OK

Lincoln County, Oklahoma Zone 7b May

What to do in May

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

Avg. last frost April 6
Avg. first frost November 2
Soil temp (4") 67°F
Watering Moderate
Pest pressure Moderate
Daylight 13.9 hrs

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

Lincoln County, Oklahoma is in USDA Zone 7b. The average last spring frost is April 6 and the first fall frost is November 2, giving you a growing season of approximately 210 days.

At an elevation of 853 feet, Lincoln County receives approximately 22.3 inches of rainfall annually with predominantly loam soil. Summer highs average 92°F, providing good warmth for Salsify during the growing season.

Lincoln County, OK (Zone 7b) Long season
210 days
Last Spring Frost April 6
210 growing days
First Fall Frost November 2
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Lincoln County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.2

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (63 days to spare)
Transplant: Mar 27 🍅 Harvest: Jul 10 – Aug 21
Recommended (50%) ✓ Fits season (63 days to spare)
Transplant: Apr 6 🍅 Harvest: Jul 20 – Aug 31
Safe Start (90%) ✓ Fits season (69 days to spare)
Transplant: Apr 18 🍅 Harvest: Aug 1 – Sep 12

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 Lincoln County

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

Soil pH

Your soil pH (6.7–7.2) is within Salsify's preferred range (6.0–7.5).

Soil Texture

The loam soil in Lincoln County is excellent for Salsify — good drainage, moisture retention, and nutrient holding capacity.

Drainage

Drainage is adequate for Salsify.

Organic Matter

Organic matter is excellent (4.3%) — Salsify will thrive.

How to Plant Salsify

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.5″/week
You supply
1.0″/week
Watering frequency 2-3 times/week
Season total 1,915 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Salsify

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

Month Salsify Needs Rainfall You Supplement Action
Jan 0.6" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.2" 0" ❄️ Dormant
Apr 4.3" 2.1" 2.2" 🚿 Regular watering
May 4.3" 3.1" 1.2" 💧 Light watering
Jun 4.3" 3.9" 0.4" 💧 Light watering
Jul 4.3" 2.6" 1.7" 💧 Light watering
Aug 4.3" 2.8" 1.5" 💧 Light watering
Sep 4.3" 2.3" 2" 💧 Light watering
Oct 4.3" 1.5" 2.8" 🚿 Regular watering
Nov 4.3" 0.8" 3.5" 🚿 Regular watering
Dec 0.5" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Lincoln County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Salsify 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.

Salsify needs ~2,185 GDD — county provides 3,990 GDD Excellent fit

Salsify Planting Timeline — Lincoln County, OK

Salsify Planting Calendar

Activity When Date Range
Direct Sow March 23 Mar 23 – Apr 13
Harvest July 6 Jul 6 – Aug 17
Fall Sowing August 24 Aug 24 – Sep 7

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

100–130 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

210 days in Lincoln County

Growing Tips for Salsify in Lincoln County

Direct sow Salsify outdoors after April 06 in Lincoln County when soil has warmed and frost danger has passed.

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

Lincoln County receives only 22" of rain annually. Salsify needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Salsify in Lincoln County, OK?

Lincoln County is in Zone 7b with an average last frost of April 6. Plan your Salsify planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lincoln County, OK?

Lincoln County, Oklahoma is in USDA Hardiness Zone 7b. The average last spring frost is April 6 and first fall frost is November 2.

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Your Lincoln County Garden Planner — Free

A 24-page printable planner built for Lincoln County (Zone 7b). 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 Lincoln County, OK. Local conditions may vary. Last updated: May 2026.

Sources & credits

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