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When to plant Scallions in Stevens County, KS

For Stevens County, gardeners: plant Scallions April 6 through April 27 once soil reads 50°F. A second sowing from August 7 to August 21 extends the harvest into fall.

When to Plant Scallions in Stevens County, KS

Stevens County, Kansas Zone 6b June

Your June game plan for Stevens County, Kansas

June rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Stevens County, Kansas.

Avg. last frost April 20
Avg. first frost October 16
Soil temp (4") 74°F
Watering High
Pest pressure High
Daylight 14.5 hrs
  1. Start harvesting scallions

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

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Scallions (green onions) are mild-flavored alliums harvested for their slender green tops and white bases. They are quick-growing and perfect for succession planting.

Stevens County, Kansas is in USDA Zone 6b. The average last spring frost is April 20 and the first fall frost is October 16, giving you a growing season of approximately 179 days.

At an elevation of 1,123 feet, Stevens County receives approximately 31.9 inches of rainfall annually with predominantly loam soil. Summer highs average 86°F, providing good warmth for Scallions during the growing season.

Stevens County, KS (Zone 6b) Moderate season
179 days
Last Spring Frost April 20
179 growing days
First Fall Frost October 16

Stevens County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.8

Drainage

Well Drained

Scallions Planting Risk Windows

Early Start (70% safe) ✓ Fits season (97 days to spare)
Start indoors: Mar 11 Transplant: Apr 15 🍅 Harvest: Jun 10 – Jul 8
Recommended (50%) ✓ Fits season (95 days to spare)
Start indoors: Mar 16 Transplant: Apr 20 🍅 Harvest: Jun 15 – Jul 13
Safe Start (90%) ✓ Fits season (96 days to spare)
Start indoors: Mar 30 Transplant: May 4 🍅 Harvest: Jun 29 – Jul 27

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 Stevens County

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

Soil pH

Your soil pH (6.5–7.8) is more alkaline than Scallions prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

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

Drainage

Drainage is adequate for Scallions.

Organic Matter

Organic matter is moderate (3.9%). Annual compost additions will help Scallions.

How to Plant Scallions

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

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

Succession Planting Scallions

4
successive plantings in your 179-day season

Sow every 5.7 weeks. Last sowing by Aug 07 to harvest before frost.

For a dedicated fall crop, sow by Aug 07.

Scallions Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,054 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Scallions

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

Month Scallions Needs Rainfall You Supplement Action
Jan 2.4" 0" ❄️ Dormant
Feb 1.7" 0" ❄️ Dormant
Mar 2.9" 0" ❄️ Dormant
Apr 4.3" 3.1" 1.2" 💧 Light watering
May 4.3" 3.9" 0.4" 💧 Light watering
Jun 4.3" 2.5" 1.8" 💧 Light watering
Jul 4.3" 2.7" 1.6" 💧 Light watering
Aug 4.3" 3" 1.3" 💧 Light watering
Sep 4.3" 2.5" 1.8" 💧 Light watering
Oct 4.3" 2.8" 1.5" 💧 Light watering
Nov 2.4" 0" ❄️ Dormant
Dec 1.9" 0" ❄️ Dormant

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

Scallions 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.

Scallions needs ~870 GDD — county provides 2,595 GDD Excellent fit

Scallions Planting Timeline — Stevens County, KS

Scallions Planting Calendar

Activity When Date Range
Start Indoors March 16 Mar 16 – Mar 30
Transplant Outdoors April 20 Apr 20 – May 4
Direct Sow April 6 Apr 6 – Apr 27
Harvest June 15 Jun 15 – Jul 13
Fall Sowing August 7 Aug 7 – Aug 21

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

Month-by-Month Timeline

MonthActivities
January
February
March Start Indoors
April Transplant Outdoors Direct Sow
May Transplant Outdoors
June Harvest
July Harvest
August Fall Sowing
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

179 days in Stevens County

Growing Tips for Scallions in Stevens County

Direct sow Scallions outdoors after April 20 in Stevens County when soil has warmed and frost danger has passed.

Common pests for Scallions in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow every 3 weeks for continuous harvest. Thin to 1 inch apart or grow in clusters. Harvest when pencil-thick by pulling or cutting at soil level.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Scallions in Stevens County, KS?

Stevens County is in Zone 6b with an average last frost of April 20. Plan your Scallions planting based on this frost date — see the calendar above for exact timing.

What planting zone is Stevens County, KS?

Stevens County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 20 and first fall frost is October 16.

When should I plant Scallions in Stevens County, KS?

In Stevens County, KS, plant Scallions after the last frost (around April 20) and before the first frost (around October 16). Best results when soil holds above 50°F.

What growing zone is Stevens County, KS for Scallions?

Stevens County sits in USDA Zone 6b. Scallions grows reliably in zones 3a through 10b, so it's a good fit here.

Can Scallions grow in Stevens County's climate?

Yes — Scallions grows well in Stevens County's temperate climate. Stevens County averages a 179-day frost-free season, with last frost around April 20 and first frost around October 16.

🌱

Your Stevens County Garden Planner — Free

A 22-page printable planner built for Stevens County (Zone 6b). 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 Stevens County, KS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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