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When to plant Amaranth in Sedgwick County, KS

For Sedgwick County, gardeners: plant Amaranth April 19 through May 10 once soil reads 50°F.

When to Plant Amaranth in Sedgwick County, KS

Sedgwick County, Kansas Zone 7a June

Your June game plan for Sedgwick County, Kansas

A quick June briefing for Sedgwick County, Kansas gardeners — what's urgent, what's next, and what can wait.

Avg. last frost April 12
Avg. first frost October 25
Soil temp (4") 75°F
Watering Low
Pest pressure High
Daylight 14.6 hrs
A few tasks this June that'll pay off in July
  • First harvests: amaranth

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Amaranth is an ancient grain crop with edible leaves and seeds, rich in protein and micronutrients. It thrives in warm conditions and is drought-tolerant once established.

Sedgwick County, Kansas is in USDA Zone 7a. The average last spring frost is April 12 and the first fall frost is October 25, giving you a growing season of approximately 196 days.

At an elevation of 546 feet, Sedgwick County receives approximately 34.2 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Amaranth during the growing season.

Sedgwick County, KS (Zone 7a) Moderate season
196 days
Last Spring Frost April 12
196 growing days
First Fall Frost October 25

Sedgwick County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.5

Drainage

Well Drained

Amaranth Planting Risk Windows

Early Start (70% safe) ✓ Fits season (40 days to spare)
Start indoors: Feb 17 Transplant: Apr 21 🍅 Harvest: Jul 21 – Sep 8
Recommended (50%) ✓ Fits season (42 days to spare)
Start indoors: Feb 22 Transplant: Apr 26 🍅 Harvest: Jul 26 – Sep 13
Safe Start (90%) ✓ Fits season (43 days to spare)
Start indoors: Mar 8 Transplant: May 10 🍅 Harvest: Aug 9 – Sep 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 Sedgwick County

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

Soil pH

Your soil pH (6.3–7.5) is within Amaranth's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

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

How to Plant Amaranth

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Amaranth Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.3″/week
Watering frequency 1-2 times/week
Season total 559 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Amaranth

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

Month Amaranth Needs Rainfall You Supplement Action
Jan 0.8" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 2.3" 0" ❄️ Dormant
Apr 4.3" 3.6" 0.7" 💧 Light watering
May 4.3" 5.5" 0" ✅ Rainfall sufficient
Jun 4.3" 5.8" 0" ✅ Rainfall sufficient
Jul 4.3" 4.1" 0.2" 💧 Light watering
Aug 4.3" 4" 0.3" 💧 Light watering
Sep 4.3" 2.6" 1.7" 💧 Light watering
Oct 4.3" 2.3" 2" 💧 Light watering
Nov 1" 0" ❄️ Dormant
Dec 0.9" 0" ❄️ Dormant

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

Amaranth 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.

Amaranth needs ~1,601 GDD — county provides 2,989 GDD Excellent fit

Amaranth Planting Timeline — Sedgwick County, KS

Amaranth Planting Calendar

Activity When Date Range
Start Indoors February 22 Feb 22 – Mar 8
Transplant Outdoors April 26 Apr 26 – May 10
Direct Sow April 19 Apr 19 – May 10
Harvest July 26 Jul 26 – Sep 13

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 7a

📆 Growing Season

196 days in Sedgwick County

Growing Tips for Amaranth in Sedgwick County

Direct sow Amaranth outdoors after April 12 in Sedgwick County when soil has warmed and frost danger has passed.

General growing tips

Direct sow after last frost when soil is warm. Thin seedlings to 18 inches apart. Harvest leaves when young and tender; harvest seeds when flower heads begin to dry.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Amaranth in Sedgwick County, KS?

Sedgwick County is in Zone 7a with an average last frost of April 12. Plan your Amaranth planting based on this frost date — see the calendar above for exact timing.

What planting zone is Sedgwick County, KS?

Sedgwick County, Kansas is in USDA Hardiness Zone 7a. The average last spring frost is April 12 and first fall frost is October 25.

When should I plant Amaranth in Sedgwick County, KS?

In Sedgwick County, KS, plant Amaranth after the last frost (around April 12) and before the first frost (around October 25). Best results when soil holds above 50°F.

What growing zone is Sedgwick County, KS for Amaranth?

Sedgwick County sits in USDA Zone 7a. Amaranth grows reliably in zones 2a through 11b, so it's a good fit here.

Can Amaranth grow in Sedgwick County's climate?

Yes — Amaranth grows well in Sedgwick County's temperate climate. Sedgwick County averages a 196-day frost-free season, with last frost around April 12 and first frost around October 25.

🌱

Your Sedgwick County Garden Planner — Free

A 22-page printable planner built for Sedgwick County (Zone 7a). 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 Sedgwick County, KS. Local conditions may vary. Last updated: June 2026.

Sources & credits

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