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When to plant Zucchini in Rooks County, KS

For Zucchini in Rooks County, the safe spring window opens around April 30 and closes around May 21. Last expected frost is April 23, first fall frost October 16, giving a 176-day growing season.

When to Plant Zucchini in Rooks County, KS

Zucchini
Rooks County, Kansas Zone 6a June

Top priorities for Rooks County, Kansas gardeners in June

Here's what deserves your attention in Rooks County, Kansas this month. Everything below is tailored to Zone 6a and timed around your local frost dates.

Avg. last frost April 23
Avg. first frost October 16
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 14.8 hrs
  1. Harvest zucchini as they ripen

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

Get ahead of July
  • First harvests: zucchini

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Zucchini is an incredibly prolific summer squash that can produce an abundance of fruit from just a few plants. It is versatile in the kitchen from grilling to baking.

Rooks County, Kansas is in USDA Zone 6a. The average last spring frost is April 23 and the first fall frost is October 16, giving you a growing season of approximately 176 days.

At an elevation of 691 feet, Rooks County receives approximately 20.4 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Zucchini during the growing season.

Rooks County, KS (Zone 6a) Moderate season
176 days
Last Spring Frost April 23
176 growing days
First Fall Frost October 16

Rooks County Soil Profile

Soil Type

Loam

Soil pH

6.3-7.7

Drainage

Well Drained

Zucchini Planting Risk Windows

Early Start (70% safe) ✓ Fits season (57 days to spare)
Start indoors: Mar 13 Transplant: May 1 🍅 Harvest: Jun 19 – Aug 14
Recommended (50%) ✓ Fits season (57 days to spare)
Start indoors: Mar 19 Transplant: May 7 🍅 Harvest: Jun 25 – Aug 20
Safe Start (90%) ✓ Fits season (55 days to spare)
Start indoors: Apr 2 Transplant: May 21 🍅 Harvest: Jul 9 – Sep 3

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 Rooks County

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

Soil pH

Your soil pH (6.3–7.7) overlaps with Zucchini's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Zucchini

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

Succession Planting Zucchini

4
successive plantings in your 176-day season

Sow every 5.1 weeks. Last sowing by Aug 17 to harvest before frost.

Zucchini Water Budget

Plant needs
1.2″/week
Rainfall provides
0.5″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 1,341 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Zucchini

Zucchini needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.

Month Zucchini Needs Rainfall You Supplement Action
Jan 0.5" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 5.2" 2.2" 3" 🚿 Regular watering
May 5.2" 2.7" 2.5" 💧 Light watering
Jun 5.2" 3.8" 1.4" 💧 Light watering
Jul 5.2" 2.4" 2.8" 🚿 Regular watering
Aug 5.2" 2.5" 2.7" 🚿 Regular watering
Sep 5.2" 1.7" 3.5" 🚿 Regular watering
Oct 5.2" 1.2" 4" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.5" 0" ❄️ Dormant

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

Zucchini 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.

Zucchini needs ~722 GDD — county provides 2,420 GDD Excellent fit

Zucchini Planting Timeline — Rooks County, KS

Zucchini Planting Calendar

Activity When Date Range
Start Indoors March 19 Mar 19 – Apr 2
Transplant Outdoors May 7 May 7 – May 21
Direct Sow April 30 Apr 30 – May 21
Harvest June 25 Jun 25 – Aug 20

Plant 1" deep · 30" apart · Rows 42" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.2"/week · 2-3 times/week

📅 Days to Maturity

45–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

176 days in Rooks County

Growing Tips for Zucchini in Rooks County

Direct sow Zucchini outdoors after April 23 in Rooks County when soil has warmed and frost danger has passed.

Your generous 176.0-day season in Rooks County allows multiple plantings of Zucchini. Sow every 22.0 days for continuous harvest.

Common pests for Zucchini in this region include squash vine borer and cucumber beetles. Use row covers early in the season and inspect plants weekly.

Rooks County receives only 20" of rain annually. Zucchini needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Direct sow after last frost. Harvest when fruits are 6-8 inches long for best flavor and texture. Check plants daily in summer as fruits can double in size overnight.

Companion Planting

Good Companions

Avoid Planting Near

  • Potatoes

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Zucchini in Rooks County, KS?

Rooks County is in Zone 6a with an average last frost of April 23. Plan your Zucchini planting based on this frost date — see the calendar above for exact timing.

What planting zone is Rooks County, KS?

Rooks County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 23 and first fall frost is October 16.

When should I plant Zucchini in Rooks County, KS?

In Rooks County, KS, plant Zucchini after the last frost (around April 23) and before the first frost (around October 16). Best results when soil holds above 50°F.

What growing zone is Rooks County, KS for Zucchini?

Rooks County sits in USDA Zone 6a. Zucchini grows reliably in zones 3a through 11b, so it's a good fit here.

Can Zucchini grow in Rooks County's climate?

Yes — Zucchini grows well in Rooks County's temperate climate. Rooks County averages a 176-day frost-free season, with last frost around April 23 and first frost around October 16.

🌱

Your Rooks County Garden Planner — Free

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.