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When to plant Rue in Clay County, KS

Clay County's short 192-day growing season means one Rue planting between April 21 and May 5. No fall crop in Zone 6b.

When to Plant Rue in Clay County, KS

Clay County, Kansas Zone 6b July

Your July planting checklist for Clay County, Kansas

We've pulled the most time-sensitive tasks for Clay County, Kansas this July and put them front and centre. Tackle them in order.

Avg. last frost April 14
Avg. first frost October 23
Soil temp (4") 77°F
Watering Moderate
Pest pressure High
Daylight 14.5 hrs
  1. Harvest rue as they ripen

    Check every 1–2 days. Many of these get tough or go to seed if you wait too long.

Before August arrives, get these ready
  • First harvests: rue

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Rue is a bitter, aromatic perennial herb with bluish-green foliage used historically in medicine and as a pest deterrent. Handle with care as its sap can cause skin irritation.

Clay County, Kansas is in USDA Zone 6b. The average last spring frost is April 14 and the first fall frost is October 23, giving you a growing season of approximately 192 days.

At an elevation of 519 feet, Clay County receives approximately 28 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Rue during the growing season.

Clay County, KS (Zone 6b) Moderate season
192 days
Last Spring Frost April 14
192 growing days
First Fall Frost October 23

Clay County Soil Profile

Soil Type

Loam

Soil pH

6.8-7.8

Drainage

Well Drained

Rue Planting Risk Windows

Early Start (70% safe) ✓ Fits season (46 days to spare)
Transplant: Apr 18 🍅 Harvest: Jun 27 – Aug 29
Recommended (50%) ✓ Fits season (52 days to spare)
Transplant: Apr 21 🍅 Harvest: Jun 30 – Sep 1
Safe Start (90%) ✓ Fits season (49 days to spare)
Transplant: May 4 🍅 Harvest: Jul 13 – Sep 14

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 Clay County

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

Soil pH

Your soil pH (6.8–7.8) overlaps with Rue's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Rue.

Organic Matter

Organic matter is moderate (3.5%). Annual compost additions will help Rue.

How to Plant Rue

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Rue

3
successive plantings in your 192-day season

Sow every 8 weeks. Last sowing by Jul 25 to harvest before frost.

Rue Water Budget

Plant needs
0.5″/week
Rainfall provides
0.6″/week
You supply
0.0″/week
Watering frequency Only during dry spells
Season total 77 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Rue

Rue needs approximately 0.5 inches of water per week (2.2" per month). Here's how your county's rainfall compares month by month.

Month Rue Needs Rainfall You Supplement Action
Jan 0.8" 0" ❄️ Dormant
Feb 1.1" 0" ❄️ Dormant
Mar 1.6" 0" ❄️ Dormant
Apr 2.2" 2.6" 0" ✅ Rainfall sufficient
May 2.2" 3.9" 0" ✅ Rainfall sufficient
Jun 2.2" 5.2" 0" ✅ Rainfall sufficient
Jul 2.2" 3.6" 0" ✅ Rainfall sufficient
Aug 2.2" 3.2" 0" ✅ Rainfall sufficient
Sep 2.2" 2.4" 0" ✅ Rainfall sufficient
Oct 2.2" 1.8" 0.4" 💧 Light watering
Nov 0.9" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

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

Rue 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.

Rue needs ~1,100 GDD — county provides 2,640 GDD Excellent fit

Rue Planting Timeline — Clay County, KS

Rue Planting Calendar

Activity When Date Range
Transplant Outdoors April 21 Apr 21 – May 5
Harvest June 30 Jun 30 – Sep 1

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Only during dry spells

📅 Days to Maturity

70–90 days

🧪 Soil pH

Needs 6–7.5 · Your soil: acceptable

🗺️ USDA Zone

Zone 6b

📆 Growing Season

192 days in Clay County

Growing Tips for Rue in Clay County

Direct sow Rue outdoors after April 14 in Clay County when soil has warmed and frost danger has passed.

General growing tips

Start seeds indoors or direct sow. Plant in well-drained soil. Wear gloves when handling as sap can cause phytophotodermatitis. Prune in early spring.

Companion Planting

Good Companions

Avoid Planting Near

  • Basil
  • Sage

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Rue in Clay County, KS?

Clay County is in Zone 6b with an average last frost of April 14. Plan your Rue planting based on this frost date — see the calendar above for exact timing.

What planting zone is Clay County, KS?

Clay County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 14 and first fall frost is October 23.

When should I plant Rue in Clay County, KS?

In Clay County, KS, plant Rue after the last frost (around April 14) and before the first frost (around October 23). Best results when soil holds above 50°F.

What growing zone is Clay County, KS for Rue?

Clay County sits in USDA Zone 6b. Rue grows reliably in zones 4a through 9b, so it's a good fit here.

Can Rue grow in Clay County's climate?

Yes — Rue grows well in Clay County's temperate climate. Clay County averages a 192-day frost-free season, with last frost around April 14 and first frost around October 23.

🌱

Your Clay County Garden Planner — Free

A 22-page printable planner built for Clay 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 Clay County, KS. Local conditions may vary. Last updated: July 2026.

Sources & credits

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