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When to plant Roses in Lyon County, KS

In Lyon County, Roses is a single-season spring crop — there's no second fall window. Plant April 19–May 3 for an 180-day harvest, finishing well before the October 25 first frost.

When to Plant Roses in Lyon County, KS

Lyon County, Kansas Zone 6b June

June to-do list for Lyon County, Kansas

Each item below is timed to Lyon County, Kansas's frost dates and soil temperatures. Skip nothing, stress about nothing.

Avg. last frost April 12
Avg. first frost October 25
Soil temp (4") 76°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. Begin indoor sowing: roses

    Label every cell. You will absolutely forget which is which otherwise.

  2. Collect roses at their peak

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Coming up in July — start thinking about
  • First harvests: roses

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Roses (Rosa spp.) are the world's most beloved flowering shrubs, grown for centuries for their exquisite blooms, fragrance, and versatility. Modern repeat-blooming cultivars deliver continuous color from late spring through the first hard frost, while old garden roses typically offer a single magnificent spring flush. Hardy shrub roses such as the Knock Out® and Canadian Explorer series tolerate Zone 3–4 winters without protection. With correct siting (6+ hours of sun, good air circulation), disease- resistant varieties thrive with moderate maintenance.

Lyon County, Kansas is in USDA Zone 6b. 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 629 feet, Lyon County receives approximately 24 inches of rainfall annually with predominantly loam soil. Summer highs average 88°F, providing good warmth for Roses during the growing season.

Perennial Blooms in Multi-season Pollinator-friendly Good for cutting Fragrant
Lyon County, KS (Zone 6b) Moderate season
196 days
Last Spring Frost April 12
196 growing days
First Fall Frost October 25

Lyon County Soil Profile

Soil Type

Loam

Soil pH

6.7-7.3

Drainage

Well Drained

Roses Planting Risk Windows

Early Start (70% safe) ✓ Fits season (0 days to spare)
Start indoors: Jan 25 Transplant: Apr 12 🌸 Bloom: Jun 21 – Oct 18
Recommended (50%) ✓ Fits season (0 days to spare)
Start indoors: Feb 1 Transplant: Apr 19 🌸 Bloom: Jun 28 – Oct 25
Safe Start (90%) ✓ Fits season (5 days to spare)
Start indoors: Feb 14 Transplant: May 2 🌸 Bloom: Jul 11 – Nov 7

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 Lyon County

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

Soil pH

Your soil pH (6.7–7.3) is more alkaline than Roses prefers (6.0–6.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

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

How to Plant Roses

1.5"
Planting Depth
36"
Between Plants
48"
Between Rows

Roses Water Budget

Plant needs
1.0″/week
Rainfall provides
0.5″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,017 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Roses

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

Month Roses Needs Rainfall You Supplement Action
Jan 0.7" 0" ❄️ Dormant
Feb 0.7" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 4.3" 2.7" 1.6" 💧 Light watering
May 4.3" 3.2" 1.1" 💧 Light watering
Jun 4.3" 4.4" 0" ✅ Rainfall sufficient
Jul 4.3" 2.8" 1.5" 💧 Light watering
Aug 4.3" 2.8" 1.5" 💧 Light watering
Sep 4.3" 2.3" 2" 💧 Light watering
Oct 4.3" 1.7" 2.6" 🚿 Regular watering
Nov 0.8" 0" ❄️ Dormant
Dec 0.5" 0" ❄️ Dormant

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

Roses 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.

Roses needs ~2,160 GDD — county provides 3,136 GDD Excellent fit

Roses Planting Timeline — Lyon County, KS

Roses Planting Calendar

Activity When Date Range
Start Indoors February 1 Feb 1 – Feb 15
Transplant Outdoors April 19 Apr 19 – May 3
Bloom June 28 Jun 28 – Oct 25

Plant 1.5" deep · 36" apart · Rows 48" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

90–180 days

🧪 Soil pH

Needs 6–6.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

196 days in Lyon County

Growing Tips for Roses in Lyon County

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

Lyon County receives only 24" of rain annually. Roses needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Plant bare-root roses in early spring as soon as soil is workable, or set container-grown plants from spring through early fall. Dig a wide, deep hole; amend with compost and a handful of bone meal. Set the graft union 1–2 inches below soil level in Zones 3–6 for winter protection, at soil level in Zones 7+. Water deeply twice weekly until established. Fertilize with a balanced rose food every 4–6 weeks during the growing season. Prune hybrid teas and grandifloras to outward-facing buds in early spring when forsythia blooms. Deadhead to encourage repeat bloom. Fall planting (Zones 5+) can improve establishment in subsequent years. Year 2+ plants deliver the fullest bloom display.

Companion Planting

Good Companions

Avoid Planting Near

  • Fennel
  • Brassicas

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Roses in Lyon County, KS?

Lyon County is in Zone 6b with an average last frost of April 12. Plan your Roses planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lyon County, KS?

Lyon County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 12 and first fall frost is October 25.

When should I plant Roses in Lyon County, KS?

In Lyon County, KS, plant Roses 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 Lyon County, KS for Roses?

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

Can Roses grow in Lyon County's climate?

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

🌱

Your Lyon County Garden Planner — Free

A 22-page printable planner built for Lyon 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 Lyon 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.