Blog

When to plant Snapdragon in Greeley County, KS

Snapdragon planted in Greeley County between April 9 and April 30 matures in 100 days — well before the October 10 first frost.

When to Plant Snapdragon in Greeley County, KS

Greeley County, Kansas Zone 6a June

Greeley County, Kansas gardeners: here's your June plan

Welcome to June in Zone 6a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost April 30
Avg. first frost October 10
Soil temp (4") 69°F
Watering High
Pest pressure High
Daylight 14.7 hrs
July prep starts now
  • Starting indoors: snapdragon
  • First harvests: snapdragon

Instant PDF download. No spam, unsubscribe any time.

Snapdragons (Antirrhinum majus) are classic cool-season annuals whose upright spikes of dragon-lipped flowers are among spring's most dramatic displays. Tolerating light frosts, they bloom from early spring until summer heat shuts them down — then often revive in fall. In zones 9-11 they are grown as fall-planted winter annuals and may re-seed to naturalize.

Greeley County, Kansas is in USDA Zone 6a. The average last spring frost is April 30 and the first fall frost is October 10, giving you a growing season of approximately 163 days.

At an elevation of 963 feet, Greeley County receives approximately 21.1 inches of rainfall annually with predominantly loam soil. Summer highs average 87°F, providing good warmth for Snapdragon during the growing season.

Annual Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Greeley County, KS (Zone 6a) Moderate season
163 days
Last Spring Frost April 30
163 growing days
First Fall Frost October 10

Greeley County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.2

Drainage

Well Drained

Snapdragon Planting Risk Windows

Early Start (70% safe) ✓ Fits season (23 days to spare)
Start indoors: Feb 15 Transplant: Apr 26 🌸 Bloom: Jul 5 – Sep 13
Recommended (50%) ✓ Fits season (23 days to spare)
Start indoors: Feb 19 Transplant: Apr 30 🌸 Bloom: Jul 9 – Sep 17
Safe Start (90%) ✓ Fits season (24 days to spare)
Start indoors: Mar 4 Transplant: May 13 🌸 Bloom: Jul 22 – Sep 30

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 Greeley County

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

Soil pH

Your soil pH (6.2–7.2) overlaps with Snapdragon's range (6.2–7.0), though not a perfect match.

Soil Texture

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

Drainage

Drainage is adequate for Snapdragon.

Organic Matter

Organic matter is moderate (3.4%). Annual compost additions will help Snapdragon.

How to Plant Snapdragon

9"
Between Plants
12"
Between Rows

Succession Planting Snapdragon

2
successive plantings in your 163-day season

Sow every 8 weeks. Last sowing by Jul 02 to harvest before frost.

Snapdragon Water Budget

Plant needs
1.0″/week
Rainfall provides
0.5″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 1,317 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Snapdragon

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

Month Snapdragon Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 1.4" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 4.3" 2" 2.3" 🚿 Regular watering
May 4.3" 2.7" 1.6" 💧 Light watering
Jun 4.3" 1.4" 2.9" 🚿 Regular watering
Jul 4.3" 1.6" 2.7" 🚿 Regular watering
Aug 4.3" 2" 2.3" 🚿 Regular watering
Sep 4.3" 2" 2.3" 🚿 Regular watering
Oct 4.3" 1.7" 2.6" 🚿 Regular watering
Nov 1.7" 0" ❄️ Dormant
Dec 1.1" 0" ❄️ Dormant

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

Snapdragon 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.

Snapdragon needs ~1,296 GDD — county provides 2,485 GDD Excellent fit

Snapdragon Planting Timeline — Greeley County, KS

Snapdragon Planting Calendar

Activity When Date Range
Start Indoors February 19 Feb 19 – Mar 5
Transplant Outdoors April 30 Apr 30 – May 14
Direct Sow April 9 Apr 9 – Apr 30
Bloom July 9 Jul 9 – Sep 17

· 9" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 2-3 times/week

📅 Days to Maturity

70–100 days

🧪 Soil pH

Needs 6.2–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 6a

📆 Growing Season

163 days in Greeley County

Growing Tips for Snapdragon in Greeley County

Direct sow Snapdragon outdoors after April 30 in Greeley County when soil has warmed and frost danger has passed.

Greeley County receives only 21" of rain annually. Snapdragon needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

Start indoors 10-12 weeks before last frost; seeds need light to germinate — press into moist medium and do not cover. Transplant after hardening off, even if light frosts remain. Pinch seedlings once to encourage branching. Deadhead to prolong blooming. In zones 8-11, sow in fall for a winter-to-spring show. Tall varieties (24-36") make excellent cut flowers.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Snapdragon in Greeley County, KS?

Greeley County is in Zone 6a with an average last frost of April 30. Plan your Snapdragon planting based on this frost date — see the calendar above for exact timing.

What planting zone is Greeley County, KS?

Greeley County, Kansas is in USDA Hardiness Zone 6a. The average last spring frost is April 30 and first fall frost is October 10.

When should I plant Snapdragon in Greeley County, KS?

In Greeley County, KS, plant Snapdragon after the last frost (around April 30) and before the first frost (around October 10). Best results when soil holds above 50°F.

What growing zone is Greeley County, KS for Snapdragon?

Greeley County sits in USDA Zone 6a. Snapdragon grows reliably in zones 2a through 11b, so it's a good fit here.

Can Snapdragon grow in Greeley County's climate?

Yes — Snapdragon grows well in Greeley County's temperate climate. Greeley County averages a 163-day frost-free season, with last frost around April 30 and first frost around October 10.

🌱

Your Greeley County Garden Planner — Free

A 22-page printable planner built for Greeley 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.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Greeley 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.