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When to plant Dianthus in Barton County County,

Spring Dianthus in Barton County County goes in March 23–April 13, once nighttime temps stop dipping near freezing.

When to Plant Dianthus in Barton County, KS

Barton County, Kansas Zone 6b June

Your June game plan for Barton County, Kansas

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

Avg. last frost April 20
Avg. first frost October 16
Soil temp (4") 72°F
Watering Low
Pest pressure High
Daylight 14.7 hrs
  1. Sow dianthus in trays indoors

    Starting these indoors now means sturdy transplants ready the moment your soil warms up.

  2. Pick dianthus

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

Get ahead of July
  • First harvests: dianthus

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China pinks (Dianthus chinensis) are a reliable cool-season annual offering fringed blooms with a spicy-sweet clove fragrance. They perform best in the cool temperatures of spring and fall, providing vivid color in beds and borders when summer annuals haven't kicked in yet. In warmer zones they are grown as fall–winter–spring annuals. The compact mounding habit and clean foliage make them excellent edging and container plants.

Barton County, Kansas is in USDA Zone 6b. The average last spring frost is April 20 and the first fall frost is October 16, giving you a growing season of approximately 179 days.

At an elevation of 638 feet, Barton County receives approximately 25.9 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Dianthus during the growing season.

Annual Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Barton County, KS (Zone 6b) Moderate season
179 days
Last Spring Frost April 20
179 growing days
First Fall Frost October 16
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Barton County Soil Profile

Soil Type

Loam

Soil pH

6.5-7.3

Drainage

Well Drained

Dianthus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (60 days to spare)
Start indoors: Feb 17 Transplant: Mar 24 🌸 Bloom: May 12 – Aug 11
Recommended (50%) ✓ Fits season (60 days to spare)
Start indoors: Feb 23 Transplant: Mar 30 🌸 Bloom: May 18 – Aug 17
Safe Start (90%) ✓ Fits season (60 days to spare)
Start indoors: Mar 8 Transplant: Apr 12 🌸 Bloom: May 31 – Aug 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 Barton County

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

Soil pH

Your soil pH (6.5–7.3) is within Dianthus's preferred range (6.0–7.5).

Soil Texture

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

Organic Matter

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

How to Plant Dianthus

0.1"
Planting Depth
8"
Between Plants
10"
Between Rows

Succession Planting Dianthus

3
successive plantings in your 179-day season

Sow every 6.9 weeks. Last sowing by Jul 28 to harvest before frost.

Dianthus Water Budget

Plant needs
0.5″/week
Rainfall provides
0.6″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Dianthus

Dianthus 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 Dianthus Needs Rainfall You Supplement Action
Jan 0.7" 0" ❄️ Dormant
Feb 0.8" 0" ❄️ Dormant
Mar 1.5" 0" ❄️ Dormant
Apr 2.2" 2.7" 0" ✅ Rainfall sufficient
May 2.2" 4.3" 0" ✅ Rainfall sufficient
Jun 2.2" 3.9" 0" ✅ Rainfall sufficient
Jul 2.2" 3.1" 0" ✅ Rainfall sufficient
Aug 2.2" 3" 0" ✅ Rainfall sufficient
Sep 2.2" 2.8" 0" ✅ Rainfall sufficient
Oct 2.2" 1.6" 0.6" 💧 Light watering
Nov 0.9" 0" ❄️ Dormant
Dec 0.7" 0" ❄️ Dormant

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

Dianthus 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.

Dianthus needs ~1,225 GDD — county provides 3,132 GDD Excellent fit

Dianthus Planting Timeline — Barton County, KS

Dianthus Planting Calendar

Activity When Date Range
Start Indoors February 23 Feb 23 – Mar 9
Transplant Outdoors March 30 Mar 30 – Apr 13
Direct Sow March 23 Mar 23 – Apr 13
Bloom May 18 May 18 – Aug 17

Plant 0.1" deep · 8" apart · Rows 10" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 6b

📆 Growing Season

179 days in Barton County

Growing Tips for Dianthus in Barton County

Direct sow Dianthus outdoors after April 20 in Barton County when soil has warmed and frost danger has passed.

General growing tips

Start seeds indoors 8–10 weeks before last frost for spring transplants, or direct-sow in early spring as soon as soil can be worked — seeds tolerate light frost. Can also be direct-sown in late summer for fall bloom. Plant in full sun with excellent drainage; poorly drained soil causes crown rot. Deadhead regularly to extend bloom. In zones 8–10, plant as a fall annual for winter– spring color; plants decline in summer heat.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Dianthus in Barton County, KS?

Barton County is in Zone 6b with an average last frost of April 20. Plan your Dianthus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Barton County, KS?

Barton County, Kansas is in USDA Hardiness Zone 6b. The average last spring frost is April 20 and first fall frost is October 16.

When should I plant Dianthus in Barton County, ?

In Barton County, , plant Dianthus after the last frost (around April 20) and before the first frost (around October 16). Best results when soil holds above 50°F.

What growing zone is Barton County, for Dianthus?

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

Can Dianthus grow in Barton County's climate?

Yes — Dianthus grows well in Barton County's temperate climate. Barton County averages a 179-day frost-free season, with last frost around April 20 and first frost around October 16.

🌱

Your Barton County Garden Planner — Free

A 22-page printable planner built for Barton 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 Barton 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.