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When to Plant Dianthus in Cumberland County, VA

Cumberland County, Virginia Zone 7a June

June in the garden — Cumberland County, Virginia

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

Avg. last frost April 9
Avg. first frost November 1
Soil temp (4") 76°F
Watering Low
Pest pressure High
Daylight 14.6 hrs
  1. Start dianthus under lights

    Your window is short. These crops want several weeks of indoor growth before they go outside.

  2. Start harvesting dianthus

    If you can't use it all right away, check the food-preservation section of your planner.

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.

Cumberland County, Virginia is in USDA Zone 7a. The average last spring frost is April 9 and the first fall frost is November 1, giving you a growing season of approximately 206 days.

At an elevation of 471 feet, Cumberland County receives approximately 53.2 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Dianthus during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Dianthus root diseases.

Annual Blooms in Spring Pollinator-friendly Deer-resistant Good for cutting Fragrant
Cumberland County, VA (Zone 7a) Long season
206 days
Last Spring Frost April 9
206 growing days
First Fall Frost November 1
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Cumberland County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-7

Drainage

Well Drained

Dianthus Planting Risk Windows

Early Start (70% safe) ✓ Fits season (86 days to spare)
Start indoors: Feb 6 Transplant: Mar 13 🌸 Bloom: May 1 – Jul 31
Recommended (50%) ✓ Fits season (87 days to spare)
Start indoors: Feb 12 Transplant: Mar 19 🌸 Bloom: May 7 – Aug 6
Safe Start (90%) ✓ Fits season (87 days to spare)
Start indoors: Feb 25 Transplant: Apr 1 🌸 Bloom: May 20 – Aug 19

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 Cumberland County

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

Soil pH

Your soil pH (5.7–7.0) overlaps with Dianthus's range (6.0–7.5), though not a perfect match.

Soil Texture

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

Organic Matter

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

How to Plant Dianthus

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

Succession Planting Dianthus

4
successive plantings in your 206-day season

Sow every 6.9 weeks. Last sowing by Aug 13 to harvest before frost.

Dianthus Water Budget

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

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 4.8" 0" ❄️ Dormant
Feb 4" 0" ❄️ Dormant
Mar 5.3" 0" ❄️ Dormant
Apr 2.2" 4.1" 0" ✅ Rainfall sufficient
May 2.2" 4.5" 0" ✅ Rainfall sufficient
Jun 2.2" 4.1" 0" ✅ Rainfall sufficient
Jul 2.2" 5.8" 0" ✅ Rainfall sufficient
Aug 2.2" 5.6" 0" ✅ Rainfall sufficient
Sep 2.2" 3.9" 0" ✅ Rainfall sufficient
Oct 2.2" 3.4" 0" ✅ Rainfall sufficient
Nov 2.2" 4" 0" ✅ Rainfall sufficient
Dec 3.7" 0" ❄️ Dormant

Water needs are for active growing months only (Apr–Nov in Cumberland 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 ~1,382 GDD — county provides 4,068 GDD Excellent fit

Dianthus Planting Timeline — Cumberland County, VA

Dianthus Planting Calendar

Activity When Date Range
Start Indoors February 12 Feb 12 – Feb 26
Transplant Outdoors March 19 Mar 19 – Apr 2
Direct Sow March 5 Mar 5 – Mar 26
Bloom May 7 May 7 – Aug 6

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

Month-by-Month Timeline

MonthActivities
January
February Start Indoors
March Transplant Outdoors Direct Sow
April Transplant Outdoors
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: acceptable

🗺️ USDA Zone

Zone 7a

📆 Growing Season

206 days in Cumberland County

Growing Tips for Dianthus in Cumberland County

Direct sow Dianthus outdoors after April 09 in Cumberland 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 Cumberland County, VA?

Cumberland County is in Zone 7a with an average last frost of April 9. Plan your Dianthus planting based on this frost date — see the calendar above for exact timing.

What planting zone is Cumberland County, VA?

Cumberland County, Virginia is in USDA Hardiness Zone 7a. The average last spring frost is April 9 and first fall frost is November 1.

🌱

Your Cumberland County Garden Planner — Free

A 22-page printable planner built for Cumberland County (Zone 7a). 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 Cumberland County, VA. 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.