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When to Plant Coreopsis in Halifax County, VA

Halifax County, Virginia Zone 7b June

June in Halifax County, Virginia — your action list

June is a pivotal month for Halifax County, Virginia gardens. Focus on these tasks first and you'll set up the rest of the season for success.

Avg. last frost April 16
Avg. first frost October 25
Soil temp (4") 77°F
Watering Moderate
Pest pressure High
Daylight 14.5 hrs
  1. Start coreopsis indoors

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

  2. Pick coreopsis

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

July will be here before you know it — start on
  • First harvests: coreopsis

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Coreopsis (Tickseed) is a cheerful, long-blooming native perennial that produces a continuous flush of bright yellow, gold, or bi-colored daisy-like flowers from early summer well into fall. One of the most reliable cut-and-come-again bloomers in the perennial garden, it thrives in hot, dry, sunny conditions and poor soil where many competitors struggle. An invaluable nectar source for native bees and butterflies, and a butterfly host plant for several species.

Halifax County, Virginia is in USDA Zone 7b. The average last spring frost is April 16 and the first fall frost is October 25, giving you a growing season of approximately 192 days.

At an elevation of 346 feet, Halifax County receives approximately 40.1 inches of rainfall annually with predominantly silt loam soil. Summer highs average 93°F, providing good warmth for Coreopsis during the growing season.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting
Halifax County, VA (Zone 7b) Moderate season
192 days
Last Spring Frost April 16
192 growing days
First Fall Frost October 25

Halifax County Soil Profile

Soil Type

Silt Loam

Soil pH

5.7-6.9

Drainage

Well Drained

Coreopsis Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Start indoors: Feb 4 Transplant: Apr 15 🌸 Bloom: Jun 17 – Nov 4
Recommended (50%) ✗ May not fit
Start indoors: Feb 12 Transplant: Apr 23 🌸 Bloom: Jun 25 – Nov 12
Safe Start (90%) ✗ May not fit
Start indoors: Feb 22 Transplant: May 3 🌸 Bloom: Jul 5 – Nov 22

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 Halifax County

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

Soil pH

Your soil pH (5.7–6.9) is within Coreopsis's preferred range (5.5–7.5).

Soil Texture

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

Organic Matter

Organic matter is moderate (2.5%). Annual compost additions will help Coreopsis.

How to Plant Coreopsis

0.1"
Planting Depth
18"
Between Plants
24"
Between Rows

Succession Planting Coreopsis

3
successive plantings in your 192-day season

Sow every 6.9 weeks. Last sowing by Aug 06 to harvest before frost.

Coreopsis Water Budget

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

Monthly Watering Guide for Coreopsis

Coreopsis 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 Coreopsis Needs Rainfall You Supplement Action
Jan 3.8" 0" ❄️ Dormant
Feb 3.2" 0" ❄️ Dormant
Mar 4" 0" ❄️ Dormant
Apr 2.2" 2.7" 0" ✅ Rainfall sufficient
May 2.2" 3.1" 0" ✅ Rainfall sufficient
Jun 2.2" 3.3" 0" ✅ Rainfall sufficient
Jul 2.2" 3.8" 0" ✅ Rainfall sufficient
Aug 2.2" 4.4" 0" ✅ Rainfall sufficient
Sep 2.2" 2.8" 0" ✅ Rainfall sufficient
Oct 2.2" 2.3" 0" ✅ Rainfall sufficient
Nov 3.1" 0" ❄️ Dormant
Dec 3.7" 0" ❄️ Dormant

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

Coreopsis 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.

Coreopsis needs ~1,382 GDD — county provides 3,792 GDD Excellent fit

Coreopsis Planting Timeline — Halifax County, VA

Coreopsis Planting Calendar

Activity When Date Range
Start Indoors February 12 Feb 12 – Feb 26
Transplant Outdoors April 23 Apr 23 – May 7
Direct Sow April 16 Apr 16 – May 7
Bloom June 25 Jun 25 – Nov 12

Plant 0.1" deep · 18" apart · Rows 24" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.5"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 7b

📆 Growing Season

192 days in Halifax County

Growing Tips for Coreopsis in Halifax County

Direct sow Coreopsis outdoors after April 16 in Halifax County when soil has warmed and frost danger has passed.

Common pests for Coreopsis in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 8–10 weeks before last frost or direct sow after last frost. Seeds germinate easily without stratification. Thrives in poor to average, well-drained soil — rich soil promotes foliage over flowers. Drought tolerant once established; overwatering is the most common mistake. Deadhead spent blooms to maintain continuous flowering through the season. Shear plants by one-third in midsummer for a fresh flush of late-season blooms. Year 2+ plants bloom most heavily. Divide every 2–3 years in early spring to rejuvenate crowded clumps.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Coreopsis in Halifax County, VA?

Halifax County is in Zone 7b with an average last frost of April 16. Plan your Coreopsis planting based on this frost date — see the calendar above for exact timing.

What planting zone is Halifax County, VA?

Halifax County, Virginia is in USDA Hardiness Zone 7b. The average last spring frost is April 16 and first fall frost is October 25.

🌱

Your Halifax County Garden Planner — Free

A 22-page printable planner built for Halifax County (Zone 7b). 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 Halifax 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.