When to plant Coreopsis in Wilkinson County, MS
Plant Coreopsis in Wilkinson County from February 17 to March 10 in spring. Wilkinson County sits in USDA Zone 9a, with last frost around March 3 and first frost on November 23.
When to Plant Coreopsis in Wilkinson County, MS
Wilkinson County, Mississippi gardeners: here's your July plan
Each item below is timed to Wilkinson County, Mississippi's frost dates and soil temperatures. Skip nothing, stress about nothing.
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Collect coreopsis at their peak
Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.
Get ahead of August
- First harvests: coreopsis
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.
Wilkinson County, Mississippi is in USDA Zone 9a. The average last spring frost is March 3 and the first fall frost is November 23, giving you a growing season of approximately 265 days.
At an elevation of 379 feet, Wilkinson County receives approximately 54.2 inches of rainfall annually with predominantly clay loam soil. Summer highs average 94°F, providing good warmth for Coreopsis during the growing season. Clay soil retains moisture well for Coreopsis, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Coreopsis root diseases.
Wilkinson County Soil Profile
Soil Type
Clay Loam
Soil pH
5.3-6.3
Drainage
Well Drained
Coreopsis Planting Risk Windows
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 Wilkinson County
How your county's soil matches Coreopsis's growing requirements.
Soil pH
Your soil pH (5.3–6.3) overlaps with Coreopsis's range (5.5–7.5), though not a perfect match.
Soil Texture
The clay loam soil in Wilkinson County is excellent for Coreopsis — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.6%). Annual compost additions will help Coreopsis.
How to Plant Coreopsis
Succession Planting Coreopsis
Sow every 6.9 weeks. Last sowing by Sep 04 to harvest before frost.
Coreopsis Water Budget
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 | — | 4" | 0" | ❄️ Dormant |
| Feb | — | 4.4" | 0" | ❄️ Dormant |
| Mar | 2.2" | 5.4" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 3.7" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.7" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 5.9" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 5.7" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.8" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4.5" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Wilkinson 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 Planting Timeline — Wilkinson County, MS
Coreopsis Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 6 | Jan 6 – Jan 20 |
| Transplant Outdoors | February 17 | Feb 17 – Mar 3 |
| Direct Sow | February 17 | Feb 17 – Mar 10 |
| Bloom | April 14 | Apr 14 – Sep 15 |
Plant 0.1" deep · 18" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Transplant Outdoors Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | Bloom |
| May | Bloom |
| June | Bloom |
| July | Bloom |
| August | Bloom |
| September | Bloom |
| October | — |
| November | — |
| 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: acceptable
🗺️ USDA Zone
Zone 9a
📆 Growing Season
265 days in Wilkinson County
Growing Tips for Coreopsis in Wilkinson County
Direct sow Coreopsis outdoors after March 03 in Wilkinson County when soil has warmed and frost danger has passed.
With Wilkinson County's clay soil (32% clay), work in 3-4 inches of compost before planting Coreopsis. Avoid tilling when soil is wet to prevent compaction.
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 →
Coreopsis in Other Locations
Frequently Asked Questions
When should I plant Coreopsis in Wilkinson County, MS?
Wilkinson County is in Zone 9a with an average last frost of March 3. Plan your Coreopsis planting based on this frost date — see the calendar above for exact timing.
What planting zone is Wilkinson County, MS?
Wilkinson County, Mississippi is in USDA Hardiness Zone 9a. The average last spring frost is March 3 and first fall frost is November 23.
When should I plant Coreopsis in Wilkinson County, MS?
In Wilkinson County, MS, plant Coreopsis after the last frost (around March 3) and before the first frost (around November 23). Best results when soil holds above 50°F.
What growing zone is Wilkinson County, MS for Coreopsis?
Wilkinson County sits in USDA Zone 9a. Coreopsis grows reliably in zones 3a through 9b, so it's a good fit here.
Can Coreopsis grow in Wilkinson County's climate?
Yes — Coreopsis grows well in Wilkinson County's temperate climate. Wilkinson County averages a 265-day frost-free season, with last frost around March 3 and first frost around November 23.
Your Wilkinson County Garden Planner — Free
A 22-page printable planner built for Wilkinson County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.