Blog

When to plant Coreopsis in Lake County County,

Lake County County's climate puts the Coreopsis spring window between January 22 and February 12. aim for a steady week of warm soil before planting.

When to Plant Coreopsis in Lake County, FL

Lake County, Florida Zone 9b June

What to do in June

We've pulled the most time-sensitive tasks for Lake County, Florida this June and put them front and centre. Tackle them in order.

Avg. last frost February 12
Avg. first frost December 11
Soil temp (4") 86°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Bring in the coreopsis

    Morning harvests are best — cooler temperatures mean crisper produce and longer fridge life.

Looking ahead to July
  • First harvests: coreopsis

Instant PDF download. No spam, unsubscribe any time.

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.

Lake County, Florida is in USDA Zone 9b. The average last spring frost is February 12 and the first fall frost is December 11, giving you a growing season of approximately 302 days.

At an elevation of 130 feet, Lake County receives approximately 56.1 inches of rainfall annually with predominantly sand soil. Summer highs average 97°F, so Coreopsis may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Coreopsis will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Coreopsis root diseases.

Perennial Blooms in Summer Pollinator-friendly Deer-resistant Good for cutting
Lake County, FL (Zone 9b) Year-round
302 days
Last Spring Frost February 12
302 growing days
First Fall Frost December 11
Share this guide:

Lake County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.7

Drainage

Well Drained

Coreopsis Planting Risk Windows

Early Start (70% safe) ✓ Fits season (112 days to spare)
Start indoors: Dec 1 Transplant: Jan 12 🌸 Bloom: Mar 9 – Aug 10
Recommended (50%) ✓ Fits season (106 days to spare)
Start indoors: Dec 18 Transplant: Jan 29 🌸 Bloom: Mar 26 – Aug 27
Safe Start (90%) ✓ Fits season (99 days to spare)
Start indoors: Jan 9 Transplant: Feb 20 🌸 Bloom: Apr 17 – Sep 18

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 Lake County

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

Soil pH

Your soil pH (5.1–5.7) is more acidic than Coreopsis prefers (5.5–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Lake County warms quickly in spring but drains fast. Coreopsis will need more frequent watering and regular compost additions to retain nutrients.

Drainage

Drainage is adequate for Coreopsis.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Coreopsis.

How to Plant Coreopsis

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

Succession Planting Coreopsis

6
successive plantings in your 302-day season

Sow every 6.9 weeks. Last sowing by Sep 22 to harvest before frost.

Coreopsis Water Budget

Plant needs
0.5″/week
Rainfall provides
0.8″/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 2.7" 0" ❄️ Dormant
Feb 2.2" 2.7" 0" ✅ Rainfall sufficient
Mar 2.2" 3.3" 0" ✅ Rainfall sufficient
Apr 2.2" 2.6" 0" ✅ Rainfall sufficient
May 2.2" 3.1" 0" ✅ Rainfall sufficient
Jun 2.2" 6.8" 0" ✅ Rainfall sufficient
Jul 2.2" 8.4" 0" ✅ Rainfall sufficient
Aug 2.2" 9" 0" ✅ Rainfall sufficient
Sep 2.2" 8.2" 0" ✅ Rainfall sufficient
Oct 2.2" 4.5" 0" ✅ Rainfall sufficient
Nov 2.2" 2.2" 0" ✅ Rainfall sufficient
Dec 2.2" 2.5" 0" ✅ Rainfall sufficient

Water needs are for active growing months only (Feb–Dec in Lake 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 ~1,592 GDD — county provides 6,893 GDD Excellent fit

Coreopsis Planting Timeline — Lake County, FL

Coreopsis Planting Calendar

Activity When Date Range
Start Indoors December 18 Dec 18 – Jan 1
Transplant Outdoors January 29 Jan 29 – Feb 12
Direct Sow January 22 Jan 22 – Feb 12
Bloom March 26 Mar 26 – Aug 27

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

Month-by-Month Timeline

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

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: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

302 days in Lake County

Growing Tips for Coreopsis in Lake County

Direct sow Coreopsis outdoors after February 12 in Lake County when soil has warmed and frost danger has passed.

Sandy soil in Lake County dries quickly — mulch Coreopsis with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 97°F in Lake County, provide afternoon shade for Coreopsis and water deeply in the morning.

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 Lake County, FL?

Lake County is in Zone 9b with an average last frost of February 12. Plan your Coreopsis planting based on this frost date — see the calendar above for exact timing.

What planting zone is Lake County, FL?

Lake County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is February 12 and first fall frost is December 11.

When should I plant Coreopsis in Lake County, ?

In Lake County, , plant Coreopsis after the last frost (around February 12) and before the first frost (around December 11). Best results when soil holds above 50°F.

What growing zone is Lake County, for Coreopsis?

Lake County sits in USDA Zone 9b. Coreopsis grows reliably in zones 3a through 9b, so it's a good fit here.

Can Coreopsis grow in Lake County's climate?

Yes — Coreopsis grows well in Lake County's temperate climate. Lake County averages a 303-day frost-free season, with last frost around February 12 and first frost around December 11.

🌱

Your Lake County Garden Planner — Free

A 22-page printable planner built for Lake County (Zone 9b). 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 Lake County, FL. 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.