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When to Plant Stevia in Lake County, FL

Lake County, Florida Zone 9b May

May in Lake County, Florida — your action list

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost February 12
Avg. first frost December 11
Soil temp (4") 75°F
Watering Moderate
Pest pressure High
Daylight 13.4 hrs
  1. Pick stevia

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

Get ahead of June
  • First harvests: stevia

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Stevia is a subtropical herb whose leaves contain natural sweeteners 200-300 times sweeter than sugar. It is grown as an annual in most climates.

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 Stevia may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Stevia will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Stevia root diseases.

Lake County, FL (Zone 9b) Year-round
302 days
Last Spring Frost February 12
302 growing days
First Fall Frost December 11
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Lake County Soil Profile

Soil Type

Sand

Soil pH

5.1-5.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (168 days to spare)
Start indoors: Dec 15 Transplant: Feb 2 🍅 Harvest: Apr 6 – Jun 15
Recommended (50%) ✓ Fits season (162 days to spare)
Start indoors: Jan 1 Transplant: Feb 19 🍅 Harvest: Apr 23 – Jul 2
Safe Start (90%) ✓ Fits season (155 days to spare)
Start indoors: Jan 23 Transplant: Mar 13 🍅 Harvest: May 15 – Jul 24

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 Stevia's growing requirements.

Soil pH

Your soil pH (5.1–5.7) is more acidic than Stevia prefers (6.5–7.5). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Stevia.

Organic Matter

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

How to Plant Stevia

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Succession Planting Stevia

6
successive plantings in your 302-day season

Sow every 6.9 weeks. Last sowing by Sep 12 to harvest before frost.

Plant 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 Stevia

Stevia 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 Stevia 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.

Stevia 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.

Stevia needs ~1,706 GDD — county provides 6,893 GDD Excellent fit

Stevia Planting Timeline — Lake County, FL

Stevia Planting Calendar

Activity When Date Range
Start Indoors January 1 Jan 1 – Jan 15
Transplant Outdoors February 19 Feb 19 – Mar 5
Direct Sow February 19 Feb 19 – Mar 12
Harvest April 23 Apr 23 – Jul 2

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Transplant Outdoors Direct Sow
March Transplant Outdoors Direct Sow
April Harvest
May Harvest
June Harvest
July Harvest
August
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

60–90 days

🧪 Soil pH

Needs 6.5–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9b

📆 Growing Season

302 days in Lake County

Growing Tips for Stevia in Lake County

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

Sandy soil in Lake County dries quickly — mulch Stevia 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 Stevia and water deeply in the morning.

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

With 56" of annual rainfall in Lake County, ensure good drainage for Stevia — excess moisture can promote root rot and fungal diseases.

General growing tips

Start seeds indoors under lights or buy transplants. Pinch flowers to encourage leaf production. Harvest leaves before flowering for maximum sweetness. Dry leaves for year-round use.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Stevia in Lake County, FL?

Lake County is in Zone 9b with an average last frost of February 12. Plan your Stevia 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.

🌱

Your Lake County Garden Planner — Free

A 24-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.

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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 Lake County, FL. Local conditions may vary. Last updated: May 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.