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When to plant Stevia in Crestview, FL

Plant Stevia in Crestview from March 21 to April 11 in spring. Crestview sits in USDA Zone 9a, with last frost around March 14 and first frost on November 16.

When to Plant Stevia in Crestview, FL

Okaloosa County, Florida Zone 9a August

Okaloosa County, Florida gardeners: here's your August plan

A quick August briefing for Okaloosa County, Florida gardeners — what's urgent, what's next, and what can wait.

Avg. last frost March 14
Avg. first frost November 16
Soil temp (4") 90°F
Watering Low
Pest pressure High
Daylight 13.1 hrs
  1. Harvest stevia as they ripen

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

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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.

Crestview, Florida is in USDA Zone 9a. The average last spring frost is March 14 and the first fall frost is November 16, giving you a growing season of approximately 247 days.

At an elevation of 396 feet, Okaloosa County receives approximately 48.4 inches of rainfall annually with predominantly sand soil. Summer highs average 92°F, providing good warmth for Stevia during the growing season. Sandy soil warms quickly in spring — great for early planting — but Stevia will need more frequent watering and organic matter to retain nutrients.

Crestview, FL (Zone 9a) Long season
247 days
Last Spring Frost March 14
247 growing days
First Fall Frost November 16

Crestview Soil Profile

Soil Type

Sand

Soil pH

4.9-5.8

Drainage

Well Drained

Stevia Planting Risk Windows

Early Start (70% safe) ✓ Fits season (110 days to spare)
Start indoors: Jan 23 Transplant: Mar 13 🍅 Harvest: May 15 – Jul 24
Recommended (50%) ✓ Fits season (107 days to spare)
Start indoors: Jan 31 Transplant: Mar 21 🍅 Harvest: May 23 – Aug 1
Safe Start (90%) ✓ Fits season (106 days to spare)
Start indoors: Feb 24 Transplant: Apr 14 🍅 Harvest: Jun 16 – Aug 25

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 Crestview

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

Soil pH

Your soil pH (4.9–5.8) is more acidic than Stevia prefers (6.5–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Okaloosa 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 (1.6%). 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

4
successive plantings in your 247-day season

Sow every 6.9 weeks. Last sowing by Aug 18 to harvest before frost.

Stevia Water Budget

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

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

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 2.1" 0" ❄️ Dormant
Feb 2.4" 0" ❄️ Dormant
Mar 2.2" 2.7" 0" ✅ Rainfall sufficient
Apr 2.2" 2.3" 0" ✅ Rainfall sufficient
May 2.2" 3.5" 0" ✅ Rainfall sufficient
Jun 2.2" 6.1" 0" ✅ Rainfall sufficient
Jul 2.2" 8.5" 0" ✅ Rainfall sufficient
Aug 2.2" 6.3" 0" ✅ Rainfall sufficient
Sep 2.2" 6.4" 0" ✅ Rainfall sufficient
Oct 2.2" 4" 0" ✅ Rainfall sufficient
Nov 2.2" 2.3" 0" ✅ Rainfall sufficient
Dec 1.8" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Okaloosa 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 ~1,425 GDD — county provides 4,693 GDD Excellent fit

Stevia Planting Timeline — Crestview, FL

Stevia Planting Calendar

Activity When Date Range
Start Indoors January 31 Jan 31 – Feb 14
Transplant Outdoors March 21 Mar 21 – Apr 4
Direct Sow March 21 Mar 21 – Apr 11
Harvest May 23 May 23 – Aug 1

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

Month-by-Month Timeline

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

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 9a

📆 Growing Season

247 days in Okaloosa County

Growing Tips for Stevia in Crestview

Direct sow Stevia outdoors after March 14 in Okaloosa County when soil has warmed and frost danger has passed.

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

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

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 →

When should I plant Stevia in Crestview, FL?

In Crestview, FL, plant Stevia after the last frost (around March 14) and before the first frost (around November 16). Best results when soil holds above 50°F.

What growing zone is Crestview, FL for Stevia?

Crestview sits in USDA Zone 9a. Stevia grows reliably in zones 8a through 11b, so it's a good fit here.

Can Stevia grow in Crestview's climate?

Yes — Stevia grows well in Crestview's temperate climate. Crestview averages a 247-day frost-free season, with last frost around March 14 and first frost around November 16.

🌱

Your Okaloosa County Garden Planner — Free

A 22-page printable planner built for Okaloosa 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.

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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 Okaloosa County, FL. Local conditions may vary. Last updated: August 2026.