Blog

When to Plant Stevia in Stone County, MS

Stone County, Mississippi Zone 9a May

May in the garden — Stone County, Mississippi

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

Avg. last frost March 2
Avg. first frost November 26
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
  1. Collect stevia at their peak

    If you can't use it all right away, check the food-preservation section of your planner.

To set up a strong June, finish these tasks
  • First harvests: stevia

Instant PDF download. No spam, unsubscribe any time.

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.

Stone County, Mississippi is in USDA Zone 9a. The average last spring frost is March 2 and the first fall frost is November 26, giving you a growing season of approximately 269 days.

At an elevation of 105 feet, Stone County receives approximately 57.5 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°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.

Stone County, MS (Zone 9a) Long season
269 days
Last Spring Frost March 2
269 growing days
First Fall Frost November 26
Share this guide:

Stone County Soil Profile

Soil Type

Sandy Loam

Soil pH

5-6.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (136 days to spare)
Start indoors: Jan 5 Transplant: Feb 23 🍅 Harvest: Apr 27 – Jul 6
Recommended (50%) ✓ Fits season (129 days to spare)
Start indoors: Jan 19 Transplant: Mar 9 🍅 Harvest: May 11 – Jul 20
Safe Start (90%) ✓ Fits season (128 days to spare)
Start indoors: Feb 8 Transplant: Mar 29 🍅 Harvest: May 31 – Aug 9

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 Stone County

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

Soil pH

Your soil pH (5.0–6.3) is more acidic than Stevia prefers (6.5–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Stone 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 (1.8%). 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

5
successive plantings in your 269-day season

Sow every 6.9 weeks. Last sowing by Aug 28 to harvest before frost.

Plant 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 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 4.8" 0" ❄️ Dormant
Feb 4.8" 0" ❄️ Dormant
Mar 2.2" 5.3" 0" ✅ Rainfall sufficient
Apr 2.2" 4.1" 0" ✅ Rainfall sufficient
May 2.2" 4" 0" ✅ Rainfall sufficient
Jun 2.2" 5.2" 0" ✅ Rainfall sufficient
Jul 2.2" 5.3" 0" ✅ Rainfall sufficient
Aug 2.2" 6.1" 0" ✅ Rainfall sufficient
Sep 2.2" 4.4" 0" ✅ Rainfall sufficient
Oct 2.2" 3.7" 0" ✅ Rainfall sufficient
Nov 2.2" 4.6" 0" ✅ Rainfall sufficient
Dec 5.2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Stone 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 ~1,650 GDD — county provides 5,918 GDD Excellent fit

Stevia Planting Timeline — Stone County, MS

Stevia Planting Calendar

Activity When Date Range
Start Indoors January 19 Jan 19 – Feb 2
Transplant Outdoors March 9 Mar 9 – Mar 23
Direct Sow March 9 Mar 9 – Mar 30
Harvest May 11 May 11 – Jul 20

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
May Harvest
June Harvest
July Harvest
August
September
October
November
December
Share this guide:

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

269 days in Stone County

Growing Tips for Stevia in Stone County

Direct sow Stevia outdoors after March 02 in Stone County when soil has warmed and frost danger has passed.

Sandy soil in Stone 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 96°F in Stone 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 58" of annual rainfall in Stone 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 Stone County, MS?

Stone County is in Zone 9a with an average last frost of March 2. Plan your Stevia planting based on this frost date — see the calendar above for exact timing.

What planting zone is Stone County, MS?

Stone County, Mississippi is in USDA Hardiness Zone 9a. The average last spring frost is March 2 and first fall frost is November 26.

🌱

Your Stone County Garden Planner — Free

A 24-page printable planner built for Stone 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.

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 Stone County, MS. 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.