When to Plant Stevia in Richland Parish, LA
Your May planting checklist for Richland Parish, Louisiana
Welcome to May in Zone 8b. These are the moves that will have the biggest impact on your growing season.
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Bring in the stevia
This is the payoff month. Bring a basket, bring a friend, and get into the beds.
Before June arrives, get these ready
- First harvests: stevia
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.
Richland Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 14, giving you a growing season of approximately 250 days.
At an elevation of 341 feet, Richland Parish receives approximately 59.8 inches of rainfall annually with predominantly loam soil. Summer highs average 95°F, so Stevia may need afternoon shade and extra watering during peak heat. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Stevia root diseases.
Richland Parish Soil Profile
Soil Type
Loam
Soil pH
6.2-7
Drainage
Well Drained
Plant 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 Richland Parish
How your county's soil matches Stevia's growing requirements.
Soil pH
Your soil pH (6.2–7.0) overlaps with Stevia's range (6.5–7.5), though not a perfect match.
Soil Texture
The loam soil in Richland Parish is excellent for Stevia — good drainage, moisture retention, and nutrient holding capacity.
Drainage
Drainage is adequate for Stevia.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Stevia.
How to Plant Stevia
Succession Planting Stevia
Sow every 6.9 weeks. Last sowing by Aug 16 to harvest before frost.
Plant Water Budget
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 | — | 5.6" | 0" | ❄️ Dormant |
| Feb | — | 4.3" | 0" | ❄️ Dormant |
| Mar | 2.2" | 6.2" | 0" | ✅ Rainfall sufficient |
| Apr | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| May | 2.2" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 2.2" | 5.2" | 0" | ✅ Rainfall sufficient |
| Jul | 2.2" | 6.5" | 0" | ✅ Rainfall sufficient |
| Aug | 2.2" | 6.2" | 0" | ✅ Rainfall sufficient |
| Sep | 2.2" | 5.1" | 0" | ✅ Rainfall sufficient |
| Oct | 2.2" | 3.6" | 0" | ✅ Rainfall sufficient |
| Nov | 2.2" | 4.2" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.4" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Richland Parish). 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 Planting Timeline — Richland Parish, LA
Stevia Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 19 | Jan 19 – Feb 2 |
| Transplant Outdoors | March 23 | Mar 23 – Apr 6 |
| Direct Sow | March 16 | Mar 16 – Apr 6 |
| Harvest | May 25 | May 25 – Aug 3 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| 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: acceptable
🗺️ USDA Zone
Zone 8b
📆 Growing Season
250 days in Richland Parish
Growing Tips for Stevia in Richland Parish
Direct sow Stevia outdoors after March 09 in Richland Parish when soil has warmed and frost danger has passed.
Common pests for Stevia in this region include aphids and slugs. Use row covers early in the season and inspect plants weekly.
With 60" of annual rainfall in Richland Parish, 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 →
Stevia in Other Locations
Frequently Asked Questions
When should I plant Stevia in Richland Parish, LA?
Richland Parish is in Zone 8b with an average last frost of March 9. Plan your Stevia planting based on this frost date — see the calendar above for exact timing.
What planting zone is Richland Parish, LA?
Richland Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 14.
Your Richland Parish Garden Planner — Free
A 24-page printable planner built for Richland Parish (Zone 8b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.