When to Plant Fennel in Tensas Parish, LA
This month in Tensas Parish, Louisiana
Each item below is timed to Tensas Parish, Louisiana's frost dates and soil temperatures. Skip nothing, stress about nothing.
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It's harvest week for fennel
The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.
Get ahead of June
- First harvests: fennel
Florence fennel is grown for its swollen bulb-like stem base, which has a mild anise flavor. It is crisp raw in salads and sweet when roasted or braised.
Tensas Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 9 and the first fall frost is November 12, giving you a growing season of approximately 248 days.
At an elevation of 409 feet, Tensas Parish receives approximately 61.5 inches of rainfall annually with predominantly loam soil. Summer highs average 90°F, providing good warmth for Fennel during the growing season. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fennel root diseases.
Tensas Parish Soil Profile
Soil Type
Loam
Soil pH
6.2-6.8
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 Tensas Parish
How your county's soil matches Fennel's growing requirements.
Soil pH
Your soil pH (6.2–6.8) is within Fennel's preferred range (5.5–7.0).
Soil Texture
The loam soil in Tensas Parish is excellent for Fennel — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.5%). Annual compost additions will help Fennel.
How to Plant Fennel
Succession Planting Fennel
Sow every 6.9 weeks. Last sowing by Aug 14 to harvest before frost.
Plant Water Budget
Monthly Watering Guide for Fennel
Fennel needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.
| Month | Fennel Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 5.6" | 0" | ❄️ Dormant |
| Feb | — | 4.1" | 0" | ❄️ Dormant |
| Mar | 2.6" | 6.2" | 0" | ✅ Rainfall sufficient |
| Apr | 2.6" | 4.9" | 0" | ✅ Rainfall sufficient |
| May | 2.6" | 5.3" | 0" | ✅ Rainfall sufficient |
| Jun | 2.6" | 5" | 0" | ✅ Rainfall sufficient |
| Jul | 2.6" | 6.1" | 0" | ✅ Rainfall sufficient |
| Aug | 2.6" | 5.4" | 0" | ✅ Rainfall sufficient |
| Sep | 2.6" | 4.9" | 0" | ✅ Rainfall sufficient |
| Oct | 2.6" | 3.9" | 0" | ✅ Rainfall sufficient |
| Nov | 2.6" | 4.9" | 0" | ✅ Rainfall sufficient |
| Dec | — | 5.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Tensas Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Fennel 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.
Fennel Planting Timeline — Tensas Parish, LA
Fennel 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 – Jul 6 |
Plant 1" deep · 15" apart · Rows 24" 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 | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
0.6"/week · Natural rainfall sufficient
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 5.5–7 · Your soil: ideal
🗺️ USDA Zone
Zone 8b
📆 Growing Season
248 days in Tensas Parish
Growing Tips for Fennel in Tensas Parish
Direct sow Fennel outdoors after March 09 in Tensas Parish when soil has warmed and frost danger has passed.
Common pests for Fennel in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.
General growing tips
Direct sow in late summer for fall harvest to reduce bolting. Hill soil around bulbs as they enlarge. Harvest when bulbs are tennis-ball sized before they elongate.
Companion Planting
Good Companions
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Check more plant combinations with our Companion Planting Checker →
Fennel in Other Locations
Frequently Asked Questions
When should I plant Fennel in Tensas Parish, LA?
Tensas Parish is in Zone 8b with an average last frost of March 9. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.
What planting zone is Tensas Parish, LA?
Tensas Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 9 and first fall frost is November 12.
Your Tensas Parish Garden Planner — Free
A 24-page printable planner built for Tensas 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.