When to Plant Fennel in Webster Parish, LA
Your May game plan for Webster Parish, Louisiana
A quick May briefing for Webster Parish, Louisiana gardeners — what's urgent, what's next, and what can wait.
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Time to start fennel inside
You're about 24 weeks out from your last frost — the perfect window to get these germinating indoors.
Coming up in June — start thinking about
- 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.
Webster Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 21 and the first fall frost is November 10, giving you a growing season of approximately 234 days.
At an elevation of 138 feet, Webster Parish receives approximately 57 inches of rainfall annually with predominantly loam soil. Summer highs average 94°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.
Webster Parish Soil Profile
Soil Type
Loam
Soil pH
5.8-6.7
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 Webster Parish
How your county's soil matches Fennel's growing requirements.
Soil pH
Your soil pH (5.8–6.7) is within Fennel's preferred range (5.5–7.0).
Soil Texture
The loam soil in Webster Parish is excellent for Fennel — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.7%). Annual compost additions will help Fennel.
How to Plant Fennel
Succession Planting Fennel
Sow every 6.9 weeks. Last sowing by Aug 12 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 | — | 4.5" | 0" | ❄️ Dormant |
| Feb | — | 5.1" | 0" | ❄️ Dormant |
| Mar | 2.6" | 5.5" | 0" | ✅ Rainfall sufficient |
| Apr | 2.6" | 4.6" | 0" | ✅ Rainfall sufficient |
| May | 2.6" | 4.1" | 0" | ✅ Rainfall sufficient |
| Jun | 2.6" | 5.8" | 0" | ✅ Rainfall sufficient |
| Jul | 2.6" | 5.9" | 0" | ✅ Rainfall sufficient |
| Aug | 2.6" | 5" | 0" | ✅ Rainfall sufficient |
| Sep | 2.6" | 4.2" | 0" | ✅ Rainfall sufficient |
| Oct | 2.6" | 3.7" | 0" | ✅ Rainfall sufficient |
| Nov | 2.6" | 4.4" | 0" | ✅ Rainfall sufficient |
| Dec | — | 4.3" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Webster 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 — Webster Parish, LA
Fennel Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 31 | Jan 31 – Feb 14 |
| Transplant Outdoors | April 4 | Apr 4 – Apr 18 |
| Direct Sow | March 28 | Mar 28 – Apr 18 |
| Harvest | June 6 | Jun 6 – Jul 18 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Start Indoors |
| March | Direct Sow |
| April | Transplant Outdoors Direct Sow |
| May | — |
| 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
234 days in Webster Parish
Growing Tips for Fennel in Webster Parish
Direct sow Fennel outdoors after March 21 in Webster 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
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Fennel in Other Locations
Frequently Asked Questions
When should I plant Fennel in Webster Parish, LA?
Webster Parish is in Zone 8b with an average last frost of March 21. Plan your Fennel planting based on this frost date — see the calendar above for exact timing.
What planting zone is Webster Parish, LA?
Webster Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 21 and first fall frost is November 10.
Your Webster Parish Garden Planner — Free
A 24-page printable planner built for Webster 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.