When to Plant Tomatoes in Caldwell Parish, LA
This month in Caldwell Parish, Louisiana
Your Caldwell Parish, Louisiana garden is entering a new phase. Here's what's on the schedule for May and why each task matters now.
-
Start harvesting tomatoes
Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.
A few tasks this May that'll pay off in June
- First harvests: tomatoes
Tomatoes are the most popular home garden crop, available in thousands of varieties from tiny cherries to massive beefsteaks. They are warm-season plants needing full sun.
Caldwell Parish, Louisiana is in USDA Zone 8b. The average last spring frost is March 10 and the first fall frost is November 12, giving you a growing season of approximately 247 days.
At an elevation of 334 feet, Caldwell Parish receives approximately 49.6 inches of rainfall annually with predominantly loam soil. Summer highs average 96°F, so Tomatoes may need afternoon shade and extra watering during peak heat.
Caldwell Parish Soil Profile
Soil Type
Loam
Soil pH
5.9-7
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 Caldwell Parish
How your county's soil matches Tomatoes's growing requirements.
Soil pH
Your soil pH (5.9–7.0) overlaps with Tomatoes's range (6.0–7.0), though not a perfect match.
Soil Texture
The loam soil in Caldwell Parish is excellent for Tomatoes — good drainage, moisture retention, and nutrient holding capacity.
Organic Matter
Organic matter is moderate (2.4%). Annual compost additions will help Tomatoes.
How to Plant Tomatoes
Succession Planting Tomatoes
Sow every 6.9 weeks. Last sowing by Aug 19 to harvest before frost.
Plant Water Budget
Monthly Watering Guide for Tomatoes
Tomatoes needs approximately 1.2 inches of water per week (5.2" per month). Here's how your county's rainfall compares month by month.
| Month | Tomatoes Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4" | 0" | ❄️ Dormant |
| Feb | — | 3.6" | 0" | ❄️ Dormant |
| Mar | 5.2" | 4.4" | 0.8" | 💧 Light watering |
| Apr | 5.2" | 4.3" | 0.9" | 💧 Light watering |
| May | 5.2" | 4.3" | 0.9" | 💧 Light watering |
| Jun | 5.2" | 4.5" | 0.7" | 💧 Light watering |
| Jul | 5.2" | 4.6" | 0.6" | 💧 Light watering |
| Aug | 5.2" | 4.8" | 0.4" | 💧 Light watering |
| Sep | 5.2" | 4.1" | 1.1" | 💧 Light watering |
| Oct | 5.2" | 3.5" | 1.7" | 💧 Light watering |
| Nov | 5.2" | 3.6" | 1.6" | 💧 Light watering |
| Dec | — | 3.9" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Mar–Nov in Caldwell Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Tomatoes 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.
Tomatoes Planting Timeline — Caldwell Parish, LA
Tomatoes Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 20 | Jan 20 – Feb 3 |
| Transplant Outdoors | March 24 | Mar 24 – Apr 7 |
| Direct Sow | March 17 | Mar 17 – Apr 7 |
| Harvest | May 26 | May 26 – Aug 4 |
Plant 0.5" deep · 24" apart · Rows 36" 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
1.2"/week · 1-2 times/week
📅 Days to Maturity
60–85 days
🧪 Soil pH
Needs 6–7 · Your soil: acceptable
🗺️ USDA Zone
Zone 8b
📆 Growing Season
247 days in Caldwell Parish
Growing Tips for Tomatoes in Caldwell Parish
Direct sow Tomatoes outdoors after March 10 in Caldwell Parish when soil has warmed and frost danger has passed.
With summer highs reaching 96°F in Caldwell Parish, provide afternoon shade for Tomatoes and water deeply in the morning.
Common pests for Tomatoes in this region include tomato hornworm and aphids. Use row covers early in the season and inspect plants weekly.
General growing tips
Start seeds indoors 6-8 weeks before last frost. Bury transplants deep to encourage rooting along the stem. Provide consistent moisture to prevent blossom end rot and cracking.
Recommended Tomatoes Varieties for Caldwell Parish
Heat-set varieties that pollinate reliably above 90°F
Your long season supports large indeterminate heirloom types
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Isolate 25 ft between varieties for purity. Use open-pollinated varieties for true-to-type seeds.
Tomatoes in Other Locations
Frequently Asked Questions
When should I plant Tomatoes in Caldwell Parish, LA?
Caldwell Parish is in Zone 8b with an average last frost of March 10. Plan your Tomatoes planting based on this frost date — see the calendar above for exact timing.
What planting zone is Caldwell Parish, LA?
Caldwell Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is March 10 and first fall frost is November 12.
Your Caldwell Parish Garden Planner — Free
A 24-page printable planner built for Caldwell 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.