When to Plant Amaranth in Assumption Parish, LA
May in the garden — Assumption Parish, Louisiana
May is a pivotal month for Assumption Parish, Louisiana gardens. Focus on these tasks first and you'll set up the rest of the season for success.
-
Basket week: amaranth
Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.
To set up a strong June, finish these tasks
- First harvests: amaranth
Amaranth is an ancient grain crop with edible leaves and seeds, rich in protein and micronutrients. It thrives in warm conditions and is drought-tolerant once established.
Assumption Parish, Louisiana is in USDA Zone 9b. The average last spring frost is February 13 and the first fall frost is December 5, giving you a growing season of approximately 295 days.
At an elevation of 126 feet, Assumption Parish receives approximately 55.7 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 104°F, so Amaranth may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Amaranth will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Amaranth root diseases.
Assumption Parish Soil Profile
Soil Type
Sandy Loam
Soil pH
5-6.3
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 Assumption Parish
How your county's soil matches Amaranth's growing requirements.
Soil pH
Your soil pH (5.0–6.3) is more acidic than Amaranth prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Assumption Parish warms quickly in spring but drains fast. Amaranth will need more frequent watering and regular compost additions to retain nutrients.
Drainage
Drainage is adequate for Amaranth.
Organic Matter
Organic matter is moderate (2.2%). Annual compost additions will help Amaranth.
How to Plant Amaranth
Plant Water Budget
Monthly Watering Guide for Amaranth
Amaranth needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.
| Month | Amaranth Needs | Rainfall | You Supplement | Action |
|---|---|---|---|---|
| Jan | — | 4.4" | 0" | ❄️ Dormant |
| Feb | 4.3" | 4.6" | 0" | ✅ Rainfall sufficient |
| Mar | 4.3" | 5.5" | 0" | ✅ Rainfall sufficient |
| Apr | 4.3" | 4.3" | 0" | ✅ Rainfall sufficient |
| May | 4.3" | 4.4" | 0" | ✅ Rainfall sufficient |
| Jun | 4.3" | 4.8" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 6.2" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 5" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 3.9" | 0.4" | 💧 Light watering |
| Oct | 4.3" | 3.8" | 0.5" | 💧 Light watering |
| Nov | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Dec | 4.3" | 4.6" | 0" | ✅ Rainfall sufficient |
Water needs are for active growing months only (Feb–Dec in Assumption Parish). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.
Amaranth 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.
Amaranth Planting Timeline — Assumption Parish, LA
Amaranth Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 2 | Jan 2 – Jan 16 |
| Transplant Outdoors | February 20 | Feb 20 – Mar 6 |
| Direct Sow | February 13 | Feb 13 – Mar 6 |
| Harvest | May 22 | May 22 – Jul 10 |
Plant 1" deep · 15" apart · Rows 24" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | Start Indoors |
| February | Transplant Outdoors Direct Sow |
| March | Transplant Outdoors Direct Sow |
| April | — |
| May | Harvest |
| June | Harvest |
| July | Harvest |
| August | — |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
1"/week · Natural rainfall sufficient
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 9b
📆 Growing Season
295 days in Assumption Parish
Growing Tips for Amaranth in Assumption Parish
Direct sow Amaranth outdoors after February 13 in Assumption Parish when soil has warmed and frost danger has passed.
Sandy soil in Assumption Parish dries quickly — mulch Amaranth with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
With summer highs reaching 104°F in Assumption Parish, provide afternoon shade for Amaranth and water deeply in the morning.
General growing tips
Direct sow after last frost when soil is warm. Thin seedlings to 18 inches apart. Harvest leaves when young and tender; harvest seeds when flower heads begin to dry.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Amaranth in Other Locations
Frequently Asked Questions
When should I plant Amaranth in Assumption Parish, LA?
Assumption Parish is in Zone 9b with an average last frost of February 13. Plan your Amaranth planting based on this frost date — see the calendar above for exact timing.
What planting zone is Assumption Parish, LA?
Assumption Parish, Louisiana is in USDA Hardiness Zone 9b. The average last spring frost is February 13 and first fall frost is December 5.
Your Assumption Parish Garden Planner — Free
A 24-page printable planner built for Assumption Parish (Zone 9b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.