When to plant Amaranth in Jupiter, FL
Spring Amaranth in Jupiter goes in February 17–March 10, once nighttime temps stop dipping near freezing.
When to Plant Amaranth in Jupiter, FL
Your July game plan for Palm Beach County, Florida
Your garden in Palm Beach County, Florida is working on a schedule, even when you're not. Here's where you should be this July.
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Pick amaranth
If you can't use it all right away, check the food-preservation section of your planner.
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.
Jupiter, Florida is in USDA Zone 10b. The average last spring frost is February 17 and the first fall frost is April 15, giving you a growing season of approximately 57 days.
At an elevation of 355 feet, Palm Beach County receives approximately 50 inches of rainfall annually with predominantly sand soil. Summer highs average 93°F, providing good warmth for Amaranth during the growing season. Sandy soil warms quickly in spring — great for early planting — but Amaranth will need more frequent watering and organic matter to retain nutrients.
Jupiter Soil Profile
Soil Type
Sand
Soil pH
5.1-5.9
Drainage
Well Drained
Soil Compatibility in Jupiter
How your county's soil matches Amaranth's growing requirements.
Soil pH
Your soil pH (5.1–5.9) is more acidic than Amaranth prefers (6.0–7.5). Add garden lime to raise pH.
Soil Texture
Sandy soil in Palm Beach County 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 low (1.3%). Add 2-3 inches of compost before planting Amaranth.
How to Plant Amaranth
Amaranth 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 | — | 2.4" | 0" | ❄️ Dormant |
| Feb | 4.3" | 2.3" | 2" | 💧 Light watering |
| Mar | 4.3" | 3.2" | 1.1" | 💧 Light watering |
| Apr | 4.3" | 2.4" | 1.9" | 💧 Light watering |
| May | 4.3" | 3.3" | 1" | 💧 Light watering |
| Jun | 4.3" | 6.2" | 0" | ✅ Rainfall sufficient |
| Jul | 4.3" | 7.3" | 0" | ✅ Rainfall sufficient |
| Aug | 4.3" | 7.4" | 0" | ✅ Rainfall sufficient |
| Sep | 4.3" | 7" | 0" | ✅ Rainfall sufficient |
| Oct | 4.3" | 4.2" | 0.1" | 💧 Light watering |
| Nov | — | 2" | 0" | ❄️ Dormant |
| Dec | — | 2.2" | 0" | ❄️ Dormant |
Water needs are for active growing months only (Feb–Oct in Palm Beach County). 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 — Jupiter, FL
Amaranth Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | January 6 | Jan 6 – Jan 20 |
| Transplant Outdoors | February 24 | Feb 24 – Mar 10 |
| Direct Sow | February 17 | Feb 17 – Mar 10 |
| Harvest | May 26 | May 26 – Jul 14 |
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 · 2-3 times/week
📅 Days to Maturity
90–120 days
🧪 Soil pH
Needs 6–7.5 · Your soil: too_acidic
🗺️ USDA Zone
Zone 10b
📆 Growing Season
57 days in Palm Beach County
Growing Tips for Amaranth in Jupiter
Direct sow Amaranth outdoors after February 17 in Palm Beach County when soil has warmed and frost danger has passed.
Sandy soil in Palm Beach County dries quickly — mulch Amaranth with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.
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
When should I plant Amaranth in Jupiter, FL?
In Jupiter, FL, plant Amaranth after the last frost (around January 1) and before the first frost (around December 31). Best results when soil holds above 50°F.
What growing zone is Jupiter, FL for Amaranth?
Jupiter sits in USDA Zone 10b. Amaranth grows reliably in zones 2a through 11b, so it's a good fit here.
Can Amaranth grow in Jupiter's climate?
Yes — Amaranth grows well in Jupiter's temperate climate. Jupiter averages a 365-day frost-free season, with last frost around January 1 and first frost around December 31.
Your Palm Beach County Garden Planner — Free
A 22-page printable planner built for Palm Beach County (Zone 10b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.