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When to plant Amaranth in Suwannee County County,

For Suwannee County County, gardeners: plant Amaranth March 4 through March 25 once soil reads 50°F.

When to Plant Amaranth in Suwannee County, FL

Suwannee County, Florida Zone 9a June

Suwannee County, Florida gardeners: here's your June plan

Welcome to June in Zone 9a. These are the moves that will have the biggest impact on your growing season.

Avg. last frost March 4
Avg. first frost November 26
Soil temp (4") 84°F
Watering Low
Pest pressure High
Daylight 13.9 hrs
  1. Bring in the amaranth

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

To set up a strong July, finish these tasks
  • First harvests: amaranth

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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.

Suwannee County, Florida is in USDA Zone 9a. The average last spring frost is March 4 and the first fall frost is November 26, giving you a growing season of approximately 267 days.

At an elevation of 383 feet, Suwannee County receives approximately 53.6 inches of rainfall annually with predominantly sand soil. Summer highs average 91°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. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Amaranth root diseases.

Suwannee County, FL (Zone 9a) Long season
267 days
Last Spring Frost March 4
267 growing days
First Fall Frost November 26

Suwannee County Soil Profile

Soil Type

Sand

Soil pH

5.1-6

Drainage

Well Drained

Amaranth Planting Risk Windows

Early Start (70% safe) ✓ Fits season (123 days to spare)
Start indoors: Jan 8 Transplant: Feb 26 🍅 Harvest: May 28 – Jul 16
Recommended (50%) ✓ Fits season (120 days to spare)
Start indoors: Jan 21 Transplant: Mar 11 🍅 Harvest: Jun 10 – Jul 29
Safe Start (90%) ✓ Fits season (124 days to spare)
Start indoors: Feb 10 Transplant: Mar 31 🍅 Harvest: Jun 30 – Aug 18

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 Suwannee County

How your county's soil matches Amaranth's growing requirements.

Soil pH

Your soil pH (5.1–6.0) is more acidic than Amaranth prefers (6.0–7.5). Add garden lime to raise pH.

Soil Texture

Sandy soil in Suwannee County warms quickly in spring but drains fast. Amaranth will need more frequent watering and regular compost additions to retain nutrients.

Organic Matter

Organic matter is low (1.4%). Add 2-3 inches of compost before planting Amaranth.

How to Plant Amaranth

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Amaranth Water Budget

Plant needs
1.0″/week
Rainfall provides
0.8″/week
You supply
0.2″/week
Watering frequency Only during dry spells
Season total 373 gal / 100 sq ft

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 2.5" 0" ❄️ Dormant
Feb 3" 0" ❄️ Dormant
Mar 4.3" 3.2" 1.1" 💧 Light watering
Apr 4.3" 2.6" 1.7" 💧 Light watering
May 4.3" 3.8" 0.5" 💧 Light watering
Jun 4.3" 8" 0" ✅ Rainfall sufficient
Jul 4.3" 7.8" 0" ✅ Rainfall sufficient
Aug 4.3" 7.3" 0" ✅ Rainfall sufficient
Sep 4.3" 7.1" 0" ✅ Rainfall sufficient
Oct 4.3" 4.1" 0.2" 💧 Light watering
Nov 4.3" 2.3" 2" 💧 Light watering
Dec 2" 0" ❄️ Dormant

Water needs are for active growing months only (Mar–Nov in Suwannee 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 needs ~1,916 GDD — county provides 4,872 GDD Excellent fit

Amaranth Planting Timeline — Suwannee County, FL

Amaranth Planting Calendar

Activity When Date Range
Start Indoors January 21 Jan 21 – Feb 4
Transplant Outdoors March 11 Mar 11 – Mar 25
Direct Sow March 4 Mar 4 – Mar 25
Harvest June 10 Jun 10 – Jul 29

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

MonthActivities
January Start Indoors
February Start Indoors
March Transplant Outdoors Direct Sow
April
May
June Harvest
July Harvest
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Only during dry spells

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_acidic

🗺️ USDA Zone

Zone 9a

📆 Growing Season

267 days in Suwannee County

Growing Tips for Amaranth in Suwannee County

Direct sow Amaranth outdoors after March 04 in Suwannee County when soil has warmed and frost danger has passed.

Sandy soil in Suwannee 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

  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Amaranth in Suwannee County, FL?

Suwannee County is in Zone 9a with an average last frost of March 4. Plan your Amaranth planting based on this frost date — see the calendar above for exact timing.

What planting zone is Suwannee County, FL?

Suwannee County, Florida is in USDA Hardiness Zone 9a. The average last spring frost is March 4 and first fall frost is November 26.

When should I plant Amaranth in Suwannee County, ?

In Suwannee County, , plant Amaranth after the last frost (around March 4) and before the first frost (around November 26). Best results when soil holds above 50°F.

What growing zone is Suwannee County, for Amaranth?

Suwannee County sits in USDA Zone 9a. Amaranth grows reliably in zones 2a through 11b, so it's a good fit here.

Can Amaranth grow in Suwannee County's climate?

Yes — Amaranth grows well in Suwannee County's temperate climate. Suwannee County averages a 267-day frost-free season, with last frost around March 4 and first frost around November 26.

🌱

Your Suwannee County Garden Planner — Free

A 22-page printable planner built for Suwannee County (Zone 9a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

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Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Suwannee County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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