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When to plant Scallions in Orange County, FL

The best window to plant Scallions in Orange County, is January 13–February 3, when soil warms to 50°F. Last frost typically hits February 3; first frost December 21. A second sowing from October 26 to November 9 extends the harvest into fall.

When to Plant Scallions in Orange County, FL

Orange County, Florida Zone 10a June

Your June game plan for Orange County, Florida

Your Orange County, Florida garden is entering a new phase. Here's what's on the schedule for June and why each task matters now.

Avg. last frost February 3
Avg. first frost December 21
Soil temp (4") 86°F
Watering Low
Pest pressure High
Daylight 13.8 hrs
  1. Survive, don't thrive

    June-August is endurance gardening. Keep okra, peppers, sweet potatoes, and southern peas alive. Harvest everything daily before the heat damages produce on the vine.

  2. Start fall tomato seeds indoors

    Yes, indoors — under lights or in AC. They'll be ready to transplant in August when temperatures briefly moderate.

  3. Add compost to empty beds

    Empty beds get a thick layer of compost + mulch to suppress weeds and feed the soil for fall planting.

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Scallions (green onions) are mild-flavored alliums harvested for their slender green tops and white bases. They are quick-growing and perfect for succession planting.

Orange County, Florida is in USDA Zone 10a. The average last spring frost is February 3 and the first fall frost is December 21, giving you a growing season of approximately 321 days.

At an elevation of 494 feet, Orange County receives approximately 54.3 inches of rainfall annually with predominantly sand soil. Summer highs average 99°F, so Scallions may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Scallions will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Scallions root diseases.

Orange County, FL (Zone 10a) Year-round
321 days
Last Spring Frost February 3
321 growing days
First Fall Frost December 21

Orange County Soil Profile

Soil Type

Sand

Soil pH

5-5.8

Drainage

Well Drained

Scallions Planting Risk Windows

Early Start (70% safe) ✓ Fits season (248 days to spare)
Start indoors: Dec 22 Transplant: Jan 19 🍅 Harvest: Mar 16 – Apr 13
Recommended (50%) ✓ Fits season (237 days to spare)
Start indoors: Jan 6 Transplant: Feb 3 🍅 Harvest: Mar 31 – Apr 28
Safe Start (90%) ✓ Fits season (214 days to spare)
Start indoors: Feb 3 Transplant: Mar 3 🍅 Harvest: Apr 28 – May 26

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 Orange County

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

Soil pH

Your soil pH (5.0–5.8) is more acidic than Scallions prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Drainage

Drainage is adequate for Scallions.

Organic Matter

Organic matter is low (1.6%). Add 2-3 inches of compost before planting Scallions.

How to Plant Scallions

0.5"
Planting Depth
6"
Between Plants
12"
Between Rows

Fall planting: Sow 8 weeks before your first frost date for a fall harvest.

Succession Planting Scallions

7
successive plantings in your 321-day season

Sow every 5.7 weeks. Last sowing by Oct 12 to harvest before frost.

For a dedicated fall crop, sow by Oct 26.

Scallions Water Budget

Plant needs
1.0″/week
Rainfall provides
0.7″/week
You supply
0.6″/week
Watering frequency 1-2 times/week
Season total 1,696 gal / 100 sq ft

Monthly Watering Guide for Scallions

Scallions needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Scallions Needs Rainfall You Supplement Action
Jan 2.5" 0" ❄️ Dormant
Feb 4.3" 3" 1.3" 💧 Light watering
Mar 4.3" 2.9" 1.4" 💧 Light watering
Apr 4.3" 2.6" 1.7" 💧 Light watering
May 4.3" 4.1" 0.2" 💧 Light watering
Jun 4.3" 7.1" 0" ✅ Rainfall sufficient
Jul 4.3" 7.7" 0" ✅ Rainfall sufficient
Aug 4.3" 8.7" 0" ✅ Rainfall sufficient
Sep 4.3" 6.5" 0" ✅ Rainfall sufficient
Oct 4.3" 4.8" 0" ✅ Rainfall sufficient
Nov 4.3" 2" 2.3" 🚿 Regular watering
Dec 4.3" 2.3" 2" 💧 Light watering

Water needs are for active growing months only (Feb–Dec in Orange County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Scallions 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.

Scallions needs ~1,455 GDD — county provides 7,808 GDD Excellent fit

Scallions Planting Timeline — Orange County, FL

Scallions Planting Calendar

Activity When Date Range
Start Indoors January 6 Jan 6 – Jan 20
Transplant Outdoors February 3 Feb 3 – Feb 17
Direct Sow January 13 Jan 13 – Feb 3
Harvest March 31 Mar 31 – Apr 28
Fall Sowing October 26 Oct 26 – Nov 9

Plant 0.5" deep · 6" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · 1-2 times/week

📅 Days to Maturity

50–70 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

321 days in Orange County

Growing Tips for Scallions in Orange County

Direct sow Scallions outdoors after February 03 in Orange County when soil has warmed and frost danger has passed.

Sandy soil in Orange County dries quickly — mulch Scallions with 2-3 inches of straw and water deeply 2-3 times per week rather than lightly every day.

With summer highs reaching 99°F in Orange County, provide afternoon shade for Scallions and water deeply in the morning.

Common pests for Scallions in this region include onion maggots and thrips. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow every 3 weeks for continuous harvest. Thin to 1 inch apart or grow in clusters. Harvest when pencil-thick by pulling or cutting at soil level.

Companion Planting

Good Companions

Avoid Planting Near

  • Peas
  • Green Beans

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Scallions in Orange County, FL?

Orange County is in Zone 10a with an average last frost of February 3. Plan your Scallions planting based on this frost date — see the calendar above for exact timing.

What planting zone is Orange County, FL?

Orange County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is February 3 and first fall frost is December 21.

When should I plant Scallions in Orange County, FL?

In Orange County, FL, plant Scallions after the last frost (around February 3) and before the first frost (around December 21). Best results when soil holds above 50°F.

What growing zone is Orange County, FL for Scallions?

Orange County sits in USDA Zone 10a. Scallions grows reliably in zones 3a through 10b, so it's a good fit here.

Can Scallions grow in Orange County's climate?

Yes — Scallions grows well in Orange County's temperate climate. Orange County averages a 322-day frost-free season, with last frost around February 3 and first frost around December 21.

🌱

Your Orange County Garden Planner — Free

A 22-page printable planner built for Orange County (Zone 10a). 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 Orange County, FL. Local conditions may vary. Last updated: June 2026.

Sources & credits

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