Blog

When to Plant Parsley in Osceola County, FL

Osceola County, Florida Zone 10a May

Your May planting checklist for Osceola County, Florida

Your garden in Osceola County, Florida is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost January 22
Avg. first frost December 20
Soil temp (4") 77°F
Watering Moderate
Pest pressure High
Daylight 13.4 hrs
  1. Basket week: parsley

    This is the payoff month. Bring a basket, bring a friend, and get into the beds.

Instant PDF download. No spam, unsubscribe any time.

Parsley is a biennial herb available in flat-leaf (Italian) and curly varieties. It is a nutritional powerhouse rich in vitamins C and K and adds fresh flavor to countless dishes.

Osceola County, Florida is in USDA Zone 10a. The average last spring frost is January 22 and the first fall frost is December 20, giving you a growing season of approximately 332 days.

At an elevation of 352 feet, Osceola County receives approximately 58.7 inches of rainfall annually with predominantly sand soil. Summer highs average 102°F, so Parsley may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Parsley will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Parsley root diseases.

Osceola County, FL (Zone 10a) Year-round
332 days
Last Spring Frost January 22
332 growing days
First Fall Frost December 20

Osceola County Soil Profile

Soil Type

Sand

Soil pH

4.9-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (215 days to spare)
Start indoors: Dec 15 Transplant: Jan 5 🍅 Harvest: Mar 9 – May 11
Recommended (50%) ✓ Fits season (213 days to spare)
Start indoors: Dec 25 Transplant: Jan 15 🍅 Harvest: Mar 19 – May 21
Safe Start (90%) ✓ Fits season (190 days to spare)
Start indoors: Jan 21 Transplant: Feb 11 🍅 Harvest: Apr 15 – Jun 17

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 Osceola County

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

Soil pH

Your soil pH (4.9–6.1) is more acidic than Parsley prefers (6.0–7.0). Add garden lime to raise pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.7%). Add 2-3 inches of compost before planting Parsley.

How to Plant Parsley

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

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

Succession Planting Parsley

6
successive plantings in your 332-day season

Sow every 6.9 weeks. Last sowing by Oct 01 to harvest before frost.

For a dedicated fall crop, sow by Oct 25.

Plant Water Budget

Plant needs
0.6″/week
Rainfall provides
0.7″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 6/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Parsley

Parsley needs approximately 0.6 inches of water per week (2.6" per month). Here's how your county's rainfall compares month by month.

Month Parsley Needs Rainfall You Supplement Action
Jan 2.6" 2.6" 0" ✅ Rainfall sufficient
Feb 2.6" 3.5" 0" ✅ Rainfall sufficient
Mar 2.6" 3.9" 0" ✅ Rainfall sufficient
Apr 2.6" 3" 0" ✅ Rainfall sufficient
May 2.6" 3.7" 0" ✅ Rainfall sufficient
Jun 2.6" 8.2" 0" ✅ Rainfall sufficient
Jul 2.6" 9.6" 0" ✅ Rainfall sufficient
Aug 2.6" 8.1" 0" ✅ Rainfall sufficient
Sep 2.6" 7.1" 0" ✅ Rainfall sufficient
Oct 2.6" 4.4" 0" ✅ Rainfall sufficient
Nov 2.6" 2.2" 0.4" 💧 Light watering
Dec 2.6" 2.4" 0.2" 💧 Light watering

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

Parsley 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.

Parsley needs ~1,855 GDD — county provides 8,824 GDD Excellent fit

Parsley Planting Timeline — Osceola County, FL

Parsley Planting Calendar

Activity When Date Range
Start Indoors December 25 Dec 25 – Jan 8
Transplant Outdoors January 15 Jan 15 – Jan 29
Direct Sow January 1 Jan 1 – Jan 22
Harvest March 19 Mar 19 – May 21
Fall Sowing October 25 Oct 25 – Nov 8

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Partial Shade (3-6 hours)

💧 Water

0.6"/week · Natural rainfall sufficient

📅 Days to Maturity

60–80 days

🧪 Soil pH

Needs 6–7 · Your soil: too_acidic

🗺️ USDA Zone

Zone 10a

📆 Growing Season

332 days in Osceola County

Growing Tips for Parsley in Osceola County

Direct sow Parsley outdoors after January 22 in Osceola County when soil has warmed and frost danger has passed.

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

With summer highs reaching 102°F in Osceola County, provide afternoon shade for Parsley and water deeply in the morning.

Common pests for Parsley in this region include carrot rust fly and parsleyworm. Use row covers early in the season and inspect plants weekly.

General growing tips

Start seeds indoors 6-8 weeks before last frost. Soak seeds overnight as germination is slow. Harvest outer stems first to keep plants productive. Parsley attracts swallowtail butterflies.

Companion Planting

Good Companions

Avoid Planting Near

  • Mint
  • Lettuce

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Parsley in Osceola County, FL?

Osceola County is in Zone 10a with an average last frost of January 22. Plan your Parsley planting based on this frost date — see the calendar above for exact timing.

What planting zone is Osceola County, FL?

Osceola County, Florida is in USDA Hardiness Zone 10a. The average last spring frost is January 22 and first fall frost is December 20.

🌱

Your Osceola County Garden Planner — Free

A 24-page printable planner built for Osceola 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.

Instant PDF download. No spam, unsubscribe any time.

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

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.