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When to Plant Lemongrass in Osceola County, FL

Lemongrass is a tropical grass with a strong citrus aroma used extensively in Southeast Asian cuisine. The swollen stem bases are the most flavorful part.

Osceola County, Florida is in USDA Zone 9b. 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 102ยฐF, so Lemongrass may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Lemongrass will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lemongrass root diseases.

Osceola County, FL (Zone 9b) 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 (159 days to spare)
Start indoors: Dec 1 Transplant: Jan 19 🍅 Harvest: Apr 6 – Jul 6
Recommended (50%) ✓ Fits season (157 days to spare)
Start indoors: Dec 11 Transplant: Jan 29 🍅 Harvest: Apr 16 – Jul 16
Safe Start (90%) ✓ Fits season (134 days to spare)
Start indoors: Jan 7 Transplant: Feb 25 🍅 Harvest: May 13 – Aug 12

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.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.7″/week
You supply
0.9″/week
Watering frequency 2-3 times/week
Season total 2,702 gal / 100 sq ft
Drought risk

Water stress score is 6/10 โ€” consider drought-tolerant varieties and mulching

Lemongrass needs ~2,584 GDD — county provides 8,824 GDD Excellent fit

Lemongrass Planting Timeline โ€” Osceola County, FL

Lemongrass Planting Calendar

Activity When Date Range
Start Indoors December 11 Dec 11 โ€“ Dec 25
Transplant Outdoors January 29 Jan 29 โ€“ Feb 12
Direct Sow January 29 Jan 29 โ€“ Feb 19
Harvest April 16 Apr 16 โ€“ Jul 16

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

High โ€” keep soil consistently moist

Days to Maturity

75โ€“120 days

Soil pH

5.5 โ€“ 7.5

USDA Zone

Zone 9b

Growing Season

332 days

Growing Tips for Osceola County

Start from divisions or store-bought stalks rooted in water. Grow in rich, moist soil with full sun. In cold climates, grow in containers and overwinter indoors.

Companion Planting

Good Companions

Level Up Your Garden

Frequently Asked Questions

When should I plant Lemongrass in Osceola County, FL?

Osceola County is in Zone 9b with an average last frost of January 22. Plan your Lemongrass planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Osceola County, FL?

Osceola County, Florida is in USDA Hardiness Zone 9b. The average last spring frost is January 22 and first fall frost is December 20.

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Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Osceola County gardeners in Zone 9b organize planting dates, track what's growing, and never miss a planting window.

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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 Osceola County, FL. Local conditions may vary. Last updated: April 2026.