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When to Plant Lemongrass in USDA Zone 11a

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.

In Zone 11a, the average last spring frost is around January 1 and the first fall frost is around December 31, giving you a growing season of approximately 364 days.

Zone 11a Year-round
364 days
Last Spring Frost January 1
364 growing days
First Fall Frost December 31

Lemongrass Planting Timeline — Zone 11a

Where Is USDA Zone 11a?

The map below highlights the states that contain Zone 11a. Click any state to see the Lemongrass planting schedule for that location.

Prints a clean, ink-friendly version without maps or navigation.

Lemongrass Planting Calendar — Zone 11a

Activity When Date Range
Start Indoors November 20 Nov 20 – Dec 4
Transplant Outdoors January 8 Jan 8 – Jan 22
Direct Sow January 8 Jan 8 – Jan 29
Harvest March 26 Mar 26 – Jun 25

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

Month-by-Month Timeline

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

Free Zone 11a Planting Calendar PDF

Know exactly when to plant every crop in your zone. Get a printable month-by-month calendar customized for Zone 11a with start dates, transplant windows, and harvest times.

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Growing Conditions

Sun

Full Sun (6-8+ hours)

💧 Water

High — keep soil consistently moist

Days to Maturity

75–120 days

Soil pH

5.5 – 7.5

Zone Temperature Range

40°F to 45°F average annual minimum

Growing Season

364 days (Zone 11a average)

Planting Specifications

Planting Depth0.5 inches
Plant Spacing8 inches apart
Row Spacing12 inches between rows

Succession Planting Lemongrass in Zone 11a

5
successive plantings in Zone 11a's ~364-day season

Sow every 8.6 weeks for continuous harvest throughout the season.

Growing Tips for Lemongrass in Zone 11a

Zone 11a offers a long growing season (~364 days). You can plant Lemongrass earlier and may get multiple harvests.

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

Saving Lemongrass Seeds

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Fabric Grow Bags $10-25

Breathable fabric pots that promote healthy root growth and prevent overwatering.

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Self-Watering Planters $15-40

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Frequently Asked Questions

When should I plant Lemongrass in Zone 11a?

In Zone 11a, plan your Lemongrass planting around the average last frost date of January 1. Start seeds indoors around November 20. Direct sow outdoors around January 8. Transplant seedlings around January 8.

Can Lemongrass grow in Zone 11a?

Yes, Lemongrass can grow well in Zone 11a, hardy in USDA zones 8a through 11b. Zone 11a has a growing season of approximately 364 days, which is sufficient for Lemongrass (75-120 days to maturity).

When can I harvest Lemongrass in Zone 11a?

In Zone 11a, expect to harvest Lemongrass from March 26 – June 25. Lemongrass takes 75-120 days from planting to harvest.

What is the last frost date for Zone 11a?

The average last spring frost in Zone 11a is around January 1, and the first fall frost is around December 31. This gives a growing season of approximately 364 days. These are 50% probability dates — actual frost dates vary year to year.

What should I plant next to Lemongrass?

Good companion plants for Lemongrass include Tomatoes, Peppers. These companions can help with pest control, pollination, and nutrient sharing.

🌱

Plan Your Garden with Confidence

Get our free Garden Planner — organize your planting dates for Zone 11a, track your crops, and plan your garden season from seed to harvest.

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Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Planting dates are estimates based on average frost dates — local conditions may vary. Last updated: April 2026.