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When to Plant Lemongrass in Houston County, TX

Houston County, Texas Zone 8b May

May in Houston County, Texas — your action list

May rewards gardeners who work with the weather, not against it. Here's how to stay in step this month in Houston County, Texas.

Avg. last frost March 2
Avg. first frost November 23
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.6 hrs
June will be here before you know it — start on
  • First harvests: lemongrass

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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.

Houston County, Texas is in USDA Zone 8b. The average last spring frost is March 2 and the first fall frost is November 23, giving you a growing season of approximately 266 days.

At an elevation of 379 feet, Houston County receives approximately 59.2 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 94°F, providing good warmth for Lemongrass during the growing season. Sandy soil warms quickly in spring — great for early planting — 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.

Houston County, TX (Zone 8b) Long season
266 days
Last Spring Frost March 2
266 growing days
First Fall Frost November 23
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Houston County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.8-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (88 days to spare)
Start indoors: Dec 30 Transplant: Mar 3 🍅 Harvest: May 19 – Aug 18
Recommended (50%) ✓ Fits season (84 days to spare)
Start indoors: Jan 12 Transplant: Mar 16 🍅 Harvest: Jun 1 – Aug 31
Safe Start (90%) ✓ Fits season (78 days to spare)
Start indoors: Feb 5 Transplant: Apr 9 🍅 Harvest: Jun 25 – Sep 24

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 Houston County

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

Soil pH

Your soil pH (5.8–6.7) is within Lemongrass's preferred range (5.5–7.5).

Soil Texture

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

Organic Matter

Organic matter is low (1.8%). Add 2-3 inches of compost before planting Lemongrass.

How to Plant Lemongrass

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

Succession Planting Lemongrass

4
successive plantings in your 266-day season

Sow every 8.6 weeks. Last sowing by Jul 26 to harvest before frost.

Plant Water Budget

Plant needs
1.5″/week
Rainfall provides
0.9″/week
You supply
0.7″/week
Watering frequency 1-2 times/week
Season total 1,606 gal / 100 sq ft
Drought risk

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

Monthly Watering Guide for Lemongrass

Lemongrass needs approximately 1.5 inches of water per week (6.5" per month). Here's how your county's rainfall compares month by month.

Month Lemongrass Needs Rainfall You Supplement Action
Jan 1.7" 0" ❄️ Dormant
Feb 1.8" 0" ❄️ Dormant
Mar 6.5" 4.2" 2.3" 💧 Light watering
Apr 6.5" 5.9" 0.6" 💧 Light watering
May 6.5" 9.7" 0" ✅ Rainfall sufficient
Jun 6.5" 8.2" 0" ✅ Rainfall sufficient
Jul 6.5" 8.2" 0" ✅ Rainfall sufficient
Aug 6.5" 5.9" 0.6" 💧 Light watering
Sep 6.5" 5.6" 0.9" 💧 Light watering
Oct 6.5" 4.3" 2.2" 💧 Light watering
Nov 6.5" 2.1" 4.4" 🚿 Regular watering
Dec 1.7" 0" ❄️ Dormant

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

Lemongrass 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.

Lemongrass needs ~1,999 GDD — county provides 5,453 GDD Excellent fit

Lemongrass Planting Timeline — Houston County, TX

Lemongrass Planting Calendar

Activity When Date Range
Start Indoors January 12 Jan 12 – Jan 26
Transplant Outdoors March 16 Mar 16 – Mar 30
Direct Sow March 9 Mar 9 – Mar 30
Harvest June 1 Jun 1 – Aug 31

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1.5"/week · 1-2 times/week

📅 Days to Maturity

75–120 days

🧪 Soil pH

Needs 5.5–7.5 · Your soil: ideal

🗺️ USDA Zone

Zone 8b

📆 Growing Season

266 days in Houston County

Growing Tips for Lemongrass in Houston County

Direct sow Lemongrass outdoors after March 02 in Houston County when soil has warmed and frost danger has passed.

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

Common pests for Lemongrass in this region include corn earworm and corn borers. Use row covers early in the season and inspect plants weekly.

General growing tips

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

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lemongrass in Houston County, TX?

Houston County is in Zone 8b with an average last frost of March 2. Plan your Lemongrass planting based on this frost date — see the calendar above for exact timing.

What planting zone is Houston County, TX?

Houston County, Texas is in USDA Hardiness Zone 8b. The average last spring frost is March 2 and first fall frost is November 23.

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Your Houston County Garden Planner — Free

A 24-page printable planner built for Houston County (Zone 8b). 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 Houston County, TX. 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.