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When to Plant Lima Beans in Montgomery County, TX

Montgomery County, Texas Zone 9a May

Top priorities for Montgomery County, Texas gardeners in May

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

Avg. last frost February 18
Avg. first frost December 1
Soil temp (4") 71°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. Pick lima beans

    The more you pick, the more the plant produces. Letting fruit overripen tells the plant it's time to stop.

Looking ahead to June
  • First harvests: lima beans

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Lima beans are a warm-season legume producing large, creamy beans with a buttery texture. Both bush and pole varieties are available, with pole types yielding more.

Montgomery County, Texas is in USDA Zone 9a. The average last spring frost is February 18 and the first fall frost is December 1, giving you a growing season of approximately 286 days.

At an elevation of 180 feet, Montgomery County receives approximately 62.1 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96°F, so Lima Beans may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Lima Beans will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Lima Beans root diseases.

Montgomery County, TX (Zone 9a) Year-round
286 days
Last Spring Frost February 18
286 growing days
First Fall Frost December 1
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Montgomery County Soil Profile

Soil Type

Sandy Loam

Soil pH

5.5-6.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (182 days to spare)
Transplant: Feb 10 🍅 Harvest: Apr 14 – May 26
Recommended (50%) ✓ Fits season (181 days to spare)
Transplant: Feb 18 🍅 Harvest: Apr 22 – Jun 3
Safe Start (90%) ✓ Fits season (178 days to spare)
Transplant: Mar 9 🍅 Harvest: May 11 – Jun 22

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 Montgomery County

How your county's soil matches Lima Beans's growing requirements.

Soil pH

Your soil pH (5.5–6.7) overlaps with Lima Beans's range (6.0–7.0), though not a perfect match.

Soil Texture

Sandy soil in Montgomery County warms quickly in spring but drains fast. Lima Beans 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 Lima Beans.

How to Plant Lima Beans

1"
Planting Depth
15"
Between Plants
24"
Between Rows

Succession Planting Lima Beans

5
successive plantings in your 286-day season

Sow every 6.9 weeks. Last sowing by Sep 02 to harvest before frost.

Plant Water Budget

Plant needs
0.9″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft

Monthly Watering Guide for Lima Beans

Lima Beans needs approximately 0.9 inches of water per week (3.9" per month). Here's how your county's rainfall compares month by month.

Month Lima Beans Needs Rainfall You Supplement Action
Jan 1.6" 0" ❄️ Dormant
Feb 3.9" 2.1" 1.8" 💧 Light watering
Mar 3.9" 4.5" 0" ✅ Rainfall sufficient
Apr 3.9" 6.5" 0" ✅ Rainfall sufficient
May 3.9" 8.2" 0" ✅ Rainfall sufficient
Jun 3.9" 11" 0" ✅ Rainfall sufficient
Jul 3.9" 8" 0" ✅ Rainfall sufficient
Aug 3.9" 7.1" 0" ✅ Rainfall sufficient
Sep 3.9" 5.3" 0" ✅ Rainfall sufficient
Oct 3.9" 4.2" 0" ✅ Rainfall sufficient
Nov 3.9" 2" 1.9" 💧 Light watering
Dec 3.9" 1.6" 2.3" 🚿 Regular watering

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

Lima Beans 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.

Lima Beans needs ~1,650 GDD — county provides 6,314 GDD Excellent fit

Lima Beans Planting Timeline — Montgomery County, TX

Lima Beans Planting Calendar

Activity When Date Range
Direct Sow February 25 Feb 25 – Mar 18
Harvest April 29 Apr 29 – Jun 10

Plant 1" deep · 15" apart · Rows 24" apart

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.9"/week · Natural rainfall sufficient

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 6–7 · Your soil: acceptable

🗺️ USDA Zone

Zone 9a

📆 Growing Season

286 days in Montgomery County

Growing Tips for Lima Beans in Montgomery County

Direct sow Lima Beans outdoors after February 18 in Montgomery County when soil has warmed and frost danger has passed.

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

With summer highs reaching 96°F in Montgomery County, provide afternoon shade for Lima Beans and water deeply in the morning.

Common pests for Lima Beans in this region include bean beetles and aphids. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow after soil is thoroughly warm at 65F or above. Do not soak seeds before planting as they may crack. Harvest when pods are plump but still green for fresh limas.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic
  • Fennel

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Lima Beans in Montgomery County, TX?

Montgomery County is in Zone 9a with an average last frost of February 18. Plan your Lima Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Montgomery County, TX?

Montgomery County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 18 and first fall frost is December 1.

🌱

Your Montgomery County Garden Planner — Free

A 24-page printable planner built for Montgomery County (Zone 9a). 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 Montgomery 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.