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When to Plant Fava Beans in Colorado County, TX

Colorado County, Texas Zone 9a May

Your May planting checklist for Colorado County, Texas

If you only do a handful of things in the garden this May, make it these. They're sequenced around your zone's frost timing.

Avg. last frost February 26
Avg. first frost December 4
Soil temp (4") 74°F
Watering Low
Pest pressure High
Daylight 13.5 hrs
  1. It's harvest week for fava beans

    Don't tug. Use scissors or pruners for clean cuts — torn stems invite disease.

Coming up in June — start thinking about
  • First harvests: fava beans

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Fava beans are a cool-season legume with large, meaty beans inside thick pods. They fix nitrogen in the soil and are one of the oldest cultivated crops.

Colorado County, Texas is in USDA Zone 9a. The average last spring frost is February 26 and the first fall frost is December 4, giving you a growing season of approximately 281 days.

At an elevation of 87 feet, Colorado County receives approximately 70.5 inches of rainfall annually with predominantly clay soil. Summer highs average 90°F, providing good warmth for Fava Beans during the growing season. Clay soil retains moisture well for Fava Beans, but amend with compost to improve drainage and prevent root rot. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Fava Beans root diseases.

Colorado County, TX (Zone 9a) Year-round
281 days
Last Spring Frost February 26
281 growing days
First Fall Frost December 4
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Colorado County Soil Profile

Soil Type

Clay

Soil pH

7.3-7.8

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (165 days to spare)
Start indoors: Jan 15 Transplant: Feb 12 🍅 Harvest: Apr 30 – Jun 11
Recommended (50%) ✓ Fits season (162 days to spare)
Start indoors: Jan 29 Transplant: Feb 26 🍅 Harvest: May 14 – Jun 25
Safe Start (90%) ✓ Fits season (154 days to spare)
Start indoors: Feb 20 Transplant: Mar 20 🍅 Harvest: Jun 5 – Jul 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 Colorado County

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

Soil pH

Your soil pH (7.3–7.8) is more alkaline than Fava Beans prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

Heavy clay soil (42% clay) in Colorado County compacts easily and drains slowly. Amend with compost and avoid working soil when wet.

Drainage

Drainage is adequate for Fava Beans.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Fava Beans.

How to Plant Fava Beans

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

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

Succession Planting Fava Beans

4
successive plantings in your 281-day season

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

For a dedicated fall crop, sow by Oct 09.

Plant Water Budget

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

Monthly Watering Guide for Fava Beans

Fava Beans needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Fava Beans Needs Rainfall You Supplement Action
Jan 1.9" 0" ❄️ Dormant
Feb 4.3" 2.3" 2" 💧 Light watering
Mar 4.3" 4.5" 0" ✅ Rainfall sufficient
Apr 4.3" 8" 0" ✅ Rainfall sufficient
May 4.3" 10.9" 0" ✅ Rainfall sufficient
Jun 4.3" 10.3" 0" ✅ Rainfall sufficient
Jul 4.3" 9.3" 0" ✅ Rainfall sufficient
Aug 4.3" 8.7" 0" ✅ Rainfall sufficient
Sep 4.3" 5.5" 0" ✅ Rainfall sufficient
Oct 4.3" 4.8" 0" ✅ Rainfall sufficient
Nov 4.3" 2.3" 2" 💧 Light watering
Dec 4.3" 1.9" 2.4" 🚿 Regular watering

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

Fava 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.

Fava Beans needs ~1,531 GDD — county provides 4,935 GDD Excellent fit

Fava Beans Planting Timeline — Colorado County, TX

Fava Beans Planting Calendar

Activity When Date Range
Start Indoors January 29 Jan 29 – Feb 12
Transplant Outdoors February 26 Feb 26 – Mar 12
Direct Sow February 5 Feb 5 – Feb 26
Harvest May 14 May 14 – Jun 25
Fall Sowing October 9 Oct 9 – Oct 23

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

75–100 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 9a

📆 Growing Season

281 days in Colorado County

Growing Tips for Fava Beans in Colorado County

Direct sow Fava Beans outdoors after February 26 in Colorado County when soil has warmed and frost danger has passed.

With Colorado County's clay soil (42% clay), work in 3-4 inches of compost before planting Fava Beans. Avoid tilling when soil is wet to prevent compaction.

Common pests for Fava 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 as early as soil can be worked in spring. Pinch growing tips when pods begin to form to redirect energy and reduce aphid problems. Stake tall varieties.

Companion Planting

Good Companions

Avoid Planting Near

  • Onion
  • Garlic

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Fava Beans in Colorado County, TX?

Colorado County is in Zone 9a with an average last frost of February 26. Plan your Fava Beans planting based on this frost date — see the calendar above for exact timing.

What planting zone is Colorado County, TX?

Colorado County, Texas is in USDA Hardiness Zone 9a. The average last spring frost is February 26 and first fall frost is December 4.

🌱

Your Colorado County Garden Planner — Free

A 24-page printable planner built for Colorado 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 Colorado 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.