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When to Plant Broccoli Rabe in Swisher County, TX

Swisher County, Texas Zone 7a May

Your May game plan for Swisher County, Texas

Your garden in Swisher County, Texas is working on a schedule, even when you're not. Here's where you should be this May.

Avg. last frost April 8
Avg. first frost October 28
Soil temp (4") 61°F
Watering Critical
Pest pressure Moderate
Daylight 13.8 hrs
  1. Sow broccoli rabe in trays indoors

    A seed-starting mix and a sunny window (or a grow light) are all you need. Keep soil warm — around 70°F — for fast germination.

  2. Pick broccoli rabe

    Taste as you pick. The first ripe produce is the best feedback loop you'll get all season.

To set up a strong June, finish these tasks
  • First harvests: broccoli rabe

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Broccoli rabe (rapini) is a brassica grown for its slightly bitter, nutty-flavored florets, leaves, and stems. It is a staple in Italian cooking.

Swisher County, Texas is in USDA Zone 7a. The average last spring frost is April 8 and the first fall frost is October 28, giving you a growing season of approximately 203 days.

At an elevation of 3,057 feet, Swisher County receives approximately 48.3 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 98°F, so Broccoli Rabe may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring — great for early planting — but Broccoli Rabe will need more frequent watering and organic matter to retain nutrients.

Swisher County, TX (Zone 7a) Long season
203 days
Last Spring Frost April 8
203 growing days
First Fall Frost October 28
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Swisher County Soil Profile

Soil Type

Sandy Loam

Soil pH

7.6-8.7

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (127 days to spare)
Start indoors: Feb 27 Transplant: Apr 3 🍅 Harvest: May 15 – Jun 19
Recommended (50%) ✓ Fits season (126 days to spare)
Start indoors: Mar 4 Transplant: Apr 8 🍅 Harvest: May 20 – Jun 24
Safe Start (90%) ✓ Fits season (135 days to spare)
Start indoors: Mar 16 Transplant: Apr 20 🍅 Harvest: Jun 1 – Jul 6

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 Swisher County

How your county's soil matches Broccoli Rabe's growing requirements.

Soil pH

Your soil pH (7.6–8.7) is more alkaline than Broccoli Rabe prefers (6.0–7.5). Add sulfur or peat moss to lower pH.

Soil Texture

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

Organic Matter

Organic matter is low (1.1%). Add 2-3 inches of compost before planting Broccoli Rabe.

How to Plant Broccoli Rabe

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

Fall planting: Sow 10 weeks before your first frost date for a fall harvest.

Succession Planting Broccoli Rabe

6
successive plantings in your 203-day season

Sow every 4.6 weeks. Last sowing by Aug 29 to harvest before frost.

For a dedicated fall crop, sow by Aug 19.

Plant Water Budget

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

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Broccoli Rabe

Broccoli Rabe needs approximately 0.8 inches of water per week (3.5" per month). Here's how your county's rainfall compares month by month.

Month Broccoli Rabe Needs Rainfall You Supplement Action
Jan 3.5" 0" ❄️ Dormant
Feb 2.7" 0" ❄️ Dormant
Mar 2.5" 0" ❄️ Dormant
Apr 3.5" 1.9" 1.6" 💧 Light watering
May 3.5" 1.1" 2.4" 🚿 Regular watering
Jun 3.5" 1.5" 2" 🚿 Regular watering
Jul 3.5" 7.5" 0" ✅ Rainfall sufficient
Aug 3.5" 10.3" 0" ✅ Rainfall sufficient
Sep 3.5" 6.9" 0" ✅ Rainfall sufficient
Oct 3.5" 4" 0" ✅ Rainfall sufficient
Nov 2.8" 0" ❄️ Dormant
Dec 3.5" 0" ❄️ Dormant

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

Broccoli Rabe 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.

Broccoli Rabe needs ~1,175 GDD — county provides 4,770 GDD Excellent fit

Broccoli Rabe Planting Timeline — Swisher County, TX

Broccoli Rabe Planting Calendar

Activity When Date Range
Start Indoors March 4 Mar 4 – Mar 18
Transplant Outdoors April 8 Apr 8 – Apr 22
Direct Sow March 25 Mar 25 – Apr 15
Harvest May 20 May 20 – Jun 24
Fall Sowing August 19 Aug 19 – Sep 2

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

0.8"/week · Natural rainfall sufficient

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 7a

📆 Growing Season

203 days in Swisher County

Growing Tips for Broccoli Rabe in Swisher County

Direct sow Broccoli Rabe outdoors after April 08 in Swisher County when soil has warmed and frost danger has passed.

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

With summer highs reaching 98°F in Swisher County, provide afternoon shade for Broccoli Rabe and water deeply in the morning.

Your generous 203.0-day season in Swisher County allows multiple plantings of Broccoli Rabe. Sow every 20.0 days for continuous harvest.

Common pests for Broccoli Rabe in this region include cabbage worm and flea beetles. Use row covers early in the season and inspect plants weekly.

General growing tips

Direct sow in spring or fall. Harvest when small yellow flower buds first appear but before they open. Cut the main shoot first to encourage side shoots.

Companion Planting

Good Companions

Avoid Planting Near

  • Strawberries

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Broccoli Rabe in Swisher County, TX?

Swisher County is in Zone 7a with an average last frost of April 8. Plan your Broccoli Rabe planting based on this frost date — see the calendar above for exact timing.

What planting zone is Swisher County, TX?

Swisher County, Texas is in USDA Hardiness Zone 7a. The average last spring frost is April 8 and first fall frost is October 28.

🌱

Your Swisher County Garden Planner — Free

A 24-page printable planner built for Swisher County (Zone 7a). 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 Swisher 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.