Blog

When to plant Broccoli Rabe in Johnson County, IN

For Johnson County, gardeners: plant Broccoli Rabe March 29 through April 19 once soil reads 50°F. A second sowing from August 13 to August 27 extends the harvest into fall.

When to Plant Broccoli Rabe in Johnson County, IN

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

Johnson County, Indiana is in USDA Zone 6a. The average last spring frost is April 12 and the first fall frost is October 22, giving you a growing season of approximately 193 days.

At an elevation of 1,324 feet, Johnson County receives approximately 36.4 inches of rainfall annually with predominantly silt loam soil. Summer highs average 90°F, providing good warmth for Broccoli Rabe during the growing season.

Johnson County, IN (Zone 6a) Moderate season
193 days
Last Spring Frost April 12
193 growing days
First Fall Frost October 22

Johnson County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Broccoli Rabe Planting Timeline — Johnson County, IN

Broccoli Rabe Planting Calendar

Activity When Date Range
Start Indoors March 8 Mar 8 – Mar 22
Transplant Outdoors April 12 Apr 12 – Apr 26
Direct Sow March 29 Mar 29 – Apr 19
Harvest May 24 May 24 – Jun 28
Fall Sowing August 13 Aug 13 – Aug 27

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
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

40–60 days

🧪 Soil pH

Needs 6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

193 days in Johnson County

Growing Tips for Johnson County

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 Johnson County, IN?

Johnson County is in Zone 6a with an average last frost of April 12. Plan your Broccoli Rabe planting based on this frost date — see the calendar above for exact timing.

What planting zone is Johnson County, IN?

Johnson County, Indiana is in USDA Hardiness Zone 6a. The average last spring frost is April 12 and first fall frost is October 22.

When should I plant Broccoli Rabe in Johnson County, IN?

In Johnson County, IN, plant Broccoli Rabe after the last frost (around April 12) and before the first frost (around October 22). Best results when soil holds above 50°F.

What growing zone is Johnson County, IN for Broccoli Rabe?

Johnson County sits in USDA Zone 6a. Broccoli Rabe grows reliably in zones 2a through 10b, so it's a good fit here.

Can Broccoli Rabe grow in Johnson County's climate?

Yes — Broccoli Rabe grows well in Johnson County's temperate climate. Johnson County averages a 193-day frost-free season, with last frost around April 12 and first frost around October 22.

🌱

Your Johnson County Garden Planner — Free

A 22-page printable planner built for Johnson County (Zone 6a). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.

Instant PDF download. No spam, unsubscribe any time.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Johnson County, IN. Local conditions may vary. Last updated: June 2026.

Sources & credits

Every number on this page traces back to a primary horticulture or government data source. Click through to verify.