Blog

When to plant Blackberries in Champaign County, IL

In Champaign County, Blackberries is a single-season spring crop — there's no second fall window. Plant May 5–May 19 for an 365–730-day harvest, finishing well before the October 19 first frost.

When to Plant Blackberries in Champaign County, IL

Blackberries

Blackberries are vigorous bramble fruits that produce sweet-tart berries on thorny or thornless canes. They are prolific producers and relatively low-maintenance once established.

Champaign County, Illinois is in USDA Zone 6a. The average last spring frost is April 14 and the first fall frost is October 19, giving you a growing season of approximately 188 days.

At an elevation of 1,215 feet, Champaign County receives approximately 38.9 inches of rainfall annually with predominantly silt loam soil. Summer highs average 87°F, providing good warmth for Blackberries during the growing season.

Champaign County, IL (Zone 6a) Moderate season
188 days
Last Spring Frost April 14
188 growing days
First Fall Frost October 19

Champaign County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Blackberries Planting Timeline — Champaign County, IL

Blackberries Planting Calendar

Activity When Date Range
Transplant Outdoors May 5 May 5 – May 19

· 24" apart · Rows 72" apart

Month-by-Month Timeline

MonthActivities
January
February
March
April
May Transplant Outdoors
June
July
August
September
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

365–730 days

🧪 Soil pH

Needs 5.5–7 · Your soil: N/A

🗺️ USDA Zone

Zone 6a

📆 Growing Season

188 days in Champaign County

Growing Tips for Champaign County

Plant bare-root canes in spring. Provide a sturdy trellis system. Prune out spent fruiting canes after harvest. New canes fruit in their second year (floricanes).

Companion Planting

Good Companions

Avoid Planting Near

  • Tomatoes
  • Peppers

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Blackberries in Champaign County, IL?

Champaign County is in Zone 6a with an average last frost of April 14. Plan your Blackberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Champaign County, IL?

Champaign County, Illinois is in USDA Hardiness Zone 6a. The average last spring frost is April 14 and first fall frost is October 19.

When should I plant Blackberries in Champaign County, IL?

In Champaign County, IL, plant Blackberries after the last frost (around April 14) and before the first frost (around October 19). Best results when soil holds above 50°F.

What growing zone is Champaign County, IL for Blackberries?

Champaign County sits in USDA Zone 6a. Blackberries grows reliably in zones 5a through 10b, so it's a good fit here.

Can Blackberries grow in Champaign County's climate?

Yes — Blackberries grows well in Champaign County's temperate climate. Champaign County averages a 188-day frost-free season, with last frost around April 14 and first frost around October 19.

🌱

Your Champaign County Garden Planner — Free

A 22-page printable planner built for Champaign 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 Champaign County, IL. 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.