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When to plant Cranberries in Harrison County, MO

Harrison County sits in cold Zone 5b. Plant Cranberries May 10–May 24 for the single annual harvest; the October 15 first frost closes the window.

When to Plant Cranberries in Harrison County, MO

Cranberries are low-growing, vine-like shrubs that produce tart red berries in fall. They grow in acidic, boggy conditions and are surprisingly easy to cultivate.

Harrison County, Missouri is in USDA Zone 5b. The average last spring frost is April 19 and the first fall frost is October 15, giving you a growing season of approximately 179 days.

At an elevation of 1,349 feet, Harrison County receives approximately 37.7 inches of rainfall annually with predominantly silt loam soil. Summer highs average 84°F, so choose short-season varieties of Cranberries to ensure they mature before fall.

Harrison County, MO (Zone 5b) Moderate season
179 days
Last Spring Frost April 19
179 growing days
First Fall Frost October 15

Harrison County Soil Profile

Soil Type

Silt Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Cranberries Planting Timeline — Harrison County, MO

Cranberries Planting Calendar

Activity When Date Range
Transplant Outdoors May 10 May 10 – May 24

· 36" apart · Rows 48" 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

High — keep soil consistently moist

📅 Days to Maturity

730–1095 days

🧪 Soil pH

Needs 4–5.5 · Your soil: N/A

🗺️ USDA Zone

Zone 5b

📆 Growing Season

179 days in Harrison County

Growing Tips for Harrison County

Create an acidic, consistently moist bed with peat moss. Cranberries do not need to be flooded to grow; flooding is only used for commercial harvesting. Mulch with sand in early spring.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Cranberries in Harrison County, MO?

Harrison County is in Zone 5b with an average last frost of April 19. Plan your Cranberries planting based on this frost date — see the calendar above for exact timing.

What planting zone is Harrison County, MO?

Harrison County, Missouri is in USDA Hardiness Zone 5b. The average last spring frost is April 19 and first fall frost is October 15.

When should I plant Cranberries in Harrison County, MO?

In Harrison County, MO, plant Cranberries after the last frost (around April 19) and before the first frost (around October 15). Best results when soil holds above 50°F.

What growing zone is Harrison County, MO for Cranberries?

Harrison County sits in USDA Zone 5b. Cranberries grows reliably in zones 2a through 7b, so it's a good fit here.

Can Cranberries grow in Harrison County's climate?

Yes — Cranberries grows well in Harrison County's temperate climate. Harrison County averages a 179-day frost-free season, with last frost around April 19 and first frost around October 15.

🌱

Your Harrison County Garden Planner — Free

A 22-page printable planner built for Harrison County (Zone 5b). 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 Harrison County, MO. Local conditions may vary. Last updated: July 2026.

Sources & credits

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