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When to Plant Bee Balm in Regina, SK

Bee balm is a native perennial herb with shaggy, scarlet flower heads that attract hummingbirds, bees, and butterflies. Its leaves make an aromatic tea reminiscent of Earl Grey.

Regina, Saskatchewan is in USDA Zone 4a. The average last spring frost is May 16 and the first fall frost is October 3, giving you a growing season of approximately 140 days.

At an elevation of 1,893 feet, Regina receives approximately 15.4 inches of rainfall annually with predominantly dark brown chernozem soil. Summer highs average 70°F, so choose short-season varieties of Bee Balm to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Bee Balm successfully. Mulch heavily to conserve soil moisture.

Regina, SK (Zone 4a) Short season
140 days
Last Spring Frost May 16
140 growing days
First Fall Frost October 3

Regina Soil Profile

Soil Type

Dark Brown Chernozem

Soil pH

6.0-7.0

Drainage

Well Drained

Bee Balm Planting Timeline — Regina, SK

Bee Balm Planting Calendar

Activity When Date Range
Transplant Outdoors May 23 May 23 – Jun 6
Harvest August 22 Aug 22 – Oct 17

Plant 0.5" deep · 8" apart · Rows 12" apart

Month-by-Month Timeline

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

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7 · Your soil: N/A

🗺️ USDA Zone

Zone 4a

📆 Growing Season

140 days in Regina

Growing Tips for Regina

Start from seed, divisions, or transplants. Provide good air circulation to prevent powdery mildew. Deadhead spent flowers for reblooming. Divide clumps every 3 years.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Bee Balm in Regina, SK?

Regina is in Zone 4a with an average last frost of May 16. Plan your Bee Balm planting based on this frost date — see the calendar above for exact timing.

What planting zone is Regina, SK?

Regina, Saskatchewan is in USDA Hardiness Zone 4a. The average last spring frost is May 16 and first fall frost is October 3.

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Your Regina Garden Planner — Free

A 22-page printable planner built for Regina (Zone 4a). 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 Regina, SK. Local conditions may vary. Last updated: August 2026.

Sources & credits

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