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When to Plant Bee Balm in St. Tammany Parish, LA

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.

St. Tammany Parish, Louisiana is in USDA Zone 8b. The average last spring frost is February 20 and the first fall frost is November 23, giving you a growing season of approximately 276 days.

At an elevation of 321 feet, St. Tammany Parish receives approximately 57.9 inches of rainfall annually with predominantly sandy loam soil. Summer highs average 96ยฐF, so Bee Balm may need afternoon shade and extra watering during peak heat. Sandy soil warms quickly in spring โ€” great for early planting โ€” but Bee Balm will need more frequent watering and organic matter to retain nutrients. Ample rainfall means less supplemental watering, but ensure good drainage to prevent Bee Balm root diseases.

St. Tammany Parish, LA (Zone 8b) Year-round
276 days
Last Spring Frost February 20
276 growing days
First Fall Frost November 23

St. Tammany Parish Soil Profile

Soil Type

Sandy Loam

Soil pH

4.8-6.1

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✓ Fits season (114 days to spare)
Transplant: Feb 6 🍅 Harvest: May 8 – Jul 24
Recommended (50%) ✓ Fits season (101 days to spare)
Transplant: Feb 27 🍅 Harvest: May 29 – Aug 14
Safe Start (90%) ✓ Fits season (88 days to spare)
Transplant: Apr 6 🍅 Harvest: Jul 6 – Sep 21

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.

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
0.9″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Bee Balm needs ~2,310 GDD — county provides 6,094 GDD Excellent fit

Bee Balm Planting Timeline โ€” St. Tammany Parish, LA

Bee Balm Planting Calendar

Activity When Date Range
Transplant Outdoors February 27 Feb 27 โ€“ Mar 13
Harvest May 29 May 29 โ€“ Aug 14

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

Month-by-Month Timeline

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

Growing Conditions

Sun

Full Sun (6-8+ hours)

Water

Moderate โ€” regular watering

Days to Maturity

90โ€“120 days

Soil pH

6 โ€“ 7

USDA Zone

Zone 8b

Growing Season

276 days

Growing Tips for St. Tammany Parish

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

Level Up Your Garden

Frequently Asked Questions

When should I plant Bee Balm in St. Tammany Parish, LA?

St. Tammany Parish is in Zone 8b with an average last frost of February 20. Plan your Bee Balm planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is St. Tammany Parish, LA?

St. Tammany Parish, Louisiana is in USDA Hardiness Zone 8b. The average last spring frost is February 20 and first fall frost is November 23.

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Plan Your Garden with Confidence

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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 St. Tammany Parish, LA. Local conditions may vary. Last updated: April 2026.