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When to Plant Bee Balm in Dolores County, CO

Dolores County, Colorado Zone 6b May

This month in Dolores County, Colorado

Welcome to May in Zone 6b. These are the moves that will have the biggest impact on your growing season.

Avg. last frost June 18
Avg. first frost September 8
Soil temp (4") 38°F
Watering Moderate
Pest pressure Low
Daylight 14 hrs
To set up a strong June, finish these tasks
  • Transplants going out: bee balm

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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.

Dolores County, Colorado is in USDA Zone 6b. The average last spring frost is June 18 and the first fall frost is September 8, giving you a growing season of approximately 82 days.

At an elevation of 7,506 feet, Dolores County receives approximately 23.1 inches of rainfall annually with predominantly loam soil. Summer highs average 85°F, providing good warmth for Bee Balm during the growing season.

Dolores County, CO (Zone 6b) Very short season
82 days
Last Spring Frost June 18
82 growing days
First Fall Frost September 8
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Dolores County Soil Profile

Soil Type

Loam

Soil pH

6.3-8.3

Drainage

Well Drained

Plant Planting Risk Windows

Early Start (70% safe) ✗ May not fit
Transplant: Jun 14 🍅 Harvest: Sep 13 – Nov 29
Recommended (50%) ✗ May not fit
Transplant: Jun 25 🍅 Harvest: Sep 24 – Dec 10
Safe Start (90%) ✗ May not fit
Transplant: Jul 6 🍅 Harvest: Oct 5 – Dec 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.

Soil Compatibility in Dolores County

How your county's soil matches Bee Balm's growing requirements.

Soil pH

Your soil pH (6.3–8.3) is more alkaline than Bee Balm prefers (6.0–7.0). Add sulfur or peat moss to lower pH.

Soil Texture

The loam soil in Dolores County is excellent for Bee Balm — good drainage, moisture retention, and nutrient holding capacity.

Organic Matter

Organic matter is moderate (2.8%). Annual compost additions will help Bee Balm.

How to Plant Bee Balm

0.5"
Planting Depth
8"
Between Plants
12"
Between Rows

Plant Water Budget

Plant needs
1.0″/week
Rainfall provides
1.2″/week
Watering frequency Natural rainfall sufficient
Season total 0 gal / 100 sq ft
Drought risk

Water stress score is 8/10 — consider drought-tolerant varieties and mulching

Monthly Watering Guide for Bee Balm

Bee Balm needs approximately 1 inches of water per week (4.3" per month). Here's how your county's rainfall compares month by month.

Month Bee Balm Needs Rainfall You Supplement Action
Jan 1.4" 0" ❄️ Dormant
Feb 1.2" 0" ❄️ Dormant
Mar 2.1" 0" ❄️ Dormant
Apr 2.6" 0" ❄️ Dormant
May 3" 0" ❄️ Dormant
Jun 4.3" 1.8" 2.5" 🚿 Regular watering
Jul 4.3" 1.9" 2.4" 🚿 Regular watering
Aug 4.3" 2.1" 2.2" 🚿 Regular watering
Sep 4.3" 2.1" 2.2" 🚿 Regular watering
Oct 2.2" 0" ❄️ Dormant
Nov 1.7" 0" ❄️ Dormant
Dec 1.2" 0" ❄️ Dormant

Water needs are for active growing months only (Jun–Sep in Dolores County). Supplement amounts are based on average rainfall — actual needs vary with temperature, soil, and mulching.

Bee Balm Heat Requirements (GDD)

What are Growing Degree Days (GDD)?

Growing Degree Days measure the total warmth your plants receive during the growing season. Think of it as a "heat bank" — every day above 50°F deposits warmth that helps your plants grow.

Each plant needs a certain amount of accumulated heat to mature. If your county provides more GDD than the plant needs, it's a great fit. If it's close, you may want to choose faster-maturing varieties or start seeds indoors to get a head start.

Bee Balm needs ~1,444 GDD — county provides 1,127 GDD May not mature

Bee Balm Planting Timeline — Dolores County, CO

Bee Balm Planting Calendar

Activity When Date Range
Transplant Outdoors June 25 Jun 25 – Jul 9
Harvest September 24 Sep 24 – Dec 10

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

Month-by-Month Timeline

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

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

1"/week · Natural rainfall sufficient

📅 Days to Maturity

90–120 days

🧪 Soil pH

Needs 6–7 · Your soil: too_alkaline

🗺️ USDA Zone

Zone 6b

📆 Growing Season

82 days in Dolores County

Growing Tips for Bee Balm in Dolores County

Direct sow Bee Balm outdoors after June 18 in Dolores County when soil has warmed and frost danger has passed.

Your 82.0-day growing season in Dolores County is tight for Bee Balm (90.0-120.0 days to maturity). Start indoors and choose early-maturing varieties.

Dolores County receives only 23" of rain annually. Bee Balm needs consistent moisture — install drip irrigation or water deeply 2-3 times per week.

General growing tips

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 Dolores County, CO?

Dolores County is in Zone 6b with an average last frost of June 18. Plan your Bee Balm planting based on this frost date — see the calendar above for exact timing.

What planting zone is Dolores County, CO?

Dolores County, Colorado is in USDA Hardiness Zone 6b. The average last spring frost is June 18 and first fall frost is September 8.

🌱

Your Dolores County Garden Planner — Free

A 24-page printable planner built for Dolores County (Zone 6b). 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 Dolores County, CO. Local conditions may vary. Last updated: May 2026.

Sources & credits

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