When to plant Comfrey in Garfield County, CO
Garfield County's 119-day season only supports one Comfrey planting per year. Sow between June 1 and June 15 for the best chance at full maturity before September 21.
When to Plant Comfrey in Garfield County, CO
Comfrey is a vigorous perennial herb valued as a dynamic accumulator of nutrients. Its leaves make excellent mulch, compost activator, and liquid fertilizer.
Garfield County, Colorado is in USDA Zone 6a. The average last spring frost is May 25 and the first fall frost is September 21, giving you a growing season of approximately 119 days.
At an elevation of 7,997 feet, Garfield County receives approximately 21.3 inches of rainfall annually with predominantly loam soil. Summer highs average 84°F, so choose short-season varieties of Comfrey to ensure they mature before fall.
Garfield County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Comfrey Planting Timeline — Garfield County, CO
Comfrey Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Transplant Outdoors | June 1 | Jun 1 – Jun 15 |
| Harvest | August 3 | Aug 3 – Oct 12 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | — |
| May | — |
| June | Transplant Outdoors |
| July | — |
| August | Harvest |
| September | Harvest |
| October | Harvest |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Partial Shade (3-6 hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
60–90 days
🧪 Soil pH
Needs 6–7 · Your soil: N/A
🗺️ USDA Zone
Zone 6a
📆 Growing Season
119 days in Garfield County
Growing Tips for Garfield County
Plant root cuttings 2 inches deep. Choose Bocking 14 variety to prevent self-seeding. Cut leaves 3-4 times per season for mulch or compost. Avoid planting near pathways as it spreads.
Companion Planting
Good Companions
Check more plant combinations with our Companion Planting Checker →
Comfrey in Other Locations
Frequently Asked Questions
When should I plant Comfrey in Garfield County, CO?
Garfield County is in Zone 6a with an average last frost of May 25. Plan your Comfrey planting based on this frost date — see the calendar above for exact timing.
What planting zone is Garfield County, CO?
Garfield County, Colorado is in USDA Hardiness Zone 6a. The average last spring frost is May 25 and first fall frost is September 21.
When should I plant Comfrey in Garfield County, CO?
In Garfield County, CO, plant Comfrey after the last frost (around May 25) and before the first frost (around September 21). Best results when soil holds above 50°F.
What growing zone is Garfield County, CO for Comfrey?
Garfield County sits in USDA Zone 6a. Comfrey grows reliably in zones 3a through 9b, so it's a good fit here.
Can Comfrey grow in Garfield County's climate?
Yes — Comfrey grows well in Garfield County's temperate climate. Garfield County averages a 119-day frost-free season, with last frost around May 25 and first frost around September 21.
Your Garfield County Garden Planner — Free
A 22-page printable planner built for Garfield 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.