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When to plant Chamomile in Valley County, MT

Aim to plant Chamomile in Valley County on or after May 6; the window stays open through May 27. Valley County's 131-day frost-free season gives you a single solid spring crop with a brief fall option. A second sowing from June 29 to July 13 extends the harvest into fall.

When to Plant Chamomile in Valley County, MT

Chamomile is a daisy-like herb famous for its calming, apple-scented tea. German chamomile is an annual while Roman chamomile is a perennial ground cover.

Valley County, Montana is in USDA Zone 4a. The average last spring frost is May 13 and the first fall frost is September 21, giving you a growing season of approximately 131 days.

At an elevation of 8,293 feet, Valley County receives approximately 23.2 inches of rainfall annually with predominantly loam soil. Summer highs average 80°F, so choose short-season varieties of Chamomile to ensure they mature before fall.

Valley County, MT (Zone 4a) Short season
131 days
Last Spring Frost May 13
131 growing days
First Fall Frost September 21

Valley County Soil Profile

Soil Type

Loam

Soil pH

6.0-7.0

Drainage

Well Drained

Chamomile Planting Timeline — Valley County, MT

Chamomile Planting Calendar

Activity When Date Range
Start Indoors April 1 Apr 1 – Apr 15
Transplant Outdoors May 6 May 6 – May 20
Direct Sow May 6 May 6 – May 27
Harvest July 8 Jul 8 – Sep 16
Fall Sowing June 29 Jun 29 – Jul 13

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

Month-by-Month Timeline

MonthActivities
January
February
March
April Start Indoors
May Transplant Outdoors Direct Sow
June Fall Sowing
July Fall Sowing Harvest
August Harvest
September Harvest
October
November
December

Growing Conditions

☀️ Sun

Full Sun (6-8+ hours)

💧 Water

Moderate — regular watering

📅 Days to Maturity

60–90 days

🧪 Soil pH

Needs 5.6–7.5 · Your soil: N/A

🗺️ USDA Zone

Zone 4a

📆 Growing Season

131 days in Valley County

Growing Tips for Valley County

Direct sow on the soil surface as seeds need light. Harvest flowers when petals begin to curl back. Chamomile self-sows freely and improves the health of nearby plants.

Companion Planting

Good Companions

Check more plant combinations with our Companion Planting Checker →

Frequently Asked Questions

When should I plant Chamomile in Valley County, MT?

Valley County is in Zone 4a with an average last frost of May 13. Plan your Chamomile planting based on this frost date — see the calendar above for exact timing.

What planting zone is Valley County, MT?

Valley County, Montana is in USDA Hardiness Zone 4a. The average last spring frost is May 13 and first fall frost is September 21.

When should I plant Chamomile in Valley County, MT?

In Valley County, MT, plant Chamomile after the last frost (around May 13) and before the first frost (around September 21). Best results when soil holds above 50°F.

What growing zone is Valley County, MT for Chamomile?

Valley County sits in USDA Zone 4a. Chamomile grows reliably in zones 3a through 9b, so it's a good fit here.

Can Chamomile grow in Valley County's climate?

Yes — Chamomile grows well in Valley County's temperate climate. Valley County averages a 131-day frost-free season, with last frost around May 13 and first frost around September 21.

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Your Valley County Garden Planner — Free

A 22-page printable planner built for Valley County (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 Valley County, MT. Local conditions may vary. Last updated: June 2026.

Sources & credits

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