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When to Plant Chamomile in Bennett County, SD

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.

Bennett County, South Dakota is in USDA Zone 4b. The average last spring frost is May 11 and the first fall frost is October 4, giving you a growing season of approximately 146 days.

At an elevation of 1,025 feet, Bennett County receives approximately 24.9 inches of rainfall annually with predominantly loam soil. Summer highs average 84ยฐF, so choose short-season varieties of Chamomile to ensure they mature before fall.

Bennett County, SD (Zone 4b) Short season
146 days
Last Spring Frost May 11
146 growing days
First Fall Frost October 4

Bennett County Soil Profile

Soil Type

Loam

Soil pH

6.2-7.6

Drainage

Well Drained

Monthly Watering Guide for Chamomile

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

Month Chamomile Needs Rainfall You Supplement Action
Jan โ€” 1.6" 0" โ„๏ธ Dormant
Feb โ€” 1.4" 0" โ„๏ธ Dormant
Mar โ€” 2.1" 0" โ„๏ธ Dormant
Apr โ€” 2.9" 0" โ„๏ธ Dormant
May 4.3" 3.3" 1" ๐Ÿ’ง Light watering
Jun 4.3" 1.6" 2.7" ๐Ÿšฟ Regular watering
Jul 4.3" 2.2" 2.1" ๐Ÿ’ง Light watering
Aug 4.3" 2.5" 1.8" ๐Ÿ’ง Light watering
Sep 4.3" 2.1" 2.2" ๐Ÿšฟ Regular watering
Oct 4.3" 2" 2.3" ๐Ÿšฟ Regular watering
Nov โ€” 1.8" 0" โ„๏ธ Dormant
Dec โ€” 1.4" 0" โ„๏ธ Dormant

Water needs are for active growing months only (Mayโ€“Oct in Bennett County). Supplement amounts are based on average rainfall โ€” actual needs vary with temperature, soil, and mulching.

Chamomile Planting Timeline โ€” Bennett County, SD

Chamomile Planting Calendar

Activity When Date Range
Start Indoors March 30 Mar 30 โ€“ Apr 13
Transplant Outdoors May 4 May 4 โ€“ May 18
Direct Sow May 4 May 4 โ€“ May 25
Harvest July 6 Jul 6 โ€“ Sep 14
Fall Sowing July 12 Jul 12 โ€“ Jul 26

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

Month-by-Month Timeline

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

Growing Conditions

โ˜€๏ธ Sun

Full Sun (6-8+ hours)

๐Ÿ’ง Water

Moderate โ€” regular watering

๐Ÿ“… Days to Maturity

60โ€“90 days

๐Ÿงช Soil pH

Needs 5.6โ€“7.5 ยท Your soil: N/A

๐Ÿ—บ๏ธ USDA Zone

Zone 4b

๐Ÿ“† Growing Season

146 days in Bennett County

Growing Tips for Bennett 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 Bennett County, SD?

Bennett County is in Zone 4b with an average last frost of May 11. Plan your Chamomile planting based on this frost date โ€” see the calendar above for exact timing.

What planting zone is Bennett County, SD?

Bennett County, South Dakota is in USDA Hardiness Zone 4b. The average last spring frost is May 11 and first fall frost is October 4.

๐ŸŒฑ

Plan Your Garden with Confidence

Get our free Garden Planner โ€” designed to help Bennett County gardeners in Zone 4b organize planting dates, track what's growing, and never miss a planting window.

Get Your Free Garden Planner →

Free download. Plan your entire garden season in minutes.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Frost dates are based on 50% probability averages for Bennett County, SD. Local conditions may vary. Last updated: April 2026.