When to plant Dill in Phillips County, MT
In Phillips County, plant Dill in spring between May 11 and June 1, once soil temps hold above 50°F. Phillips County's last frost averages May 18, so be cautious and check the 10-day forecast before planting tender crops. For a fall crop, sow between June 29 and July 13 — roughly 40–60 days before the first frost on September 21.
When to Plant Dill in Phillips County, MT
Dill is a feathery annual herb with aromatic leaves and seeds. Its fine foliage and umbrella-shaped flower heads attract beneficial insects to the garden.
Phillips County, Montana is in USDA Zone 3b. The average last spring frost is May 18 and the first fall frost is September 21, giving you a growing season of approximately 126 days.
At an elevation of 6,886 feet, Phillips County receives approximately 19 inches of rainfall annually with predominantly loam soil. Summer highs average 80°F, so choose short-season varieties of Dill to ensure they mature before fall. With low rainfall, drip irrigation is essential for growing Dill successfully. Mulch heavily to conserve soil moisture.
Phillips County Soil Profile
Soil Type
Loam
Soil pH
6.0-7.0
Drainage
Well Drained
Dill Planting Timeline — Phillips County, MT
Dill Planting Calendar
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | April 6 | Apr 6 – Apr 20 |
| Transplant Outdoors | May 11 | May 11 – May 25 |
| Direct Sow | May 11 | May 11 – Jun 1 |
| Harvest | June 22 | Jun 22 – Aug 24 |
| Fall Sowing | June 29 | Jun 29 – Jul 13 |
Plant 0.5" deep · 8" apart · Rows 12" apart
Month-by-Month Timeline
| Month | Activities |
|---|---|
| January | — |
| February | — |
| March | — |
| April | Start Indoors |
| May | Transplant Outdoors Direct Sow |
| June | Direct Sow Fall Sowing Harvest |
| July | Fall Sowing Harvest |
| August | Harvest |
| September | — |
| October | — |
| November | — |
| December | — |
Growing Conditions
☀️ Sun
Full Sun (6-8+ hours)
💧 Water
Moderate — regular watering
📅 Days to Maturity
40–60 days
🧪 Soil pH
Needs 5.5–7 · Your soil: N/A
🗺️ USDA Zone
Zone 3b
📆 Growing Season
126 days in Phillips County
Growing Tips for Phillips County
Direct sow in spring as dill has a taproot and dislikes transplanting. Succession sow for continuous leaf harvest. Allow some plants to flower for seeds and to attract beneficial insects.
Companion Planting
Good Companions
Avoid Planting Near
Check more plant combinations with our Companion Planting Checker →
Dill in Other Locations
Frequently Asked Questions
When should I plant Dill in Phillips County, MT?
Phillips County is in Zone 3b with an average last frost of May 18. Plan your Dill planting based on this frost date — see the calendar above for exact timing.
What planting zone is Phillips County, MT?
Phillips County, Montana is in USDA Hardiness Zone 3b. The average last spring frost is May 18 and first fall frost is September 21.
When should I plant Dill in Phillips County, MT?
In Phillips County, MT, plant Dill after the last frost (around May 18) and before the first frost (around September 21). Best results when soil holds above 50°F.
What growing zone is Phillips County, MT for Dill?
Phillips County sits in USDA Zone 3b. Dill grows reliably in zones 2a through 11b, so it's a good fit here.
Can Dill grow in Phillips County's climate?
Yes — Dill grows well in Phillips County's temperate climate. Phillips County averages a 126-day frost-free season, with last frost around May 18 and first frost around September 21.
Your Phillips County Garden Planner — Free
A 22-page printable planner built for Phillips County (Zone 3b). Planting dates, a month-by-month schedule, harvest log, seed inventory, and succession charts — all dialed in for your exact growing season.