When to Plant Daffodils in Montana
Deer-proof, squirrel-proof, and virtually indestructible. Daffodils naturalize and multiply, coming back bigger each year.
The Short Answer
Montana Frost Dates
Your planting dates depend on which part of Montana you're in. Here are the frost date ranges by region:
| Region | Zones | Last Frost (Spring) | First Frost (Fall) |
|---|---|---|---|
| Western Montana | 4b, 5a, 5b | May 10 - May 30 | Sep 10 - Sep 30 |
| Central Montana | 3b, 4a, 4b | May 15 - Jun 5 | Sep 5 - Sep 20 |
| Eastern Montana | 3a, 3b, 4a | May 10 - Jun 1 | Sep 10 - Sep 25 |
Daffodils Planting Schedule for Montana
Western Montana (Zones 4b, 5a, 5b)
Average last frost: May 10 - May 30 · Average first frost: Sep 10 - Sep 30
Central Montana (Zones 3b, 4a, 4b)
Average last frost: May 15 - Jun 5 · Average first frost: Sep 5 - Sep 20
Eastern Montana (Zones 3a, 3b, 4a)
Average last frost: May 10 - Jun 1 · Average first frost: Sep 10 - Sep 25
Growing Daffodils in Montana
Daffodils in Montana's Climate
Your cold winters provide perfect chilling for daffodils. Plant bulbs in September-October and enjoy reliable spring bloom for decades. Daffodils are the most worry-free spring bulb — squirrels and deer leave them alone (the bulbs are toxic), and they multiply each year. One planting truly lasts a lifetime in cold climates.
Soil Considerations for Montana
Alkaline soils common. Thin, dry soils in east. Better soils in valleys. Wind erosion challenges.
Montana Climate & Growing Season
Short, intense growing season. Low humidity. Wide day-night temperature swings. Wind protection valuable. Daffodils can handle frost well, which is an advantage in Montana's climate. You can push planting dates earlier in spring and extend into fall.
Growing season length varies across Montana: Western Montana (4b, 5a, 5b) has a last frost around May 10 - May 30, while Eastern Montana (3a, 3b, 4a) sees frost end around May 10 - Jun 1. This difference matters for daffodils — adjust your planting dates to match your specific region.
Growing Tips
Let foliage die back naturally after blooming — it feeds next year's flowers. Plant at 3x the bulb's height deep.
Companion Planting
Plant daffodils alongside these companions for better growth:
The Bottom Line
Last reviewed: March 29, 2026