Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant shasta daisys in Great Falls can be estimated by using the USDA zone info.

Planting Calendar for Shasta Daisys

Frost tolerance for shasta daisys:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since shasta daisys do well in moderate cold you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant shasta daisys in Great Falls is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant shasta daisys and expect a good harvest is probably August. If you wait any later than that and your shasta daisys may not have a chance to really do well. You can get started a little bit earlier by starting your shasta daisys indoors.

Last Frost Date

In Great Falls the average date of last frost happens on May 15. You should expect an average low temperature of -30°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Great Falls and it is different every year. Since half of the time in Great Falls you get surprised by a frost after May 15 be ready to cover your shasta daisys in the event of a surprise late frost.

USDA Zone Info for Great Falls

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Great Falls

You may be interested in your other planting guides for Great Falls.