One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Duluth you can determine when it's a good idea to plant shasta daisys by reviewing 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.

You can plant shasta daisys a little bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant shasta daisys in Duluth 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. Starting your shasta daisys indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is May 15 in Duluth. You can expect an average low temperature of -30°F in the coldest months of winter.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Duluth and it can change quite a bit from year to year. Since half of the time in Duluth last frost occurs after May 15 be ready to cover your shasta daisys in the event of a surprise late frost.

USDA Zone Info for Duluth

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 Duluth

You may be interested in your other planting guides for Duluth.