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.

One way of estimating when you can plant chrysanthemum is to check out the USDA zone info for Sartell.

Planting Calendar for Chrysanthemum

Frost tolerance for chrysanthemum:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's probably a bad idea to plant chrysanthemum until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant chrysanthemum in Sartell is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant chrysanthemum and expect a good harvest is probably August. Any later than that and your chrysanthemum may not have a chance to grow to maturity. If you are starting your chrysanthemum indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost is on May 15 in Sartell. In the coldest months of winter you can expect an average low temperature of -30°F.

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 Sartell and it will vary from year to year. Half of the time in Sartell there is a last frost after May 15 so make sure that you are prepared to protect your chrysanthemum if you have one of those late frosts.

USDA Zone Info for Sartell

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 Sartell

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