Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to figure out when it's possible to plant chrysanthemum by using the USDA zone info for Le Mars.

Planting Calendar for Chrysanthemum

Frost tolerance for chrysanthemum:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's probably a bad idea to plant chrysanthemum until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant chrysanthemum in Le Mars is April. However, you really should wait until May 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. You probably don't want to wait any later than that or else your chrysanthemum may not have a chance to grow to maturity. Starting your chrysanthemum indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Le Mars the average date of last frost happens on April 15. You can expect an average low temperature of -20°F in the coldest months of winter.

Since the USDA zone info for Le Mars is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Le Mars last frost occurs after April 15 be ready to protect your chrysanthemum if you have one of those late frosts.

USDA Zone Info for Le Mars

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Le Mars

You may be interested in your other planting guides for Le Mars.