One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of making a decision about when to plant flowering maple is to look at the USDA zone info for Merrill.

Planting Calendar for Flowering Maple

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

Flowering Maple are not cold tolerant which tells us that you need to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant flowering maple in Merrill 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 flowering maple and expect a good harvest is probably August. You probably don't want to wait any later than that or else your flowering maple may not have a chance to really do well. Starting your flowering maple 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 Merrill. You should expect an average low temperature of -30°F in the coldest months of winter.

Remember that USDA zone info for Merrill is an average and the actual date of last frost is different every year. Since half of the time in Merrill you get surprised by a frost after May 15 be ready to cover your flowering maple in the event of one of those late frosts.

USDA Zone Info for Merrill

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 Merrill

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