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

It's possible to estimate when it's a good idea to plant flowering maple by reviewing the USDA zone info for Rockville.

Planting Calendar for Flowering Maple

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

You really shouldn't plant flowering maple until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant flowering maple in Rockville 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 flowering maple and expect a good harvest is probably August. Any later than that and your flowering maple may not have a chance to fully mature. Starting your flowering maple indoors is a great way to get them started a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Rockville. In the coldest months of winter you can expect an average low temperature of 0°F.

Since the USDA zone info for Rockville may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Rockville you get surprised by a frost after April 15 so just be sure to be ready to protect your flowering maple in the event of one of those late frosts.

USDA Zone Info for Rockville

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Rockville

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