One of the first steps you take when you are making a decision about 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.

It's a good idea to figure out when it's possible to plant mecardonia by referring to the USDA zone info for Princeton.

Planting Calendar for Mecardonia

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

It's a bad idea to plant mecardonia until after the last frost because they require warm weather.

The earliest that you can plant mecardonia in Princeton 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 mecardonia and expect a good harvest is probably August. You probably don't want to wait any later than that or else your mecardonia may not have a chance to fully mature. Starting your mecardonia indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on May 15 in Princeton. You should expect an average low temperature of -30°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Princeton and it will vary from year to year. Half of the time in Princeton you get a frost after May 15 so be sure to be ready to protect your mecardonia if you have a late frost.

USDA Zone Info for Princeton

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 Princeton

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