One of the first steps you take when you are estimating your gardening schedule is find your 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.

You can determine when it's the best time to plant mecardonia in Owatonna by using the USDA zone info.

Planting Calendar for Mecardonia

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

Since mecardonia do not do well in cold weather you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant mecardonia in Owatonna 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. If you wait any later than that and your mecardonia may not have a chance to fully mature. If you are starting your mecardonia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Owatonna the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Owatonna and it can change quite a bit from year to year. Half of the time in Owatonna there is a last frost after May 15 so make sure that you are prepared to protect your mecardonia if you have one of those late frosts.

USDA Zone Info for Owatonna

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Owatonna

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