The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Powell you will be able to determine when it's possible to plant mecardonia.

Planting Calendar for Mecardonia

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

Since mecardonia are not cold tolerant it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant mecardonia in Powell 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 really do well. You can get started a few weeks earlier by starting your mecardonia indoors.

Last Frost Date

The average date of last frost is May 15 in Powell. It might get as low as -25°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Powell and it can change quite a bit from year to year. Since half of the time in Powell it frosts late in the year after May 15 be ready to cover your mecardonia if you have a late frost.

USDA Zone Info for Powell

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 Powell

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