The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Polson can be looked at to determine when it's a good idea to plant lantana.

Planting Calendar for Lantana

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

You can not plant lantana until after the last frost because they require warm weather.

The earliest that you can plant lantana in Polson 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 lantana and expect a good harvest is probably August. You probably don't want to wait any later than that or else your lantana may not have a chance to fully mature. You can get started a few weeks earlier by starting your lantana indoors.

Last Frost Date

The average date of last frost is April 15 in Polson. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Polson may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Polson you get a frost after April 15 be ready to protect your lantana in the event of a surprise late frost.

USDA Zone Info for Polson

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Polson

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