The USDA Zone info is a great tool for gardeners to help us determine 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 first opportunity to plant radishes in Whitefish can be estimated by referring to the USDA zone info.

Planting Calendar for Radishes

Frost tolerance for radishes:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Radishes do well in cold which tells us that you can plant them much earlier than plants that are more sensitive to the cold.

The earliest that you can plant radishes in Whitefish is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant radishes and expect a good harvest is probably September. You probably don't want to wait any later than that or else your radishes may not have a chance to really do well. Starting your radishes indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Whitefish. In the coldest months of winter you should expect an average low temperature of -20°F.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Whitefish and it can change quite a bit from year to year. Half of the time in Whitefish it frosts late in the year after April 15 so just be sure to be ready to protect your radishes if you have a surprise late frost.

USDA Zone Info for Whitefish

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Whitefish

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