One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

In Muskego you can figure out when to plant phlox by referring to the USDA zone info.

Planting Calendar for Phlox

Frost tolerance for phlox:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Phlox are moderately cold tolerant which means that you can get them planted earlier than more sensitive plants.

The earliest that you can plant phlox in Muskego 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 phlox and expect a good harvest is probably September. If you wait any later than that and your phlox may not have a chance to really do well. You can get started a few weeks earlier by starting your phlox indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Muskego is just an average and the actual date of last frost will vary from year to year. Half of the time in Muskego you get surprised by a frost after April 15 so make sure that you are prepared to protect your phlox if you have a surprise late frost.

USDA Zone Info for Muskego

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Muskego

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