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.

In North Salt Lake you can estimate when it's possible to plant tall phlox by referring to the USDA zone info.

Planting Calendar for Tall Phlox

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

Tall Phlox are moderately cold tolerant which tells us that you can plant them earlier than other frost tender plants.

The earliest that you can plant tall phlox in North Salt Lake 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 tall phlox and expect a good harvest is probably September. Any later than that and your tall phlox may not have a chance to fully mature. You can get started a few weeks earlier by starting your tall phlox indoors.

Last Frost Date

In North Salt Lake the average date of last frost happens on April 15. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for North Salt Lake may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in North Salt Lake there is a last frost after April 15 so be sure to be ready to cover your tall phlox if you have one of those late frosts.

USDA Zone Info for North Salt Lake

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in North Salt Lake

You may be interested in your other planting guides for North Salt Lake.