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 Fairfield you can estimate when you can plant tall phlox by reviewing 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 one of those plants that can tolerate a little bit of cold weather which means that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant tall phlox in Fairfield 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. You probably don't want to wait any later than that or else your tall phlox may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your tall phlox indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Fairfield. You can expect an average low temperature of -15°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Fairfield is just an average and the actual date of last frost changes from year to year. Half of the time in Fairfield you get a frost after April 15 so always be ready to protect your tall phlox in the event of a surprise late frost.

USDA Zone Info for Fairfield

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 Fairfield

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