One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of determining when to plant tall phlox is to look at the USDA zone info for Farmington.

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 do ok in moderate cold which tells us that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant tall phlox in Farmington 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 grow to maturity. You can get started a little bit earlier by starting your tall phlox indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Farmington. It might get as low as 0°F during the coldest months of winter.

Always keep in mind that USDA zone info for Farmington is just an average and the actual date of last frost changes from year to year. Since half of the time in Farmington you get a frost after April 15 be ready to protect your tall phlox in the event of one of those late frosts.

USDA Zone Info for Farmington

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Farmington

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