One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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 figuring out when to plant tall phlox is to consult the USDA zone info for Locust Grove.

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 can survive in some cold which tells us that you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant tall phlox in Locust Grove 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. If you wait any later than that and your tall phlox may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your tall phlox indoors.

Last Frost Date

On average the last frost is on March 15 in Locust Grove. It might get as low as 10°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Locust Grove and it can change quite a bit from year to year. Since half of the time in Locust Grove there is a last frost after March 15 be ready to cover your tall phlox if you have one of those late frosts.

USDA Zone Info for Locust Grove

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

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

Plants to Grow in Locust Grove

You may be interested in your other planting guides for Locust Grove.