One of the first steps you take when you are getting a good idea 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.

By reviewing the USDA zone info for Foley you will be able to estimate when it's a good idea to plant dahlia.

Planting Calendar for Dahlia

Frost tolerance for dahlia:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant dahlia until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant dahlia in Foley is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant dahlia and expect a good harvest is probably August. If you wait any later than that and your dahlia may not have a chance to fully mature. Starting your dahlia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Foley. It might get as low as 15°F during the coldest months of winter.

Remember that USDA zone info for Foley may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Foley there is a last frost after March 15 so make sure that you are ready to protect your dahlia if you have one of those late frosts.

USDA Zone Info for Foley

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Foley

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