Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Myrtle Beach it's a good idea 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.

Dahlia are not cold tolerant which means that you have to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant dahlia in Myrtle Beach 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. Any later than that and your dahlia may not have a chance to grow to maturity. Starting your dahlia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on March 15 in Myrtle Beach. You should expect an average low temperature of 15°F in the coldest months of winter.

Remember that USDA zone info for Myrtle Beach is not always accurate and the actual date of last frost changes from year to year. Since half of the time in Myrtle Beach you get a frost after March 15 be ready to protect your dahlia if you have a surprise late frost.

USDA Zone Info for Myrtle Beach

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 Myrtle Beach

You may be interested in your other planting guides for Myrtle Beach.