One of the best tools that you have as gardeners to help us determine 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.

You can determine when to plant dahlia in Calera by reviewing the USDA zone info.

Planting Calendar for Dahlia

Frost tolerance for dahlia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You really shouldn't plant dahlia until after all chance of frost has passed because they require warm weather.

The earliest that you can plant dahlia in Calera 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 really do well. 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 Calera. It might get as low as 10°F during the coldest months of winter.

Keep in mind that USDA zone info for Calera is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Calera you get surprised by a frost after March 15 be ready to protect your dahlia in the event of a surprise late frost.

USDA Zone Info for Calera

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 Calera

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