One of the first steps you take when you are making a decision about your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of estimating when it's possible to plant dahlias is to refer to the USDA zone info for Burley.

Planting Calendar for Dahlias

Frost tolerance for dahlias:	Not tolerant of frost.
When to plant:	After the last frost has passed.

Since dahlias require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant dahlias in Burley 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 dahlias and expect a good harvest is probably August. If you wait any later than that and your dahlias may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your dahlias indoors.

Last Frost Date

The average date of last frost is April 15 in Burley. You should expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Burley is an average and the actual date of last frost changes from year to year. Since half of the time in Burley you get surprised by a frost after April 15 be ready to protect your dahlias in the event of a surprise late frost.

USDA Zone Info for Burley

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Burley

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