Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Ellettsville you can estimate when you can plant sunflowers by checking out the USDA zone info.

Planting Calendar for Sunflowers

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

Sunflowers 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 sunflowers in Ellettsville 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 sunflowers and expect a good harvest is probably August. You probably don't want to wait any later than that or else your sunflowers may not have a chance to really do well. Starting your sunflowers indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Ellettsville. It might get as low as -10°F during the coldest months of winter.

It's important to remember that USDA zone info for Ellettsville is just an average and the actual date of last frost will vary from year to year. Half of the time in Ellettsville you get surprised by a frost after April 15 so just be sure to be ready to cover your sunflowers if you have a surprise late frost.

USDA Zone Info for Ellettsville

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 Ellettsville

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