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.

You should be able to figure out when to plant sunflowers by reviewing the USDA zone info for Homer.

Planting Calendar for Sunflowers

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

Since sunflowers are not cold tolerant it's important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant sunflowers in Homer 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. Any later than that and your sunflowers may not have a chance to grow to maturity. You can get started a little bit earlier by starting your sunflowers indoors.

Last Frost Date

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

Since the USDA zone info for Homer is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Homer you get surprised by a frost after April 15 so be sure to be ready to protect your sunflowers in the event of a late frost.

USDA Zone Info for Homer

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 Homer

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