One of the first steps you take when you are estimating 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.

You can estimate when you can plant sunflowers in Freeport by looking at the USDA zone info.

Planting Calendar for Sunflowers

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

You really shouldn't plant sunflowers until after the last frost because they do not do well in cold weather.

The earliest that you can plant sunflowers in Freeport is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant sunflowers and expect a good harvest is probably September. If you wait any later than that and your sunflowers may not have a chance to fully mature. If you are starting your sunflowers indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Freeport. You can expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that USDA zone info for Freeport is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Freeport it frosts late in the year after February 15 so make sure that you are ready to cover your sunflowers if you have a surprise late frost.

USDA Zone Info for Freeport

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Freeport

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