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

A way of estimating when it's a good idea to plant sunflowers is to refer to the USDA zone info for Waveland.

Planting Calendar for Sunflowers

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

Sunflowers are not cold tolerant which means that you need to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant sunflowers in Waveland 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 grow to maturity. 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 Waveland. You should expect an average low temperature of 20°F in the coldest months of winter.

Since the USDA zone info for Waveland is an average the actual date of last frost will vary from year to year. Since half of the time in Waveland you get surprised by a frost after February 15 be ready to protect your sunflowers if you have a surprise late frost.

USDA Zone Info for Waveland

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Waveland

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