The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

One way of determining when to plant sunflowers is to examine the USDA zone info for High Point.

Planting Calendar for Sunflowers

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

Since sunflowers are not cold tolerant you really should wait until after the last frost before you can plant them.

The earliest that you can plant sunflowers in High Point 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 fully mature. You can get started a couple of weeks earlier by starting your sunflowers indoors.

Last Frost Date

The average date of last frost is April 15 in High Point. You should expect an average low temperature of 5°F in the coldest months of winter.

Keep in mind that USDA zone info for High Point is an average and the actual date of last frost is different every year. Half of the time in High Point last frost occurs after April 15 so make sure that you are prepared to protect your sunflowers in the event of a surprise late frost.

USDA Zone Info for High Point

Here is the info for USDA Zone 7b.

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

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in High Point

You may be interested in your other planting guides for High Point.