One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

The USDA zone info for Tyrone should be used to figure out when it's the best time to plant zinnia.

Planting Calendar for Zinnia

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

You can not plant zinnia until after the last frost because they do not do well in cold weather.

The earliest that you can plant zinnia in Tyrone 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 zinnia and expect a good harvest is probably August. If you wait any later than that and your zinnia may not have a chance to really do well. Starting your zinnia indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Tyrone. It might get as low as 5°F during the coldest months of winter.

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

USDA Zone Info for Tyrone

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 Tyrone

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