The USDA Zone info is a great tool for gardeners to help us figure out 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.

You should be able to estimate when it's possible to plant zinnia by reviewing the USDA zone info for Palatka.

Planting Calendar for Zinnia

Frost tolerance for zinnia:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant zinnia until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant zinnia in Palatka 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 zinnia and expect a good harvest is probably September. You probably don't want to wait any later than that or else your zinnia may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your zinnia indoors.

Last Frost Date

The average date of last frost is February 15 in Palatka. In the coldest months of winter you should expect an average low temperature of 20°F.

Always keep in mind that USDA zone info for Palatka is not always accurate and the actual date of last frost is different every year. Since half of the time in Palatka last frost occurs after February 15 be ready to protect your zinnia in the event of a surprise late frost.

USDA Zone Info for Palatka

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 Palatka

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