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

The first opportunity to plant zinnia in League City should be estimated by referring to the USDA zone info.

Planting Calendar for Zinnia

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

Zinnia do not do well in cold weather which tells us that you really should wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant zinnia in League City 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. If you wait any later than that and your zinnia may not have a chance to really do well. You can get started a little bit earlier by starting your zinnia indoors.

Last Frost Date

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

Remember that USDA zone info for League City may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in League City last frost occurs after February 15 be ready to protect your zinnia in the event of one of those late frosts.

USDA Zone Info for League City

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 League City

You may be interested in your other planting guides for League City.