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

One way of determining when it's possible to plant zinnia is to consult the USDA zone info for North Palm Beach.

Planting Calendar for Zinnia

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

Since zinnia require warm weather you need to wait until after the last frost before you can plant them.

The earliest that you can plant zinnia in North Palm Beach is February. However, you really should wait until March 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. 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 January 31 in North Palm Beach. You should expect an average low temperature of 35°F in the coldest months of winter.

Just be sure to remember that the actual date of last frost is an average because it is based on the USDA zone info for North Palm Beach and it changes from year to year. Half of the time in North Palm Beach it frosts late in the year after January 31 so just be sure to be ready to cover your zinnia in the event of one of those late frosts.

USDA Zone Info for North Palm Beach

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in North Palm Beach

You may be interested in your other planting guides for North Palm Beach.