The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By looking at the USDA zone info for Safety Harbor you should be able to figure out when to plant platycodon.

Planting Calendar for Platycodon

Frost tolerance for platycodon:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since platycodon are barely cold tolerant you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant platycodon in Safety Harbor 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 platycodon and expect a good harvest is probably September. Any later than that and your platycodon may not have a chance to fully mature. You can get started a few weeks earlier by starting your platycodon indoors.

Last Frost Date

On average all chance of frost has passed is on January 31 in Safety Harbor. You can expect an average low temperature of 30°F in the coldest months of winter.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Safety Harbor and it will vary from year to year. Half of the time in Safety Harbor last frost occurs after January 31 so make sure that you are prepared to cover your platycodon if you have one of those late frosts.

USDA Zone Info for Safety Harbor

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Safety Harbor

You may be interested in your other planting guides for Safety Harbor.