Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of figuring out when it's possible to plant platycodon is to use the USDA zone info for Fairfield.

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.

Platycodon do well in some cold which tells us that you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant platycodon in Fairfield 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 platycodon and expect a good harvest is probably August. Any later than that and your platycodon may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your platycodon indoors.

Last Frost Date

The average date of last frost is March 15 in Fairfield. You should expect an average low temperature of 10°F in the coldest months of winter.

Keep in mind that USDA zone info for Fairfield is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Fairfield last frost occurs after March 15 be ready to protect your platycodon if you have one of those late frosts.

USDA Zone Info for Fairfield

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°F

This means that on a really cold year, the coldest it will get is 10°F. On most years you should be prepared to experience lows near 15°F.

Plants to Grow in Fairfield

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