Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Franklin you can determine when it's the best time to plant iberis by checking out the USDA zone info.

Planting Calendar for Iberis

Frost tolerance for iberis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

You can plant iberis a little earlier in the year because they are moderately cold tolerant.

The earliest that you can plant iberis in Franklin 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 iberis and expect a good harvest is probably September. Any later than that and your iberis may not have a chance to fully mature. Starting your iberis indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Franklin. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Franklin may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Franklin you get surprised by a frost after April 15 be ready to cover your iberis in the event of a late frost.

USDA Zone Info for Franklin

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°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 -5°F.

Plants to Grow in Franklin

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