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

It's a good idea to figure out when it's the best time to plant iberis by looking at the USDA zone info for Brownsburg.

Planting Calendar for Iberis

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

Iberis do well in moderate cold which means that you can start planting them earlier than plants that are more sensitive to the cold.

The earliest that you can plant iberis in Brownsburg 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 grow to maturity. You can get started a little bit earlier by starting your iberis indoors.

Last Frost Date

On average the last frost is on April 15 in Brownsburg. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Brownsburg may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Brownsburg it frosts late in the year after April 15 so always be ready to cover your iberis if you have one of those late frosts.

USDA Zone Info for Brownsburg

Here is the info for USDA Zone 5b.

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

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

Plants to Grow in Brownsburg

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