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

By referring to the USDA zone info for New Prague it's a good idea to estimate when to plant calibrachoa.

Planting Calendar for Calibrachoa

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

Calibrachoa do ok in moderate cold which tells us that you can plant them slightly earlier than other plants that might not handle the cold.

The earliest that you can plant calibrachoa in New Prague is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant calibrachoa and expect a good harvest is probably August. Any later than that and your calibrachoa may not have a chance to really do well. You can get started a couple of weeks earlier by starting your calibrachoa indoors.

Last Frost Date

The average date of last frost is May 15 in New Prague. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for New Prague is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in New Prague there is a last frost after May 15 so make sure that you are ready to cover your calibrachoa in the event of a late frost.

USDA Zone Info for New Prague

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in New Prague

You may be interested in your other planting guides for New Prague.