Before planting it is a good idea to find your USDA Zone info to determine 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.

A common way of getting a good idea when you can plant anchusa is to look at the USDA zone info for North Manchester.

Planting Calendar for Anchusa

Frost tolerance for anchusa:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Anchusa are very cold tolerant which means that you can start planting them much earlier than other frost tender plants.

The earliest that you can plant anchusa in North Manchester 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 anchusa and expect a good harvest is probably September. If you wait any later than that and your anchusa may not have a chance to fully mature. You can get started a few weeks earlier by starting your anchusa indoors.

Last Frost Date

The average date of last frost is April 15 in North Manchester. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for North Manchester is an average the actual date of last frost is different every year. Half of the time in North Manchester there is a last frost after April 15 so make sure that you are ready to cover your anchusa in the event of a late frost.

USDA Zone Info for North Manchester

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 North Manchester

You may be interested in your other planting guides for North Manchester.