One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Chardon should be read to figure out when it's a good idea to plant anchusa.

Planting Calendar for Anchusa

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

Anchusa tend to make it in a bit of cold which tells us that you can plant them much earlier in the year than other frost tender plants.

The earliest that you can plant anchusa in Chardon 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. You probably don't want to wait any later than that or else your anchusa may not have a chance to really do well. Starting your anchusa indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Chardon the average date of last frost happens on April 15. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Chardon is not always accurate the actual date of last frost changes from year to year. Half of the time in Chardon last frost occurs after April 15 so just be sure to be ready to cover your anchusa in the event of a surprise late frost.

USDA Zone Info for Chardon

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 Chardon

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