The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Alpena you can estimate when it's a good idea to plant veronica by referring to the USDA zone info.

Planting Calendar for Veronica

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

Since veronica are moderately cold tolerant you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant veronica in Alpena 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 veronica and expect a good harvest is probably September. You probably don't want to wait any later than that or else your veronica may not have a chance to fully mature. If you are starting your veronica indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Alpena. In the coldest months of winter you should expect an average low temperature of -15°F.

Keep in mind that USDA zone info for Alpena is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Alpena you get surprised by a frost after April 15 be ready to cover your veronica if you have a surprise late frost.

USDA Zone Info for Alpena

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 Alpena

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