One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By checking out the USDA zone info for Royal Oak you will be able to estimate when it's the best time to plant veronica.

Planting Calendar for Veronica

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

Veronica are moderately cold tolerant which tells us that you can start planting them earlier than other frost tender plants.

The earliest that you can plant veronica in Royal Oak 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. Any later than that and your veronica may not have a chance to really do well. You can get started a couple of weeks earlier by starting your veronica indoors.

Last Frost Date

The average date of last frost is April 15 in Royal Oak. You can expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Royal Oak is just an average and the actual date of last frost is different every year. Since half of the time in Royal Oak you get a frost after April 15 be ready to cover your veronica if you have a late frost.

USDA Zone Info for Royal Oak

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Royal Oak

You may be interested in your other planting guides for Royal Oak.