One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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 best time to plant veronica in Crystal Lake can be determined by checking out 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.

Veronica do well in mild cold which tells us that you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant veronica in Crystal Lake 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. If you wait any later than that and your veronica may not have a chance to really do well. 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

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

Since the USDA zone info for Crystal Lake is an average the actual date of last frost changes from year to year. Half of the time in Crystal Lake you get surprised by a frost after April 15 so just be sure to be ready to cover your veronica in the event of one of those late frosts.

USDA Zone Info for Crystal Lake

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 Crystal Lake

You may be interested in your other planting guides for Crystal Lake.