One of the first steps you take when you are getting a good idea 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 Houghton should be reffered to in order 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 do well in moderate cold which means that you can get them planted earlier than other frost tender plants.

The earliest that you can plant veronica in Houghton 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 grow to maturity. Starting your veronica indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Houghton is just an average and the actual date of last frost changes from year to year. Since half of the time in Houghton 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 Houghton

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 Houghton

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