One of the first steps you take when you are making a decision about 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.

One way of getting a good idea when it's a good idea to plant schizanthus is to refer to the USDA zone info for Winooski.

Planting Calendar for Schizanthus

Frost tolerance for schizanthus:	Not tolerant of frost.
When to plant:	After the last frost.

It's probably not a good idea to plant schizanthus until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant schizanthus in Winooski is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant schizanthus and expect a good harvest is probably August. If you wait any later than that and your schizanthus may not have a chance to really do well. Starting your schizanthus indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Winooski the average date of last frost happens on April 15. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Winooski is an average the actual date of last frost is different every year. Since half of the time in Winooski you get a frost after April 15 be ready to cover your schizanthus in the event of a surprise late frost.

USDA Zone Info for Winooski

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Winooski

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