The USDA Zone info is a great tool for gardeners to help us figure out 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.

The best time to plant crossandra in Oshkosh should be estimated by referring to the USDA zone info.

Planting Calendar for Crossandra

Frost tolerance for crossandra:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You can not plant crossandra until after the last frost because they are not cold tolerant.

The earliest that you can plant crossandra in Oshkosh 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 crossandra and expect a good harvest is probably August. Any later than that and your crossandra may not have a chance to grow to maturity. Starting your crossandra indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Oshkosh. In the coldest months of winter you should expect an average low temperature of -20°F.

Since the USDA zone info for Oshkosh is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Oshkosh you get surprised by a frost after April 15 be ready to cover your crossandra in the event of a late frost.

USDA Zone Info for Oshkosh

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 Oshkosh

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