One of the best tools that you have as gardeners to help us determine 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.

The earliest that you can plant flowering kale in Oshkosh can be determined by looking at the USDA zone info.

Planting Calendar for Flowering Kale

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

Flowering Kale can survive in moderate cold which means that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant flowering kale in Oshkosh 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 flowering kale and expect a good harvest is probably September. If you wait any later than that and your flowering kale may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your flowering kale indoors.

Last Frost Date

On average the last frost when the weather gets warmer 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 an average the actual date of last frost changes from year to year. Half of the time in Oshkosh you get a frost after April 15 so make sure that you are prepared to cover your flowering kale if you have 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.