The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Sumner it's a good idea to determine when it's a good idea to plant chrysocephalum.

Planting Calendar for Chrysocephalum

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

Chrysocephalum require warm weather which means that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant chrysocephalum in Sumner 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 chrysocephalum and expect a good harvest is probably August. Any later than that and your chrysocephalum may not have a chance to fully mature. Starting your chrysocephalum indoors is a great way to get them started a few weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Sumner. In the coldest months of winter you can expect an average low temperature of 15°F.

Since the USDA zone info for Sumner is just an average the actual date of last frost changes from year to year. Half of the time in Sumner you get surprised by a frost after March 15 so make sure that you are ready to cover your chrysocephalum in the event of a late frost.

USDA Zone Info for Sumner

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Sumner

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