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.

You should be able to determine when it's possible to plant cerastium by referring to the USDA zone info for Yukon.

Planting Calendar for Cerastium

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

Cerastium are moderately cold tolerant which tells us that you can plant them earlier than more sensitive plants.

The earliest that you can plant cerastium in Yukon 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 cerastium and expect a good harvest is probably September. Any later than that and your cerastium may not have a chance to fully mature. You can get started a little bit earlier by starting your cerastium indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Yukon. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Yukon may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Yukon there is a last frost after April 15 so make sure that you are ready to protect your cerastium in the event of a late frost.

USDA Zone Info for Yukon

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Yukon

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