When to Plant Chrysocephalum in Zone 1a

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's possible to plant chrysocephalum in Zone 1a by using the USDA zone info.


Planting Calendar for Chrysocephalum

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

Chrysocephalum are not cold tolerant which means that you have to wait until it warms up after all chance of frost has passed before you can plant them.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant chrysocephalum
Possibly ok, but a risky time to plant chrysocephalum
Probably not a good time to plant chrysocephalum

The earliest that you can plant chrysocephalum in Zone 1a is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant chrysocephalum and expect a good harvest is probably July. You probably don't want to wait any later than that or else your chrysocephalum may not have a chance to grow to maturity. You can get started a little bit earlier by starting your chrysocephalum indoors.

Last Frost Date

The average date of last frost is June 15 in Zone 1a. In the coldest months of winter you should expect an average low temperature of -60°F.

Since the USDA zone info for Zone 1a is not always accurate the actual date of last frost will vary from year to year. Half of the time in Zone 1a you get surprised by a frost after June 15 so make sure that you are prepared to protect your chrysocephalum if you have a late frost.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-60°F
Highest Expected Low-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in your other planting guides for Zone 1a.