When can I plant Brachycome in Zone 4b

Before planting it is a good idea to find our USDA Zone info to determine our garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

In Zone 4b you can estimate when to plant brachycome by referring to the USDA zone info.


Planting Calendar for Brachycome

Frost tolerance for brachycome: Not tolerant of frost.
When you should plant them: After the last frost has passed.

Brachycome require warm weather which means that you really should wait until it warms up after the last frost has passed before you can plant them.

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

The earliest that you can plant brachycome in Zone 4b is May. However, you really should wait until June if you don't want to take any chances.

The last month that you can plant brachycome and expect a good harvest is probably August. You probably don't want to wait any later than that or else your brachycome may not have a chance to really do well. You can get started a few weeks earlier by starting your brachycome indoors.

Last Frost Date

In Zone 4b the average date of last frost happens on May 15. We can expect an average low temperature of -25°F in the coldest months of winter.

Remember that our actual date of last frost is an average because it is based on the USDA zone info for Zone 4b and it will vary from year to year. Half of the time in Zone 4b last frost occurs after May 15 so make sure that you are ready to cover your brachycome in the event of a surprise late frost.

USDA Zone Info for Zone 4b

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)September 15
Lowest Expected Low-25°F
Highest Expected Low-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Zone 4b

You may be interested in our other planting guides for Zone 4b.