One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant brachycome in Wahpeton should be figured out by using the USDA zone info.

Planting Calendar for Brachycome

Frost tolerance for brachycome:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably not a good idea to plant brachycome until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant brachycome in Wahpeton 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. Any later than that and your brachycome may not have a chance to grow to maturity. If you are starting your brachycome indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is May 15 in Wahpeton. In the coldest months of winter you can expect an average low temperature of -30°F.

Always keep in mind that USDA zone info for Wahpeton may not be accurate from year to year and the actual date of last frost will vary from year to year. Half of the time in Wahpeton it frosts late in the year after May 15 so make sure that you are ready to protect your brachycome in the event of one of those late frosts.

USDA Zone Info for Wahpeton

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Wahpeton

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