One of the best tools that you have as gardeners to help us determine 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.

You can estimate when it's possible to plant dahlberg daisy in Havre by checking out the USDA zone info.

Planting Calendar for Dahlberg Daisy

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

You should not plant dahlberg daisy until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant dahlberg daisy in Havre 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 dahlberg daisy and expect a good harvest is probably August. You probably don't want to wait any later than that or else your dahlberg daisy may not have a chance to really do well. If you are starting your dahlberg daisy indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

On average the last frost is on May 15 in Havre. It might get as low as -30°F during the coldest months of winter.

Remember that the actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Havre and it is different every year. Half of the time in Havre it frosts late in the year after May 15 so make sure that you are prepared to protect your dahlberg daisy in the event of a late frost.

USDA Zone Info for Havre

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 Havre

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