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

In Faribault you can estimate when it's the best time to plant diascia by checking out the USDA zone info.

Planting Calendar for Diascia

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

Diascia do well in mild cold which tells us that you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant diascia in Faribault is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant diascia and expect a good harvest is probably August. Any later than that and your diascia may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your diascia indoors.

Last Frost Date

The average date of last frost is May 15 in Faribault. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Faribault is just an average the actual date of last frost will vary from year to year. Half of the time in Faribault there is a last frost after May 15 so make sure that you are ready to protect your diascia in the event of a surprise late frost.

USDA Zone Info for Faribault

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 Faribault

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