The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Hugo you can determine when you can plant dianthus by using the USDA zone info.

Planting Calendar for Dianthus

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

Dianthus do ok in moderate cold which means that you can plant them a little bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant dianthus in Hugo 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 dianthus and expect a good harvest is probably August. If you wait any later than that and your dianthus may not have a chance to really do well. You can get started a few weeks earlier by starting your dianthus indoors.

Last Frost Date

On average all chance of frost has passed is on May 15 in Hugo. It might get as low as -25°F during the coldest months of winter.

It's important to remember that USDA zone info for Hugo may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Hugo there is a last frost after May 15 so make sure that you are prepared to cover your dianthus in the event of a surprise late frost.

USDA Zone Info for Hugo

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 Hugo

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