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

By reviewing the USDA zone info for Pacific you should be able to estimate when it's a good idea to plant dianthus.

Planting Calendar for Dianthus

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

You can plant dianthus a little bit earlier in the year because they are moderately cold tolerant.

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

The last month that you can plant dianthus and expect a good harvest is probably September. If you wait any later than that and your dianthus may not have a chance to fully mature. Starting your dianthus indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Pacific. In the coldest months of winter you should expect an average low temperature of -10°F.

Since the USDA zone info for Pacific is not always accurate the actual date of last frost is different every year. Half of the time in Pacific it frosts late in the year after April 15 so make sure that you are prepared to cover your dianthus in the event of a late frost.

USDA Zone Info for Pacific

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Pacific

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