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.

The USDA zone info for Brentwood can be reviewed to determine when it's possible 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.

Dianthus are moderately cold tolerant which means that you can plant them a little bit earlier than other frost tender plants.

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

The last month that you can plant dianthus and expect a good harvest is probably October. If you wait any later than that and your dianthus may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your dianthus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Brentwood. You can expect an average low temperature of 25°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Brentwood is an average and the actual date of last frost will vary from year to year. Since half of the time in Brentwood you get surprised by a frost after February 15 be ready to cover your dianthus in the event of a late frost.

USDA Zone Info for Brentwood

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°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 30°F.

Plants to Grow in Brentwood

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