Before planting it is a good idea to find your USDA Zone info to estimate 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.

The first opportunity to plant diascia in Durham can be figured out 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.

You can plant diascia a little bit earlier in the year because they do well in moderate cold.

The earliest that you can plant diascia in Durham 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 diascia and expect a good harvest is probably September. Any later than that and your diascia may not have a chance to grow to maturity. Starting your diascia indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Durham the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 5°F.

Just be sure to remember that USDA zone info for Durham is just an average and the actual date of last frost changes from year to year. Since half of the time in Durham last frost occurs after April 15 be ready to protect your diascia if you have one of those late frosts.

USDA Zone Info for Durham

Here is the info for USDA Zone 7b.

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

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

Plants to Grow in Durham

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