One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Marble Falls can be reviewed to estimate when it's a good idea to plant diascia.

Planting Calendar for Diascia

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

Diascia do ok in mild cold which means that you can plant them a little bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant diascia in Marble Falls 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. You can get started a little bit earlier by starting your diascia indoors.

Last Frost Date

The average date of last frost is March 15 in Marble Falls. You can expect an average low temperature of 15°F in the coldest months of winter.

Remember that USDA zone info for Marble Falls is just an average and the actual date of last frost is different every year. Since half of the time in Marble Falls you get surprised by a frost after March 15 be ready to cover your diascia in the event of one of those late frosts.

USDA Zone Info for Marble Falls

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Marble Falls

You may be interested in your other planting guides for Marble Falls.