One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when it's the best time to plant scaevola is to refer to the USDA zone info for Dallas.

Planting Calendar for Scaevola

Frost tolerance for scaevola:	Not tolerant of frost.
When to plant:	After the last frost.

It's not a good idea to plant scaevola until after all chance of frost has passed because they require warm weather.

The earliest that you can plant scaevola in Dallas is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant scaevola and expect a good harvest is probably August. If you wait any later than that and your scaevola may not have a chance to really do well. If you are starting your scaevola indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for Dallas is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Dallas there is a last frost after March 15 so just be sure to be ready to protect your scaevola in the event of a surprise late frost.

USDA Zone Info for Dallas

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 Dallas

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