Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's possible to estimate when to plant evolvulus by checking out the USDA zone info for Roma.

Planting Calendar for Evolvulus

Frost tolerance for evolvulus:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You really shouldn't plant evolvulus until after all chance of frost has passed because they require warm weather.

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

The last month that you can plant evolvulus and expect a good harvest is probably September. Any later than that and your evolvulus may not have a chance to fully mature. You can get started a few weeks earlier by starting your evolvulus indoors.

Last Frost Date

The average date of last frost is February 15 in Roma. In the coldest months of winter you should expect an average low temperature of 25°F.

Always keep in mind that USDA zone info for Roma is just an average and the actual date of last frost is different every year. Since half of the time in Roma there is a last frost after February 15 be ready to cover your evolvulus if you have one of those late frosts.

USDA Zone Info for Roma

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 Roma

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