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

It's possible to estimate when it's the best time to plant evolvulus by referring to the USDA zone info for Salamanca.

Planting Calendar for Evolvulus

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

Since evolvulus do not do well in cold weather you need to wait until after all chance of frost has passed before you can plant them.

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

Last Frost Date

The average date of last frost is April 15 in Salamanca. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Salamanca is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Salamanca you get surprised by a frost after April 15 be ready to protect your evolvulus if you have one of those late frosts.

USDA Zone Info for Salamanca

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

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

Plants to Grow in Salamanca

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