One of the best tools that you have as gardeners to help us figure out 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.

The first opportunity to plant evolvulus in Patterson can be determined by looking at the USDA zone info.

Planting Calendar for Evolvulus

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

Since evolvulus are not cold tolerant you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant evolvulus in Patterson 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. You probably don't want to wait any later than that or else your evolvulus may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your evolvulus indoors.

Last Frost Date

In Patterson the average date of last frost happens on February 15. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that USDA zone info for Patterson may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Patterson it frosts late in the year after February 15 so make sure that you are prepared to cover your evolvulus if you have a surprise late frost.

USDA Zone Info for Patterson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°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 25°F.

Plants to Grow in Patterson

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