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 figuring out when it's possible to plant salpiglossis is to consult the USDA zone info for Eureka.

Planting Calendar for Salpiglossis

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

Since salpiglossis require warm weather it is important to wait until after the last frost before you can plant them.

The earliest that you can plant salpiglossis in Eureka 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 salpiglossis and expect a good harvest is probably September. You probably don't want to wait any later than that or else your salpiglossis may not have a chance to really do well. You can get started a few weeks earlier by starting your salpiglossis indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Eureka. In the coldest months of winter you should expect an average low temperature of 25°F.

It's important to remember that USDA zone info for Eureka may not be accurate from year to year and the actual date of last frost changes from year to year. Since half of the time in Eureka last frost occurs after February 15 be ready to cover your salpiglossis in the event of a surprise late frost.

USDA Zone Info for Eureka

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 Eureka

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