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

You can estimate when it's a good idea to plant scarlet pimpernels in Chico by looking at the USDA zone info.

Planting Calendar for Scarlet Pimpernels

Frost tolerance for scarlet pimpernels:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since scarlet pimpernels do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant scarlet pimpernels in Chico is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant scarlet pimpernels and expect a good harvest is probably September. If you wait any later than that and your scarlet pimpernels may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your scarlet pimpernels indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Chico. In the coldest months of winter you should expect an average low temperature of 20°F.

Since the USDA zone info for Chico may not be accurate from year to year the actual date of last frost changes from year to year. Since half of the time in Chico there is a last frost after February 15 be ready to cover your scarlet pimpernels if you have a late frost.

USDA Zone Info for Chico

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 Chico

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