The USDA Zone info is a great tool for gardeners to help us determine your gardening 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 figure out when it's the best time to plant heuchera by looking at the USDA zone info for Colton.

Planting Calendar for Heuchera

Frost tolerance for heuchera:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Heuchera do ok in mild cold which means that you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant heuchera in Colton is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant heuchera and expect a good harvest is probably October. You probably don't want to wait any later than that or else your heuchera may not have a chance to grow to maturity. You can get started a little bit earlier by starting your heuchera indoors.

Last Frost Date

In Colton the average date of last frost happens on February 15. 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 Colton may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Colton there is a last frost after February 15 so always be ready to protect your heuchera if you have a surprise late frost.

USDA Zone Info for Colton

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 Colton

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