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

In Milpitas you can estimate when it's possible to plant coral bells by referring to the USDA zone info.

Planting Calendar for Coral Bells

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

Coral Bells do well in moderate cold which means that you can start planting them earlier than other frost tender plants.

The earliest that you can plant coral bells in Milpitas 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 coral bells and expect a good harvest is probably October. Any later than that and your coral bells may not have a chance to really do well. You can get started a few weeks earlier by starting your coral bells indoors.

Last Frost Date

The average date of last frost is February 15 in Milpitas. In the coldest months of winter you can expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Milpitas is not always accurate and the actual date of last frost is different every year. Half of the time in Milpitas it frosts late in the year after February 15 so make sure that you are prepared to protect your coral bells if you have a late frost.

USDA Zone Info for Milpitas

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 Milpitas

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