One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Sierra Madre should be reffered to in order to determine when it's a good idea to plant hosta.

Planting Calendar for Hosta

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

Since hosta do well in moderate cold you can plant them a little bit earlier in the year than other frost tender plants.

The earliest that you can plant hosta in Sierra Madre 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 hosta and expect a good harvest is probably October. Any later than that and your hosta may not have a chance to really do well. If you are starting your hosta indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Sierra Madre the average date of last frost happens on January 31. It might get as low as 30°F during the coldest months of winter.

It's important to remember that USDA zone info for Sierra Madre is not always accurate and the actual date of last frost is different every year. Half of the time in Sierra Madre you get a frost after January 31 so make sure that you are prepared to protect your hosta in the event of one of those late frosts.

USDA Zone Info for Sierra Madre

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Sierra Madre

You may be interested in your other planting guides for Sierra Madre.