One of the first steps you take when you are determining your gardening schedule is find your 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 first chance to plant schizanthus in Sierra Madre can be determined by referring to the USDA zone info.

Planting Calendar for Schizanthus

Frost tolerance for schizanthus:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since schizanthus are not cold tolerant you need to wait until after the last frost when the weather gets warmer before you can plant them.

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

Last Frost Date

In Sierra Madre the average date of last frost happens on January 31. You should expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Sierra Madre may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Sierra Madre you get surprised by a frost after January 31 so make sure that you are prepared to cover your schizanthus in the event of a surprise late frost.

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.