One of the first steps you take when you are estimating 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.

A common way of getting a good idea when it's possible to plant salpiglossis is to consult the USDA zone info for Aliso Viejo.

Planting Calendar for Salpiglossis

Frost tolerance for salpiglossis:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's probably a bad idea to plant salpiglossis until after the last frost because they are not cold tolerant.

The earliest that you can plant salpiglossis in Aliso Viejo 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 salpiglossis and expect a good harvest is probably September. You probably don't want to wait any later than that or else your salpiglossis may not have a chance to really do well. You can get started a couple of weeks earlier by starting your salpiglossis indoors.

Last Frost Date

The average date of last frost is January 31 in Aliso Viejo. In the coldest months of winter you can expect an average low temperature of 30°F.

Since the USDA zone info for Aliso Viejo is just an average the actual date of last frost changes from year to year. Since half of the time in Aliso Viejo you get surprised by a frost after January 31 be ready to protect your salpiglossis if you have a surprise late frost.

USDA Zone Info for Aliso Viejo

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 Aliso Viejo

You may be interested in your other planting guides for Aliso Viejo.