Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Aliso Viejo you can estimate when to plant tropical hibiscus by looking at the USDA zone info.

Planting Calendar for Tropical Hibiscus

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

You can not plant tropical hibiscus until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant tropical hibiscus 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 tropical hibiscus and expect a good harvest is probably September. Any later than that and your tropical hibiscus may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your tropical hibiscus indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Aliso Viejo. You should expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Aliso Viejo is just an average the actual date of last frost is different every year. Since half of the time in Aliso Viejo it frosts late in the year after January 31 be ready to cover your tropical hibiscus in the event of 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.