Before planting it is a good idea to find your USDA Zone info to determine 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 Pleasanton you can figure out when it's possible to plant hibiscus by looking at the USDA zone info.

Planting Calendar for Hibiscus

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

Hibiscus do not do well in cold weather which tells us that it's important to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant hibiscus in Pleasanton is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant hibiscus and expect a good harvest is probably September. Any later than that and your hibiscus may not have a chance to grow to maturity. Starting your hibiscus indoors is a great way to get them started a little bit earlier.

Last Frost Date

In Pleasanton the average date of last frost happens on February 15. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Pleasanton is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Pleasanton last frost occurs after February 15 so make sure that you are prepared to protect your hibiscus if you have one of those late frosts.

USDA Zone Info for Pleasanton

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Pleasanton

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