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.

You should be able to figure out when it's possible to plant black eyed susans by looking at the USDA zone info for Hawaiian Gardens.

Planting Calendar for Black Eyed Susans

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

It's not a good idea to plant black eyed susans until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant black eyed susans in Hawaiian Gardens 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 black eyed susans and expect a good harvest is probably September. Any later than that and your black eyed susans may not have a chance to really do well. You can get started a couple of weeks earlier by starting your black eyed susans indoors.

Last Frost Date

In Hawaiian Gardens the average date of last frost happens on January 31. It might get as low as 35°F during the coldest months of winter.

Since the USDA zone info for Hawaiian Gardens may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Hawaiian Gardens it frosts late in the year after January 31 so be sure to be ready to cover your black eyed susans if you have a surprise late frost.

USDA Zone Info for Hawaiian Gardens

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Hawaiian Gardens

You may be interested in your other planting guides for Hawaiian Gardens.