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.

One way of determining when it's a good idea to plant impatiens is to look at the USDA zone info for Hawaiian Gardens.

Planting Calendar for Impatiens

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

You really shouldn't plant impatiens until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant impatiens 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 impatiens and expect a good harvest is probably September. If you wait any later than that and your impatiens may not have a chance to really do well. Starting your impatiens indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Hawaiian Gardens the average date of last frost happens on January 31. In the coldest months of winter you can expect an average low temperature of 35°F.

It's important to remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Hawaiian Gardens and it can change quite a bit from year to year. Since half of the time in Hawaiian Gardens you get a frost after January 31 be ready to cover your impatiens in the event of one of those late frosts.

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.