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.

It's a good idea to estimate when it's the best time to plant polka dot plant by using the USDA zone info for Diamond Bar.

Planting Calendar for Polka Dot Plant

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

Since polka dot plant require warm weather it is necessary to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant polka dot plant in Diamond Bar 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 polka dot plant and expect a good harvest is probably September. If you wait any later than that and your polka dot plant may not have a chance to really do well. You can get started a few weeks earlier by starting your polka dot plant indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Diamond Bar. In the coldest months of winter you should expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for Diamond Bar is an average and the actual date of last frost changes from year to year. Half of the time in Diamond Bar it frosts late in the year after January 31 so always be ready to protect your polka dot plant in the event of one of those late frosts.

USDA Zone Info for Diamond Bar

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 Diamond Bar

You may be interested in your other planting guides for Diamond Bar.