The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of making a decision about when to plant polka dot plant is to refer to the USDA zone info for Millbrae.

Planting Calendar for Polka Dot Plant

Frost tolerance for polka dot plant:	Not tolerant of frost.
When to plant:	After the last frost.

You really shouldn't plant polka dot plant until after the last frost because they do not do well in cold weather.

The earliest that you can plant polka dot plant in Millbrae 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. Any later than that and your polka dot plant may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your polka dot plant indoors.

Last Frost Date

The average date of last frost is January 31 in Millbrae. You can expect an average low temperature of 30°F in the coldest months of winter.

Since the USDA zone info for Millbrae may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Millbrae you get surprised by a frost after January 31 so always be ready to protect your polka dot plant if you have a late frost.

USDA Zone Info for Millbrae

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 Millbrae

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