One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of making a decision about when you can plant polka dot plant is to consult the USDA zone info for Marysville.

Planting Calendar for Polka Dot Plant

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

Since polka dot plant do not do well in cold weather you need to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant polka dot plant in Marysville 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 polka dot plant and expect a good harvest is probably September. You probably don't want to wait any later than that or else your polka dot plant may not have a chance to grow to maturity. If you are starting your polka dot plant indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Marysville the average date of last frost happens on February 15. You can expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that USDA zone info for Marysville is not always accurate and the actual date of last frost changes from year to year. Half of the time in Marysville you get surprised by a frost after February 15 so make sure that you are ready to cover your polka dot plant in the event of a surprise late frost.

USDA Zone Info for Marysville

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Marysville

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