The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

It's a good idea to figure out when it's a good idea to plant tropical water plants by checking out the USDA zone info for Vacaville.

Planting Calendar for Tropical Water Plants

Frost tolerance for tropical water plants:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Tropical Water Plants are not cold tolerant which means that it is necessary to wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant tropical water plants in Vacaville 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 tropical water plants and expect a good harvest is probably September. Any later than that and your tropical water plants may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your tropical water plants indoors.

Last Frost Date

On average the last frost has passed is on February 15 in Vacaville. In the coldest months of winter you can expect an average low temperature of 25°F.

Since the USDA zone info for Vacaville is not always accurate the actual date of last frost is different every year. Half of the time in Vacaville last frost occurs after February 15 so always be ready to cover your tropical water plants in the event of a surprise late frost.

USDA Zone Info for Vacaville

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 Vacaville

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