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

The USDA zone info for Patterson can be read to estimate when it's the best time to plant tropical water plants.

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 do not do well in cold weather which means that it's necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant tropical water plants in Patterson 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. You probably don't want to wait any later than that or else your tropical water plants may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your tropical water plants indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Patterson. In the coldest months of winter you can expect an average low temperature of 20°F.

Keep in mind that USDA zone info for Patterson is just an average and the actual date of last frost will vary from year to year. Since half of the time in Patterson there is a last frost after February 15 be ready to protect your tropical water plants if you have a surprise late frost.

USDA Zone Info for Patterson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Patterson

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