One of the first steps you take when you are getting a good idea 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.

The best time to plant tropical water plants in Zone 11b can be determined by referring to the USDA zone info.

Planting Calendar for Tropical Water Plants

Frost tolerance for tropical water plants:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's not a good idea to plant tropical water plants until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant tropical water plants in Zone 11b is January. However, you really should wait until February 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 November. Any later than that and 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

In Zone 11b it never frosts. You should expect an average low temperature of 45°F in the coldest months of winter.

Since the USDA zone info for Zone 11b may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since it never frosts in Zone 11b you do not have to be ready to cover your tropical water plants if you have a surprise late frost.

USDA Zone Info for Zone 11b

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	45°F
Highest Expected Low	50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Zone 11b

You may be interested in your other planting guides for Zone 11b.