One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when to plant tropical water plants by looking at the USDA zone info for Calimesa.

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.

You should not plant tropical water plants until after the last frost because they require warm weather.

The earliest that you can plant tropical water plants in Calimesa 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. If you wait any later than that and your tropical water plants may not have a chance to really do well. If you are starting your tropical water plants indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Calimesa. 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 Calimesa may not be accurate from year to year and the actual date of last frost changes from year to year. Half of the time in Calimesa you get a frost after February 15 so just be sure to be ready to cover your tropical water plants in the event of a late frost.

USDA Zone Info for Calimesa

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 Calimesa

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