One of the best tools that you have as gardeners to help us figure out 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.

It's possible to determine when you can plant tropical water plants by looking at the USDA zone info for Pleasant Hill.

Planting Calendar for Tropical Water Plants

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

You really shouldn't plant tropical water plants until after all chance of frost has passed because they are not cold tolerant.

The earliest that you can plant tropical water plants in Pleasant Hill 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 grow to maturity. You can get started a few weeks earlier by starting your tropical water plants indoors.

Last Frost Date

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

Since the USDA zone info for Pleasant Hill is not always accurate the actual date of last frost can change quite a bit from year to year. Since half of the time in Pleasant Hill there is a last frost after February 15 be ready to protect your tropical water plants in the event of a late frost.

USDA Zone Info for Pleasant Hill

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 Pleasant Hill

You may be interested in your other planting guides for Pleasant Hill.