Before planting it is a good idea to find your USDA Zone info to figure out your garden 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 Rosemead should be reffered to in order to determine when it's a good idea to plant basil.

Planting Calendar for Basil

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

Since basil are not cold tolerant you need to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant basil in Rosemead is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant basil and expect a good harvest is probably September. If you wait any later than that and your basil may not have a chance to grow to maturity. If you are starting your basil indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Rosemead. In the coldest months of winter you should expect an average low temperature of 30°F.

It's important to remember that USDA zone info for Rosemead is just an average and the actual date of last frost will vary from year to year. Half of the time in Rosemead it frosts late in the year after January 31 so make sure that you are ready to cover your basil if you have one of those late frosts.

USDA Zone Info for Rosemead

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Rosemead

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