Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of getting a good idea when to plant parsley is to check out the USDA zone info for Rosemead.

Planting Calendar for Parsley

Frost tolerance for parsley:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since parsley are one of those plants that can tolerate a little bit of cold weather you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant parsley in Rosemead 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 parsley and expect a good harvest is probably October. If you wait any later than that and your parsley may not have a chance to fully mature. You can get started a little bit earlier by starting your parsley indoors.

Last Frost Date

The average date of last frost is January 31 in Rosemead. It might get as low as 30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Rosemead is just an average and the actual date of last frost is different every year. Since half of the time in Rosemead it frosts late in the year after January 31 be ready to protect your parsley if you have a surprise late frost.

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.