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.

In Monterey you can estimate when it's possible to plant scallions by looking at the USDA zone info.

Planting Calendar for Scallions

Frost tolerance for scallions:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since scallions are one of those plants that can tolerate a tiny bit of cold weather you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant scallions in Monterey 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 scallions and expect a good harvest is probably September. You probably don't want to wait any later than that or else your scallions may not have a chance to really do well. You can get started a little bit earlier by starting your scallions indoors.

Last Frost Date

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

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Monterey and it is different every year. Half of the time in Monterey it frosts late in the year after January 31 so just be sure to be ready to cover your scallions in the event of a surprise late frost.

USDA Zone Info for Monterey

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 Monterey

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