One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By referring to the USDA zone info for Placentia you will be able to determine when it's possible to plant amaranthus.

Planting Calendar for Amaranthus

Frost tolerance for amaranthus:	Not tolerant of frost.
When to plant:	After the last frost.

It's a bad idea to plant amaranthus until after the last frost because they require warm weather.

The earliest that you can plant amaranthus in Placentia 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 amaranthus and expect a good harvest is probably September. Any later than that and your amaranthus may not have a chance to really do well. If you are starting your amaranthus indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Placentia. It might get as low as 30°F during the coldest months of winter.

Keep in mind that USDA zone info for Placentia is not always accurate and the actual date of last frost changes from year to year. Half of the time in Placentia there is a last frost after January 31 so make sure that you are prepared to cover your amaranthus in the event of one of those late frosts.

USDA Zone Info for Placentia

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 Placentia

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