When to Plant Amaranthus in Claremont, CA

One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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.

It's a good idea to determine when it's a good idea to plant amaranthus by looking at the USDA zone info for Claremont.


Planting Calendar for Amaranthus

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

You can not plant amaranthus until after the last frost because they are not cold tolerant.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant amaranthus
Possibly ok, but a risky time to plant amaranthus
Probably not a good time to plant amaranthus

The earliest that you can plant amaranthus in Claremont 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 amaranthus and expect a good harvest is probably September. If you wait any later than that and your amaranthus may not have a chance to fully mature. You can get started a few weeks earlier by starting your amaranthus indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Claremont. It might get as low as 25°F during the coldest months of winter.

Since the USDA zone info for Claremont is an average the actual date of last frost is different every year. Since half of the time in Claremont it frosts late in the year after February 15 be ready to protect your amaranthus in the event of a surprise late frost.

USDA Zone Info for Claremont

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 Low25°F
Highest Expected Low30°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 Claremont

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