When to Plant Amaranthus in Archbald, PA

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.

By referring to the USDA zone info for Archbald you will be able to estimate when it's a good idea to plant amaranthus.


Planting Calendar for Amaranthus

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

Amaranthus are not cold tolerant which tells us that it is important to wait until it warms up after the last frost has passed before you can plant them.

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 Archbald is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant amaranthus and expect a good harvest is probably August. If you wait any later than that and your amaranthus may not have a chance to fully mature. If you are starting your amaranthus indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

In Archbald the average date of last frost happens on April 15. You can expect an average low temperature of -10°F in the coldest months of winter.

Remember that USDA zone info for Archbald is an average and the actual date of last frost is different every year. Since half of the time in Archbald you get a frost after April 15 be ready to cover your amaranthus if you have a late frost.

USDA Zone Info for Archbald

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-10°F
Highest Expected Low-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Archbald

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