When to Plant Amaranthus in Vancouver, WA

The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Vancouver you will be able to estimate when it's the best time to plant amaranthus.


Planting Calendar for Amaranthus

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

Since amaranthus require warm weather it's important to wait until after all chance of 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 Vancouver 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 grow to maturity. You can get started a little bit earlier by starting your amaranthus indoors.

Last Frost Date

In Vancouver the average date of last frost happens on March 15. In the coldest months of winter you should expect an average low temperature of 15°F.

It's important to remember that USDA zone info for Vancouver is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Vancouver it frosts late in the year after March 15 be ready to cover your amaranthus if you have one of those late frosts.

USDA Zone Info for Vancouver

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)March 15
Average Date of First Frost (fall)November 15
Lowest Expected Low15°F
Highest Expected Low20°F

This means that on a really cold year, the coldest it will get is 15°F. On most years you should be prepared to experience lows near 20°F.

Plants to Grow in Vancouver

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