When can I plant Alternanthera in Zone 6b

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

It's possible to estimate when you can plant alternanthera by looking at the USDA zone info for Zone 6b.


Planting Calendar for Alternanthera

Frost tolerance for alternanthera: Not tolerant of frost.
When you should plant them: After the last frost when the weather gets warmer.

Since alternanthera require warm weather you have to wait until after all chance of frost has passed before you can plant them.

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

The earliest that you can plant alternanthera in Zone 6b 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 alternanthera and expect a good harvest is probably August. If you wait any later than that and your alternanthera may not have a chance to really do well. You can get started a couple of weeks earlier by starting your alternanthera indoors.

Last Frost Date

In Zone 6b the average date of last frost happens on April 15. We should expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Zone 6b may not be accurate from year to year our actual date of last frost will vary from year to year. Since half of the time in Zone 6b it frosts late in the year after April 15 be ready to protect your alternanthera in the event of a surprise late frost.

USDA Zone Info for Zone 6b

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Zone 6b

You may be interested in our other planting guides for Zone 6b.