When can I plant Verbena in Zone 1b

One of the first steps we take when we are figuring out our gardening schedule is find our USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for our area.

It's a good idea to determine when you can plant verbena by checking out the USDA zone info for Zone 1b.


Planting Calendar for Verbena

Frost tolerance for verbena: Tolerant of a very small amount of frost.
When you should plant them: Up to 3 weeks before last frost.

Verbena are barely cold tolerant which tells us that you can get them planted just a bit earlier than other frost tender plants.

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

The earliest that you can plant verbena in Zone 1b is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant verbena and expect a good harvest is probably July. If you wait any later than that and your verbena may not have a chance to fully mature. Starting your verbena indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Zone 1b the average date of last frost happens on June 15. It might get as low as -55°F during the coldest months of winter.

Always keep in mind that our actual date of last frost may not be accurate from year to year because it is based on the USDA zone info for Zone 1b and it is different every year. Half of the time in Zone 1b we get surprised by a frost after June 15 so just be sure to be ready to cover your verbena if we have a late frost.

USDA Zone Info for Zone 1b

Here is the info for USDA Zone 1b.

Average Date of Last Frost (spring)June 15
Average Date of First Frost (fall)July 15
Lowest Expected Low-55°F
Highest Expected Low-50°F

This means that on a really cold year, the coldest it will get is -55°F. On most years you should be prepared to experience lows near -50°F.

Plants to Grow in Zone 1b

You may be interested in our other planting guides for Zone 1b.