When can I plant Tropical Water Plants in Zone 1b

One of the first steps we take when we are determining 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.

In Zone 1b you can estimate when it's a good idea to plant tropical water plants by using the USDA zone info.


Planting Calendar for Tropical Water Plants

Frost tolerance for tropical water plants: Not tolerant of frost.
When you should plant them: After all chance of frost has passed.

Since tropical water plants do not do well in cold 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 tropical water plants
Possibly ok, but a risky time to plant tropical water plants
Probably not a good time to plant tropical water plants

The earliest that you can plant tropical water plants 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 tropical water plants and expect a good harvest is probably July. You probably don't want to wait any later than that or else your tropical water plants may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your tropical water plants indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on June 15 in Zone 1b. In the coldest months of winter we should expect an average low temperature of -55°F.

Just be sure to remember that USDA zone info for Zone 1b is just an average and our actual date of last frost will vary from year to year. Since half of the time in Zone 1b it frosts late in the year after June 15 be ready to cover your tropical water plants in the event of one of those late frosts.

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.