When to Plant Caladium in Dover, NH

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant caladium in Dover should be figured out by reviewing the USDA zone info.


Planting Calendar for Caladium

Frost tolerance for caladium: Not tolerant of frost.
When to plant: After the last frost has passed.

It's not a good idea to plant caladium until after the last frost when the weather gets warmer because they require warm weather.

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

The earliest that you can plant caladium in Dover 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 caladium and expect a good harvest is probably August. If you wait any later than that and your caladium may not have a chance to really do well. Starting your caladium indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Dover. In the coldest months of winter you can expect an average low temperature of -15°F.

Always keep in mind that USDA zone info for Dover is not always accurate and the actual date of last frost is different every year. Half of the time in Dover you get surprised by a frost after April 15 so make sure that you are ready to protect your caladium in the event of a surprise late frost.

USDA Zone Info for Dover

Here is the info for USDA Zone 5b.

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

Plants to Grow in Dover

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