When to Plant Begonias in Hiawatha, IA

One of the first steps you take when you are getting a good idea your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Hiawatha you can estimate when you can plant begonias by checking out the USDA zone info.


Planting Calendar for Begonias

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

Since begonias are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

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

The earliest that you can plant begonias in Hiawatha 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 begonias and expect a good harvest is probably August. If you wait any later than that and your begonias may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your begonias indoors.

Last Frost Date

In Hiawatha the average date of last frost happens on April 15. You should expect an average low temperature of -20°F in the coldest months of winter.

Remember that USDA zone info for Hiawatha is an average and the actual date of last frost changes from year to year. Half of the time in Hiawatha last frost occurs after April 15 so make sure that you are prepared to protect your begonias if you have one of those late frosts.

USDA Zone Info for Hiawatha

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

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

Plants to Grow in Hiawatha

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