One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Middleton should be looked at to determine when to plant begonias.

Planting Calendar for Begonias

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

You really shouldn't plant begonias until after the last frost when the weather gets warmer because they do not do well in cold weather.

The earliest that you can plant begonias in Middleton 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. You probably don't want to wait any later than that or else 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

On average all chance of frost has passed is on April 15 in Middleton. You can expect an average low temperature of -20°F in the coldest months of winter.

Keep in mind that USDA zone info for Middleton is just an average and the actual date of last frost will vary from year to year. Since half of the time in Middleton it frosts late in the year after April 15 be ready to protect your begonias if you have one of those late frosts.

USDA Zone Info for Middleton

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 Middleton

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