The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to figure out when you can plant bougainvillea by checking out the USDA zone info for Dearborn.

Planting Calendar for Bougainvillea

Frost tolerance for bougainvillea:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

It's a bad idea to plant bougainvillea until after the last frost when the weather gets warmer because they require warm weather.

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

Last Frost Date

On average all chance of frost has passed is on April 15 in Dearborn. You can expect an average low temperature of -5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Dearborn is just an average and the actual date of last frost changes from year to year. Half of the time in Dearborn you get surprised by a frost after April 15 so make sure that you are ready to protect your bougainvillea if you have a surprise late frost.

USDA Zone Info for Dearborn

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Dearborn

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