One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

It's a good idea to estimate when it's the best time to plant bougainvillea by checking out the USDA zone info for Winona.

Planting Calendar for Bougainvillea

Frost tolerance for bougainvillea:	Not tolerant of frost.
When to plant:	After the last frost.

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

The earliest that you can plant bougainvillea in Winona 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 really do well. You can get started a couple of weeks earlier by starting your bougainvillea indoors.

Last Frost Date

In Winona the average date of last frost happens on April 15. In the coldest months of winter you can expect an average low temperature of 5°F.

Since the USDA zone info for Winona may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Winona there is a last frost after April 15 so just be sure to be ready to protect your bougainvillea in the event of a late frost.

USDA Zone Info for Winona

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°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 10°F.

Plants to Grow in Winona

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