One of the best tools that you have as gardeners to help us estimate 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.

A common way of determining when it's the best time to plant nasturtium is to examine the USDA zone info for Blanchester.

Planting Calendar for Nasturtium

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

Since nasturtium require warm weather it is important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant nasturtium in Blanchester 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 nasturtium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your nasturtium may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your nasturtium indoors.

Last Frost Date

The average date of last frost is April 15 in Blanchester. It might get as low as -10°F during the coldest months of winter.

Keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Blanchester and it is different every year. Since half of the time in Blanchester there is a last frost after April 15 be ready to cover your nasturtium if you have one of those late frosts.

USDA Zone Info for Blanchester

Here is the info for USDA Zone 6a.

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

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Blanchester

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