Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Ellsworth you can figure out when it's a good idea to plant nasturtium by looking at the USDA zone info.

Planting Calendar for Nasturtium

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

It's not a good idea to plant nasturtium until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant nasturtium in Ellsworth 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 grow to maturity. You can get started a few weeks earlier by starting your nasturtium indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Ellsworth. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Ellsworth is not always accurate the actual date of last frost is different every year. Since half of the time in Ellsworth there is a last frost after April 15 be ready to cover your nasturtium in the event of a late frost.

USDA Zone Info for Ellsworth

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Ellsworth

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