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

By looking at the USDA zone info for Solon it's a good idea to estimate when you can plant pentas.

Planting Calendar for Pentas

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

You can not plant pentas until after the last frost when the weather gets warmer because they require warm weather.

The earliest that you can plant pentas in Solon 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 pentas and expect a good harvest is probably August. If you wait any later than that and your pentas may not have a chance to fully mature. If you are starting your pentas indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Solon. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Solon may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Solon it frosts late in the year after April 15 be ready to protect your pentas in the event of a late frost.

USDA Zone Info for Solon

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 Solon

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