Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's possible to figure out when you can plant scaevola by reviewing the USDA zone info for Ionia.

Planting Calendar for Scaevola

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

Scaevola are not cold tolerant which means that it's important to wait until it warms up after the last frost before you can plant them.

The earliest that you can plant scaevola in Ionia 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 scaevola and expect a good harvest is probably August. Any later than that and your scaevola may not have a chance to fully mature. Starting your scaevola indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

It's important to remember that USDA zone info for Ionia is an average and the actual date of last frost will vary from year to year. Half of the time in Ionia there is a last frost after April 15 so make sure that you are ready to cover your scaevola in the event of one of those late frosts.

USDA Zone Info for Ionia

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 Ionia

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