Before planting it is a good idea to find your USDA Zone info to determine 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.

By checking out the USDA zone info for Algona you will be able to estimate when it's the best time to plant scaevola.

Planting Calendar for Scaevola

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

You can not plant scaevola until after all chance of frost has passed because they do not do well in cold weather.

The earliest that you can plant scaevola in Algona 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. You probably don't want to wait any later than that or else your scaevola may not have a chance to really do well. You can get started a few weeks earlier by starting your scaevola indoors.

Last Frost Date

In Algona the average date of last frost happens on April 15. It might get as low as -20°F during the coldest months of winter.

Since the USDA zone info for Algona is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Algona there is a last frost after April 15 be ready to protect your scaevola in the event of a surprise late frost.

USDA Zone Info for Algona

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-20°F
Highest Expected Low	-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Algona

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