The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Columbia you can determine when it's possible to plant scaevola by using the USDA zone info.

Planting Calendar for Scaevola

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

You can not plant scaevola until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant scaevola in Columbia 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 grow to maturity. You can get started a couple of weeks earlier by starting your scaevola indoors.

Last Frost Date

The average date of last frost is March 15 in Columbia. It might get as low as 15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Columbia is just an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Columbia you get a frost after March 15 be ready to protect your scaevola if you have a surprise late frost.

USDA Zone Info for Columbia

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Columbia

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