One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Columbia should be looked at to figure out when it's possible to plant guara.

Planting Calendar for Guara

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

It's not a good idea to plant guara until after the last frost because they do not do well in cold weather.

The earliest that you can plant guara 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 guara and expect a good harvest is probably August. If you wait any later than that and your guara may not have a chance to grow to maturity. You can get started a little bit earlier by starting your guara indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Columbia. You can expect an average low temperature of -5°F in the coldest months of winter.

Since the USDA zone info for Columbia is just an average the actual date of last frost changes from year to year. Since half of the time in Columbia you get surprised by a frost after April 15 be ready to cover your guara if you have a late frost.

USDA Zone Info for Columbia

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Columbia

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