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 Louisville should be reffered to in order to figure out when to plant didiscus.

Planting Calendar for Didiscus

Frost tolerance for didiscus:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Didiscus do well in very little cold which tells us that you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant didiscus in Louisville is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant didiscus and expect a good harvest is probably August. If you wait any later than that and your didiscus may not have a chance to fully mature. If you are starting your didiscus indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Louisville. In the coldest months of winter you should expect an average low temperature of 0°F.

Since the USDA zone info for Louisville is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Louisville there is a last frost after April 15 so just be sure to be ready to cover your didiscus if you have a surprise late frost.

USDA Zone Info for Louisville

Here is the info for USDA Zone 7a.

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

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

Plants to Grow in Louisville

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