The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can figure out when it's possible to plant didiscus in Zone 1a by checking out the USDA zone info.

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 mild cold which tells us that you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant didiscus in Zone 1a is June. However, you really should wait until July if you don't want to take any chances.

The last month that you can plant didiscus and expect a good harvest is probably July. Any later than that and your didiscus may not have a chance to really do well. You can get started a couple of weeks earlier by starting your didiscus indoors.

Last Frost Date

The average date of last frost is June 15 in Zone 1a. You should expect an average low temperature of -60°F in the coldest months of winter.

Since the USDA zone info for Zone 1a is an average the actual date of last frost will vary from year to year. Half of the time in Zone 1a it frosts late in the year after June 15 so make sure that you are prepared to protect your didiscus in the event of one of those late frosts.

USDA Zone Info for Zone 1a

Here is the info for USDA Zone 1a.

Average Date of Last Frost (spring)	June 15
Average Date of First Frost (fall)	July 15
Lowest Expected Low	-60°F
Highest Expected Low	-55°F

This means that on a really cold year, the coldest it will get is -60°F. On most years you should be prepared to experience lows near -55°F.

Plants to Grow in Zone 1a

You may be interested in your other planting guides for Zone 1a.