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

It's possible to determine when it's possible to plant diascia by referring to the USDA zone info for Rye.

Planting Calendar for Diascia

Frost tolerance for diascia:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since diascia do well in moderate cold you can plant them a little earlier in the year than other frost tender plants.

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

The last month that you can plant diascia and expect a good harvest is probably September. If you wait any later than that and your diascia may not have a chance to really do well. If you are starting your diascia indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Rye. It might get as low as 0°F during the coldest months of winter.

It's important to remember that USDA zone info for Rye is not always accurate and the actual date of last frost is different every year. Half of the time in Rye you get surprised by a frost after April 15 so be sure to be ready to cover your diascia if you have a surprise late frost.

USDA Zone Info for Rye

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 Rye

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