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 Yorkville can be reviewed to figure out when it's possible to plant brunfelsia.

Planting Calendar for Brunfelsia

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

Since brunfelsia are not cold tolerant it's important to wait until after the last frost has passed before you can plant them.

The earliest that you can plant brunfelsia in Yorkville 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 brunfelsia and expect a good harvest is probably August. Any later than that and your brunfelsia may not have a chance to grow to maturity. If you are starting your brunfelsia indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Yorkville is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Yorkville there is a last frost after April 15 so make sure that you are prepared to cover your brunfelsia in the event of a late frost.

USDA Zone Info for Yorkville

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Yorkville

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