One of the best tools that you have as gardeners to help us estimate your gardening schedule is the 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 Millersville can be used to determine when you can plant hibiscus.

Planting Calendar for Hibiscus

Frost tolerance for hibiscus:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You should not plant hibiscus until after the last frost because they do not do well in cold weather.

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

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Millersville. It might get as low as -5°F during the coldest months of winter.

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

USDA Zone Info for Millersville

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 Millersville

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