Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Oil City you can determine when to plant verbena by using the USDA zone info.

Planting Calendar for Verbena

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

Since verbena are barely cold tolerant you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant verbena in Oil City 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 verbena and expect a good harvest is probably August. Any later than that and your verbena may not have a chance to really do well. You can get started a few weeks earlier by starting your verbena indoors.

Last Frost Date

On average the last frost is on April 15 in Oil City. You can expect an average low temperature of -15°F in the coldest months of winter.

It's important to remember that USDA zone info for Oil City may not be accurate from year to year and the actual date of last frost will vary from year to year. Since half of the time in Oil City you get surprised by a frost after April 15 be ready to cover your verbena if you have a late frost.

USDA Zone Info for Oil City

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 Oil City

You may be interested in your other planting guides for Oil City.