One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By reviewing the USDA zone info for Oil City you will be able to estimate when to plant purslane.

Planting Calendar for Purslane

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

Since purslane are one of those plants that can tolerate a tiny bit of cold weather you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant purslane 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 purslane and expect a good harvest is probably August. Any later than that and your purslane may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your purslane indoors.

Last Frost Date

The average date of last frost is April 15 in Oil City. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Oil City is an average the actual date of last frost will vary from year to year. Since half of the time in Oil City last frost occurs after April 15 be ready to cover your purslane in the event of one of those late frosts.

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.