One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of estimating when it's possible to plant portulaca is to examine the USDA zone info for Passaic.

Planting Calendar for Portulaca

Frost tolerance for portulaca:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Portulaca do not do well in cold weather which means that you must wait until it warms up after the last frost has passed before you can plant them.

The earliest that you can plant portulaca in Passaic 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 portulaca and expect a good harvest is probably August. You probably don't want to wait any later than that or else your portulaca may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your portulaca indoors.

Last Frost Date

The average date of last frost is April 15 in Passaic. You can expect an average low temperature of 0°F in the coldest months of winter.

Keep in mind that USDA zone info for Passaic may not be accurate from year to year and the actual date of last frost is different every year. Half of the time in Passaic you get surprised by a frost after April 15 so make sure that you are prepared to cover your portulaca if you have one of those late frosts.

USDA Zone Info for Passaic

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 Passaic

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