The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Perth Amboy you can estimate when to plant four-o-clock flower by using the USDA zone info.

Planting Calendar for Four-o-clock flower

Frost tolerance for four-o-clock flower:	Not tolerant of frost.
When to plant:	After the last frost has passed.

You really shouldn't plant four-o-clock flower until after all chance of frost has passed because they require warm weather.

The earliest that you can plant four-o-clock flower in Perth Amboy 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 four-o-clock flower and expect a good harvest is probably August. If you wait any later than that and your four-o-clock flower may not have a chance to fully mature. Starting your four-o-clock flower indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Perth Amboy. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Perth Amboy may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Perth Amboy you get a frost after April 15 so make sure that you are prepared to protect your four-o-clock flower if you have a late frost.

USDA Zone Info for Perth Amboy

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 Perth Amboy

You may be interested in your other planting guides for Perth Amboy.