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.

A common way of getting a good idea when you can plant four-o-clock flower is to consult the USDA zone info for Yonkers.

Planting Calendar for Four-o-clock flower

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

Since four-o-clock flower require warm weather it is important to wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant four-o-clock flower in Yonkers 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. You probably don't want to wait any later than that or else your four-o-clock flower may not have a chance to grow to maturity. If you are starting your four-o-clock flower indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Yonkers. It might get as low as 0°F during the coldest months of winter.

Since the USDA zone info for Yonkers is just an average the actual date of last frost can change quite a bit from year to year. Since half of the time in Yonkers last frost occurs after April 15 be ready to cover your four-o-clock flower if you have a surprise late frost.

USDA Zone Info for Yonkers

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 Yonkers

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