One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A way of figuring out when it's possible to plant common hollyhock is to examine the USDA zone info for East Orange.

Planting Calendar for Common hollyhock

Frost tolerance for common hollyhock:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Common hollyhock do ok in mild cold which tells us that you can plant them just a bit earlier in the year than more sensitive plants.

The earliest that you can plant common hollyhock in East Orange is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant common hollyhock and expect a good harvest is probably September. If you wait any later than that and your common hollyhock may not have a chance to really do well. Starting your common hollyhock indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Always keep in mind that the actual date of last frost is just an average because it is based on the USDA zone info for East Orange and it is different every year. Half of the time in East Orange you get a frost after April 15 so make sure that you are prepared to protect your common hollyhock if you have one of those late frosts.

USDA Zone Info for East Orange

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 East Orange

You may be interested in your other planting guides for East Orange.