One of the best tools that you have as gardeners to help us determine 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.

A common way of determining when it's possible to plant common hollyhock is to check out the USDA zone info for Lake Grove.

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 can survive in mild cold which means 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 Lake Grove 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 fully mature. You can get started a little bit earlier by starting your common hollyhock indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Lake Grove. You should expect an average low temperature of 0°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Lake Grove is not always accurate and the actual date of last frost is different every year. Half of the time in Lake Grove it frosts late in the year after April 15 so make sure that you are prepared to cover your common hollyhock if you have a late frost.

USDA Zone Info for Lake Grove

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 Lake Grove

You may be interested in your other planting guides for Lake Grove.