When to Plant Garlic in Allentown, PA

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Allentown you can determine when you can plant garlic by reviewing the USDA zone info.


Planting Calendar for Garlic

Frost tolerance for garlic: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Garlic tend to make it in cold weather which means that you can plant them a lot earlier in the year than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant garlic
Possibly ok, but a risky time to plant garlic
Probably not a good time to plant garlic

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

Last Frost Date

The average date of last frost is April 15 in Allentown. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for Allentown is not always accurate the actual date of last frost will vary from year to year. Half of the time in Allentown it frosts late in the year after April 15 so always be ready to protect your garlic in the event of a surprise late frost.

USDA Zone Info for Allentown

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-5°F
Highest Expected Low0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Allentown

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