When to Plant Achimenes in Allentown, PA

One of the first steps you take when you are estimating 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 estimating when it's the best time to plant achimenes is to examine the USDA zone info for Allentown.


Planting Calendar for Achimenes

Frost tolerance for achimenes: Not tolerant of frost.
When to plant: After the last frost.

Since achimenes are not cold tolerant it is necessary to wait until after the last frost before you can plant them.

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

The earliest that you can plant achimenes in Allentown 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 achimenes and expect a good harvest is probably August. If you wait any later than that and your achimenes may not have a chance to grow to maturity. Starting your achimenes indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Allentown. You should expect an average low temperature of -5°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Allentown may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Allentown it frosts late in the year after April 15 so make sure that you are ready to cover your achimenes if you have 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.