When to Plant Ageratum in Red Lion, PA

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Red Lion you can figure out when it's a good idea to plant ageratum by referring to the USDA zone info.


Planting Calendar for Ageratum

Frost tolerance for ageratum: Not tolerant of frost.
When to plant: After the last frost has passed.

It's probably not a good idea to plant ageratum until after the last frost when the weather gets warmer because they are not cold tolerant.

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

The earliest that you can plant ageratum in Red Lion 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 ageratum and expect a good harvest is probably August. If you wait any later than that and your ageratum may not have a chance to fully mature. You can get started a little bit earlier by starting your ageratum indoors.

Last Frost Date

The average date of last frost is April 15 in Red Lion. You should expect an average low temperature of 0°F in the coldest months of winter.

Remember that the actual date of last frost is just an average because it is based on the USDA zone info for Red Lion and it is different every year. Half of the time in Red Lion you get a frost after April 15 so make sure that you are ready to protect your ageratum in the event of a surprise late frost.

USDA Zone Info for Red Lion

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 Low0°F
Highest Expected Low5°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 Red Lion

You may be interested in your other planting guides for Red Lion.