When to Plant Xerianthemum in State College, PA

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.

In State College you can figure out when it's the best time to plant xerianthemum by using the USDA zone info.


Planting Calendar for Xerianthemum

Frost tolerance for xerianthemum: Tolerant of a very small amount of frost.
When to plant: Up to 3 weeks before last frost.

Xerianthemum are one of those plants that can tolerate a tiny bit of cold weather which tells us that you can get them planted just a bit earlier than more sensitive plants.

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

The earliest that you can plant xerianthemum in State College is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant xerianthemum and expect a good harvest is probably August. Any later than that and your xerianthemum may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your xerianthemum indoors.

Last Frost Date

In State College the average date of last frost happens on April 15. It might get as low as -5°F during the coldest months of winter.

Since the USDA zone info for State College is just an average the actual date of last frost will vary from year to year. Half of the time in State College you get surprised by a frost after April 15 so make sure that you are ready to cover your xerianthemum if you have a surprise late frost.

USDA Zone Info for State College

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 State College

You may be interested in your other planting guides for State College.