When to Plant Iberis in Royersford, 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.

One way of determining when it's a good idea to plant iberis is to check out the USDA zone info for Royersford.


Planting Calendar for Iberis

Frost tolerance for iberis: Tolerant of some frost.
When to plant: Up to 5 weeks before last frost.

Iberis can survive in some cold which tells us that you can plant them a little earlier in the year than more sensitive plants.

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

The earliest that you can plant iberis in Royersford 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 iberis and expect a good harvest is probably September. You probably don't want to wait any later than that or else your iberis may not have a chance to really do well. You can get started a couple of weeks earlier by starting your iberis indoors.

Last Frost Date

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

Keep in mind that USDA zone info for Royersford is not always accurate and the actual date of last frost will vary from year to year. Since half of the time in Royersford last frost occurs after April 15 be ready to protect your iberis if you have a late frost.

USDA Zone Info for Royersford

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 Royersford

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