When to Plant Xerianthemum in Concord, NH

The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. 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 determining when it's possible to plant xerianthemum is to refer to the USDA zone info for Concord.


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 Concord 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. If you wait any later than that and your xerianthemum may not have a chance to grow to maturity. If you are starting your xerianthemum indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Concord. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Concord is an average the actual date of last frost is different every year. Half of the time in Concord it frosts late in the year after April 15 so be sure to be ready to protect your xerianthemum if you have a surprise late frost.

USDA Zone Info for Concord

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-15°F
Highest Expected Low-10°F

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Concord

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