Cold Hardiness :

To benefit the general gardening public in southern NH and northern MA GHHF is trialing various trees and shrubs observing their overall performance throughout the four season of a given year. Some of these plants are new selections which are being trialed for their perfomance in our USDA determined Hardiness Zone 5 with many selections predominantly grown in warmer climates. We hope the following reports will assist the homeowner and landscape professional in making informed tree and shrub purchases.

Calycanthus 'Venus'

Calycanthus sinensis

Acer palmatum cultivars

And others.......

Please check back later to see a complete list of our trial plants and photos from our test plots.