Here is a list of groundcovering shrubs. Note the botanical names when shopping. The word in single quotes is the cultivar name and denotes special characteristics.

Full sun:

Bar Harbor juniper, Juniperus horizontalis ‘Bar Harbor’ (native)

Creeping blue spruce, Picea pungens ‘Glauca Procumbens’

Creeping larch, Larix decidua ‘Prostrata’;

Japgarden juniper, Juniperus procumbens

Sargent juniper, Juniperus chinensis ‘Sargentii’

Scotch pine, Pinus sylvestris ‘Hillside Creeper’

Sun to Part shade:

Eastern sand cherry, Prunus pumila var. depressa ‘Gus Melquist’

(native)

Japanese spreading plum yew, Cephalotaxus harringtonia

‘Prostrata’

Deep shade:

Japanese spreading plum yew, Cephalotaxus harringtonia

‘Drupacea’

Flowering:

Dwarf fothergilla, Forthergilla gardenii ‘Harold Epstein’

Fragrant sumac, Rhus aromatica ‘Gro low” (native)

Japanese spirea, Spiraeae japonica ‘Alpina’

Slopes:

Forsythia ‘gold tide,’ Forsythia ‘Courtasol’ Gold Tide

Vigarosa rose, ‘Starry Night’ or ‘Sea Foam’