Trees, Shrubs and Conifers: question for the experts on dwarf conifers, 1 by grampapa

grampapa wrote:
I would like to add a few dwarf conifers to a bed (z6a) this year, but will wait until spring if that is a better idea. if I can still plant this year, when? just wait until the summer heat is over or later in fall?

some I am considering, but not set in stone (feel free to comment...a couple of these were suggestions from Dax, but the rest I have just tried to choose what might work for me)

Abies koreana 'Silberlocke'
Tsuga canadensis 'Gentsch White'
Pinus mugo 'Iseli White Bud'
Pinus parviflora 'Tani-mano-uki'
Juniperus chinensis ‘Sea Green’
Chamaecyparis lawsoniana 'Treasure Island'
Chamaecyparis thyoides 'Red Star'
Cryptomeria japonica 'Little Diamond'
Chamaecyparis lawsoniana 'Duncanii'
Chamaecyparis lawsoniana 'Barry's Silver'

thanks for any help you can offer - the pic is of the heather/heath/conifer bed which is much too empty
gram