Bare Root


Figure 1: 1+2, TRANSPLANT

Many conifers do not transplant well bare root when older than 3 years. Older than this most conifers should be supplied root balled or container grown. For seedling and transplant conifers, up to three years old, the following overall height grades apply.

Height grades : Forestry seedlings and transplants

cm	Form
10-15	Seedling
15-20	Seedling
20-25	Seedling
25-30	Undercut seedling/Transplant
30-40	Undercut seedling/Transplant
40-50	Transplant
50-60	Transplant
60-80	Transplant

e.g.

Pinus sylvestris
Pinus nigra
Picea abies
Picea sitchensis
Tsuga heterophylla

Cell Grown


Figure 2: CELL GROWN
(Pinus sylvestris, 100 cc cell,
20-40 cm height)

Height grades : Cell grown conifer seedlings

cm	Form
10-20	Seedling
15-30	Seedling
20-40	Seedling
40-60	Seedling

e.g.

Pinus nigra
Pinus sylvestris
Picea abies
Picea sitchensis

Rootballed

Height or spread grades : Dwarf/bushy types

cm			cm			cm
12-15			40-50	blue		90-100	blue
15-20	blue		50-60	yellow		100-125	white
20-25	yellow		60-70	red		125-150	blue
25-30	red		70-80	white		150-175	red
30-40	white		80-90	yellow		175-200	yellow
above 200 in 50 cm. steps.

 

e.g.

Chamaecyparis obtusa 'Nana Gracilis'
Juniperus squamata 'Blue Star'
Picea glauca 'Alberta Globe'
Pinus mugo pumilio

The colours indicate the internationally accepted marking system for the height/spread grades

 

 

Height grades : Upright growing: medium



Figure 3: ROOTBALLED CONIFER
(Taxus baccata, 100-125)

cm		cm		cm
30-40	white	80-90	yellow	175-200	yellow
40-50	blue	90-100	blue	200-225	blue
50-60	yellow	100-125	white	225-250	white
60-70	red	125-150	blue	250-275	yellow
70-80	white	150-175	red	275-300	red

 

 

e.g. Chamaecyparis lawsoniana ‘Ellwoodii’, Pinus mugo, Thuja occidentalis ‘Rheingold’, Taxus baccata ‘Fastigiata’

The colours indicate the internationally accepted marking system for the height/spread grades.

Height grades : Upright growing: vigorous



Figure 4: ROOTBALLED CONIFER
(Chamaecyparis lawsoniana
'Columnaris', 150-175 cm)

cm		cm		cm
40-60	blue	100-125	white	200-250	blue
50-60	yellow	125-150	blue	250-300	yellow
60-80	red	150-175	red	300-350	blue
80-100	yellow	175-200	yellow	350-400	white

 

 

e.g. Cedrus libani, Chamaecyparis lawsoniana, x Cupressocyparis leylandii, Thuja plicata + cvs.

The colours indicate the internationally accepted marking system for the height/spread grades.

Specimen conifers: The OVERALL HEIGHT and SPREAD is specified.

For species/cvs. With a vigorous growing top leading shoot, half of the annual top shoot is the upper limit for the measure of the height e.g. Pseudotsuga spp, Picea omorika.

Container Grown

Height and Spread grades : Dwarf/prostrate types


Figure 5: CONTAINER GROWN CONIFER
(Juniperus communis 'Compressa', 5 litre)

cm	e.g.
15-20	Chamaecyparis spp. Juniperus spp. Picea spp. Tsuga spp.
20-30
30-40

Height and Spread grades : Medium and vigorous types

cm	e.g.
20-30	Abies spp. Cedrus spp. Chamaecyparis spp. x Cupressocyparis spp. Juniperus spp.
40-50
50-60
60-70

 

For species/cvs. with a vigorous growing top leading shoot, half of the annual top shoot is the upper limit for the measure of the height. e.g. Pseudotsuga, Picea omorika.