guide to container size |
unclassified
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Any container of which any one of three dimensions (i.e., height, inside top diameter, and inside bottom diameter) does not fall within the below specifications.
Nursery Plant Container or Pot Sizes
The following plant container maximum and minimum dimensions are the limits recommended for plant containers classes as #1, #2, #3, #5, #7, and #15. The three dimensions are height, inside top diameter, and inside bottom diameter. |
|
Container Class |
Vertical Height
(Max. - Min.) |
Inside Top Diameter
(Max. - Min.) |
Inside Bottom Diameter
(Max. - Min.) |
#1 |
7.00" - 6.00" |
7.50" - 6.00" |
6.00" - 5.00" |
#2 |
8.75" - 7.50" |
8.75" - 7.50" |
7.75" - 6.50" |
#3 |
10.00" - 8.50" |
10.00" - 9.50" |
9.50" - 8.50" |
#5 |
12.50" - 11.00" |
12.00" - 9.75" |
10.25" - 8.75" |
#7 |
12.50" - 11.00" |
14.00" - 12.25" |
12.25" - 11.00" |
#15 |
18.00" - 15.00" |
17.25" - 15.00" |
14.50" - 13.50" |
|
|
shade trees |
Types 1 & 2 |
caliper |
minimum diameter ball &
basket |
1/2 in. |
12 in. |
3/4 in. |
14 in. |
1 in. |
16 in. |
1 1/4 in. |
18 in. |
1 1/2 in. |
20 in. |
1 3/4 in. |
22 in. |
2 in. |
24 in. |
2 1/2 in. |
28 in. |
3 in. |
32 in. |
3 1/2 in. |
38 in. |
4 in. |
42 in. |
4 1/2 in. |
48 in. |
5 in. |
54 in. |
5 1/2 in. |
57 in. |
6 in. |
60 in. |
7 in. |
70 in. |
8 in. |
80 in. |
|
7 in. |
|
8 in. |
|
|
trees |
Types 3 & 4 |
height (up to 6 ft.) caliper (6 ft. & over) |
minimum diameter ball & basket |
2 ft. |
10 in. |
3 ft. |
12 in. |
4 ft. |
14 in. |
5 ft. |
16 in. |
3/4 in. |
16 in. |
1 in. |
18 in. |
1 1/2 in. |
20 in. |
1 3/4 in. |
22 in. |
2 in. |
24 in. |
2 1/2 in. |
28 in. |
3 in. |
32 in. |
3 1/2 in. |
38 in. |
4 in. |
42 in. |
4 1/2 in. |
48 in. |
5 in. |
54 in. |
5 1/2 in. |
57 in. |
6 in. |
60 in. |
70 in. |
|
80 in. |
|
|
|
spreading, semi-spreading
& globe or dwarf broadleaf evergreens |
Types 1, 2, 3 |
spread |
minimum diameter ball &
basket |
18 in. |
10 in. |
2 ft. |
12 in. |
2 1/2 in. |
14 in. |
3 ft. |
16 in. |
3 1/2 in. |
18 in. |
4 ft. |
21 in. |
|
|
cone & broad up-right
broadleaf evergreens |
Types 4 & 5 |
height |
minimum diameter ball &
basket |
18 in. |
10 in. |
2 ft. |
12 in. |
3 ft. |
14 in. |
4 ft. |
16 in. |
5 ft. |
20 in. |
6 ft. |
22 in. |
7 ft. |
22 in. |
8 ft. |
27 in. |
9 ft. |
30 in. |
10 ft. |
34 in. |
12 ft. |
38 in. |
14 ft. |
42 in. |
16 ft. |
46 in. |
18 ft. |
50 in. |
|
|
spreading, semi-spreading
& globe or upright dwarf conifers |
Types 1, 2, 3 |
spread |
minimum diameter ball &
basket |
9 in. |
8 in. |
12 in. |
8 in. |
15 in. |
10 in. |
18 in. |
10 in. |
2 ft. |
12 in. |
2 1/2 ft. |
14 in. |
3 ft. |
16 in. |
3 1/2 ft. |
18 in. |
4 ft. |
21 in. |
5 ft. |
24 in. |
6 ft. |
28 in. |
7 ft. |
32 in. |
8 ft. |
36 in. |
|
|
conical & broad conifers |
Types 4 & 5 |
height |
minimum diameter ball &
basket |
12 in. |
10 in. |
18 in. |
10 in. |
2 ft. |
12 in. |
3 ft. |
14 in. |
4 ft. |
16 in. |
5 ft. |
20 in. |
6 ft. |
22 in. |
7 ft. |
24 in. |
8 ft. |
27 in. |
9 ft. |
30 in. |
10 ft. |
34 in. |
12 ft. |
34 in. |
14 ft. |
42 in. |
16 ft. |
46 in. |
18 ft. |
50 in. |
|
|
single stem trees |
Types 1, 2, 3 |
caliper |
minimum diameter ball &
basket |
1/2 in. |
10 in. |
3/4 in. |
10 in. |
1 in. |
12 in. |
1 1/4 in. |
14 in. |
1 1/2 in. |
16 in. |
1 3/4 in. |
18 in. |
2 in. |
20 in. |
2 1/2 in. |
20 in. |
3 in. |
28 in. |
|
|
small spreading trees |
Type 4 |
height (ft.)
caliper (in.) |
minimum diameter ball &
basket |
2 ft. |
10 in. |
3 ft. |
10 in. |
4 ft. |
12 in. |
5 ft. |
12 in. |
3/4 in. |
12 in. |
1 in. |
14 in. |
1 1/2 in. |
14 in. |
1 1/4 in. |
14 in. |
1 3/4 in. |
18 in. |
|
|
columnar conifers |
Type 6 |
regular growing |
rapid growing |
height |
minimum diameter ball/basket |
height |
minimum diameter ball/basket
|
12 in. |
10 in. |
12 in. |
8 in. |
18 in. |
10 in. |
2 ft. |
9 in. |
2 ft. |
12 in. |
3 ft. |
9 in. |
3 ft. |
13 in. |
3 ft. |
9 in. |
4 ft. |
14 in. |
4 ft. |
12 in. |
5 ft. |
16 in. |
5 ft. |
14 in. |
6 ft. |
18 in. |
6 ft. |
16 in. |
7 ft. |
20 in. |
|
|
8 ft. |
22 in. |
|
|
9 ft. |
24 in. |
|
|
10 ft. |
27 in. |
|
|
12 ft. |
30 in. |
|
|
14 ft. |
33 in. |
|
|
16 ft. |
36 in. |
|
|
18 ft. |
40 in. |
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deciduous shrubs |
Plants dug to the specifications in this
table should have the center of the stem or cluster of
stems of the plant in the center of the earth ball. A
tolerance of 10% of the diameter is the maximum deviation
allowable. |
height |
minimum diameter ball &
basket |
12 in. |
8 in. |
18 in. |
9 in. |
2 ft. |
10 in. |
3 ft. |
12 in. |
4 ft. |
14 in. |
5 ft. |
16 in. |
6 ft. |
18 in. |
7 ft. |
20 in. |
8 ft. |
22 in. |
9 ft. |
24 in. |
10 ft. |
26 in. |
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