2.1.4
Root Ball Size
All box-grown, field potted, field boxed, collected, plantation grown, bare
root, balled and burlapped, container grown, processed-balled, and
in-ground fabric bag-grown root balls shall conform to ANSI Z60.1. All
wrappings and ties shall be biodegradable. Root growth in container grown
plants shall be sufficient to hold earth intact when removed from
containers. Root bound plants will not be accepted.
[2.1.4.1
Mycorrhizal fungi inoculum
Before shipment, root systems shall contain mycorrhizal fungi inoculum.
]2.1.5
Growth of Trunk and Crown
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NOTE: The form of growth desired for specimen or
special purpose plant material shall be described.
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2.1.5.1
Deciduous Trees
A height to caliper relationship shall
be provided in accordance with ANSI
Z60.1. Height of branching shall bear
a relationship to the size and
species of tree specified and with the
crown in good balance with the
trunk. The trees shall not be "poled"
or the leader removed.
a.
Single stem: The trunk shall be reasonably straight and
symmetrical with crown and have a persistent main leader.
b.
Multi-stem: All countable stems, in aggregate, shall average the
size specified. To be considered a stem, there shall be no
division of the trunk which branches more than 150 mm 6 inches
from ground level.
2.1.5.2
Palms
Palms shall have the specified height as measured from the base of the
trunk to the base of the fronds or foliage in accordance with ANSI Z60.1.
The palm shall have straight trunk and healthy fronds or foliage as typical
for the variety grown in the region of the project. Palms trimmed or
pruned for delivery shall retain a minimum of 150 mm 6 inches of foliage at
the crown as a means of determining plant health.
2.1.5.3
Deciduous Shrubs
Deciduous shrubs shall have the height and number of primary stems
recommended by ANSI Z60.1. Acceptable plant material shall be well shaped,
with sufficient well-spaced side branches, and recognized by the trade as
typical for the species grown in the region of the project.
2.1.5.4
Coniferous Evergreen Plant Material
Coniferous Evergreen plant material shall have the height-to-spread ratio
recommended by ANSI Z60.1. The coniferous evergreen trees shall not be
"poled" or the leader removed. Acceptable plant material shall be
exceptionally heavy, well shaped and trimmed to form a symmetrical and
tightly knit plant. The form of growth desired shall be as indicated.
SECTION 02930
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