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AGM plants have been through a rigorous trial and assessment programme. They are:
This plant will provide nectar and pollen for bees and the many other types of pollinating insects.
It is included in an evolving list of plants carefully researched and chosen by RHS experts. Divided into 3 groups these lists, linked below, are maintained by a team of RHS staff and are reviewed annually.
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Other common names Austrian pine black pine
Calabrian pine Corsican pine larch pine
Family Pinaceae
Genus Pinus can be shrubs or large, evergreen trees, some species with attractive bark, developing an irregular outline with age and bearing long needle-like leaves in bundles of 2, 3 or 5; conspicuous cones may fall or remain on the tree for years
Details P. nigra is a large evergreen tree developing an irregular, dense crown with age. Leaves dark green, paired, to 12cm in length. Cones ovoid, pale brown when mature
Plant range SE Europe
Foliage Evergreen
Habit Bushy
Hardiness
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H7
Full Sun
Aspect South-facing or West-facing or East-facing
Exposure Exposed or Sheltered
Chalk
Clay
Loam
Sand
MoistureWell-drained
SoilChalk, Clay, Loam, Sand
pHAcid, Alkaline, Neutral
Ultimate height Higher than 12 metres
Ultimate spread wider than 8 metres
Time to ultimate height 20-50 years
Cultivation Grow in any well-drained soil. See Trees: buying and planting specimens
Propagation Propagate by seed sown in containers in a cold frame in spring
Suggested planting locations and garden types Hedging & Screens Flower borders and beds Low Maintenance Coastal Cottage & Informal Garden
Pruning No pruning required
Pests May be attacked by adelgids, conifer aphid species, pine sawfly and pine shoot moth
Diseases May be subject to various needle cast diseases
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