Abies nordmanniana Seeds | Nordmann Fir

Nordmann Fir (Abies nordmanniana) seed — Nordmann Fir (*Abies nordmanniana*): Pinaceae (pine family), native to The western Caucasus — Georgia, the Russian Black Sea slope and northern Armenia — and the Pontic mountains of north-eastern Turkey, on deep moist slopes between roughly 900 and 2,200 metres.

LATIN NAME: Abies nordmanniana

COMMON NAME: Nordmann Fir, Caucasian Fir

Plant Profile

The needles are flat, glossy dark green above and marked below with two bright white bands of stomata, each band set in a groove either side of the midrib. The tip is rounded or slightly notched rather than sharp, which is the quickest way to separate the species by touch from a spruce. Needles stand out on all sides of the shoot in a dense brush rather than lying flat and comb-like.

Fir cones stand up on the upper side of the branch rather than hanging beneath it, and the Nordmann fir carries some of the largest in the genus, barrel-shaped and heavy with resin. They do not drop whole. The scales detach one by one from the central axis and spin down in the wind, so by the end of the season the tree is left holding bare spikes.

The seed sits on a thin wing and is released from the upper side of the cone scale. Because the whole scale falls, the seed is broadcast over a wide radius around the parent, and the persistent axis remains on the branch for a year or more as an unmistakable marker of the species.

A Christmas tree is a pruned object. Growers cut the leader back to a strong bud each spring and clip the side shoots with long knives or a rotary shear, removing the dominant terminal growth so the remaining buds break along the branch. The first shaping starts on young stock and the work is repeated at least twice a season, because a fir that is left alone for a single year grows a thin, open skirt that no buyer will take.

The great hazard in nursery and plantation is root rot caused by Phytophthora species that thrive in waterlogged soil. On heavy ground the answer is drainage, deep cultivation and ridge planting rather than any spray. Woolly aphids colonise the bark of young stems above ground and can distort the leader, and the needles are grazed by gall mites in dry summers; both are managed by keeping the trees growing steadily rather than in a hard flush.

Science & Biotechnology

Young stems carry smooth grey-brown bark studded with small resin vesicles that burst under a thumbnail and release a balsam smell. The trunk stays smooth for many years, and the resin is one of the reasons a fir branch handled in a warm room leaves a sticky mark on the fingers.

The needle oil is dominated by monoterpenes, with bornyl acetate and camphene among the leading fractions alongside alpha-pinene and limonene; the oxygenated esters give the crushed foliage its cool, resinous, almost camphoraceous note. Distillers work the needles and small twigs rather than the wood, because the oil glands sit in the mesophyll of the leaf, and yields fall sharply once the foliage has dried in the sun. The extract is used in room sprays and in pine-scented household products rather than in fine perfumery, where the resinous fraction is considered coarse.

Uses & Benefits

Most of the cut trees sold in European cities in December are not spruce and not Scots pine but one Caucasian conifer, raised by the million on sandy former heathland in Jutland. The Nordmann fir won that market on a single commercial virtue: its needles stay on the branch for a long time in a warm room, so a tree bought in the first week of the month still looks fresh on the last one.

Growing from Seed

The best plantings are raised from seed collected in the high Caucasus, where the parent trees grow slowly and late-flushing, and the offspring break bud later in spring and so escape late frost. Danish and German growers maintain grafted seed orchards on selected clonal lines, and provenance trials across Europe have repeatedly separated the Turkish populations from the Caucasian ones. Cold, moist storage of the seed before sowing evens out emergence in the nursery bed, and seed that has dried out too hard unevenly wakes up.

Sow in a light, acid mix of two parts sieved leaf mould or composted bark to one part coarse sand, covering the seed by about twice its own thickness. Fir seedlings tolerate shade and resent baking, so a raised bed with a shade-cloth tunnel gives stronger first-year plants than a full-sun seedbed. Water gently but thoroughly, never let the bed dry out in the first season, and prick out the seedlings into deep containers once they have made their first true needles, because a fir that is checked in the seedbed rarely makes a straight leader afterwards. Plant out in late autumn or early spring while the roots are still active in cool soil, space the trees for the size of crown you intend to shear, and mulch around the stem without touching the bark.

Our Take

Nothing about this fir is quick, and the growers who make money from it treat the crop as a long rotation rather than a season. Start with good seed from a slow Caucasian source, keep the ground drained, and shear little and often. For comparison planting, see our pages on Korean fir, which cones at a small size and suits a small garden, and European silver fir, the species of the wet mountain slopes. If you need a faster conifer for a windbreak, Norway spruce establishes more cheaply, though it will not hold its needles indoors.

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