Balsam fir

Abies balsamea

In other languages: Balsemzilverspar (Nederlands) · Sapin baumier (Français)

Balsam fir comes from the cool forests of Canada and the north-eastern United States. It is a slender, conical conifer with flat, dark green needles that smell strongly of balsam when crushed. Two white bands run along the underside of the needles, and the upright, purplish cones break up on the tree. The species itself grows to 15 m, but often struggles in our warmer, drier climate. In gardens you mainly find the dwarf form ‘Nana’, a dense, round ball of half a metre for a rock garden, heather garden or pot.

Updated on 9 October 2026

Light
Sun or partial shade
preferably some sun
Moisture
Normal to wet
must not dry out
Legal basis
Sand or loam
acid to neutral
Hardiness
Fully hardy
down to -45 °C
Size
15 m
tall, 5 m wide

Key facts
Height	15 m
Native to Belgium	No, planted
Poisonous to people and pets	Not known to be poisonous

Identify

Balsam fir: how do you recognise it?

Habit: The species: slender, narrow cone up to 15 m tall and 5 m wide. ‘Nana’: a dense, round ball of about 50 cm, only after many years.
Needles: Flat, 1.5–2.5 cm, glossy dark green with two white bands underneath; strongly scented.
Cones: Upright, 5–8 cm, purple at first, later brown; they break up on the tree.
Bark: Smooth and grey, with blisters full of fragrant resin.
Roots: Fairly shallow; it likes cool, moist soil and does not tolerate prolonged drought.

Plants: April–May and September–October

In your garden

Why grow it?

A wonderful balsam scent from the needles, especially on a warm day or when you brush past.
Evergreen: structure and colour all year, winter included.
The dwarf form ‘Nana’ stays small and is ideal for a rock garden, heather garden or large pot.
Extremely hardy: frost is never a problem.
Older trees carry attractive upright, purplish cones.

Balsam fir: where does it grow best?

Sun to partial shade; a spot with some afternoon shade protects it from heat.
Cool, moist, acid to neutral soil: sand or loam rich in humus. It dislikes chalky soil.
Moisture-retentive to moist, but never drying out: not a hot, dry spot against a south-facing wall.
Give the species 4–5 m of space; ‘Nana’ 60–80 cm, or a pot at least 30 cm wide.

Light: Sun and partial shade
Soil type: Sand or loam
Acidity: Acid or neutral
Moisture: Normal or wet
Size: 15 m tall, 5 m wide
Hardiness: Hardy (to -45 °C)

Goes well with

Rhododendron: Likes the same acid, moist soil.
Heather: A low, flowering ground cover around ‘Nana’ in a heather garden.
Japanese maple: Fine leaves and autumn colour beside the dark needles.
Ferns: Green underplanting in the light shade of a larger tree.

Maintenance

Balsam fir: when and how to plant it?

Plant in April–May and September–October.

Plant in April–May or September–October, root-balled or from a pot.
Dig a hole twice as wide as the root ball and mix in leaf mould or ericaceous compost.
Set the tree at the same depth as before: the top of the root ball level with the soil. Loosen the wrapping at the top, but leave it in place.
Firm in and water straight away with a full watering can, even if it is raining.
Spread a mulch of bark or pine needles around the base.
Water weekly in dry spells during the first two summers.

Care

Water: For the first two years, water generously every week in dry weather. After that only in long dry spells; in a pot regularly, even in winter during frost-free weather.
Feeding: Usually unnecessary. On poor soil, a little compost or conifer feed in March.
Mulching: A layer of bark or pine needles keeps the roots cool and moist and the soil acid.
Snow: Shake wet snow off ‘Nana’ and young trees, so the branches do not splay apart.
Leader: Keep a single leader on the species: remove a competing top shoot.

Tip: For a small garden or a pot, buy the dwarf form ‘Nana’: seedlings become large trees. Give it a cool spot with acid, moist soil and a layer of mulch.

Balsam fir: when to prune it?

When: Pruning is not needed: it keeps its shape naturally.

How:

Cut out dead or damaged branches back to healthy wood.
If two leaders form, keep the stronger one and remove the other.
To keep ‘Nana’ a little more compact, cut only into young green growth.

Caution: Never cut into bare old wood: a fir does not grow new needles there.

Pruning calendar and basic rules

Propagation

Seed: Sow seed of the species outdoors in a cold frame in autumn, or in spring after a few weeks of cold. Seedlings grow slowly and produce the ordinary large tree, not a dwarf form.
Cuttings and grafting: Dwarf forms such as ‘Nana’ are propagated vegetatively by nurseries; this is difficult for amateur gardeners.

Balsam fir: how does it get through the winter?

Hardy to −45 °C.

Extremely hardy (to about −45 °C): never needs protection in Belgium.
Late spring frost can damage the soft young shoots; they grow back later.
In a pot: keep it sheltered and water in dry, frost-free weather, as the needles keep losing moisture.
Shake heavy, wet snow off the branches.

Diseases and pests

Brown needles: Often caused by drought, heat or drying winds, or by wet, compacted soil. Mulch, water in dry spells and choose a cooler spot.
Adelgids: White, woolly tufts on shoots and trunk; growth stalls. Hose off with a strong jet of water and cut out badly affected shoots.
Red spider mite: In hot, dry summers, especially on dwarf forms: dull, yellowish-grey needles with fine webbing. Regular spraying with water helps.
Root rot: The tree yellows and dies back on wet, poorly drained soil. Plant in a well-drained spot, slightly raised if necessary.

Through the year

January: Shake wet snow off the branches.
March: Top up the mulch. A little compost on poor soil.
April: Planting. Watch out for late frost.
May: Planting. Fresh green new shoots.
June: Water in dry spells. Check for adelgids.
July: Water in heat and drought, especially in a pot.
August: Water in dry spells. Check dwarf forms for red spider mite.
September: Plant root-balled trees.
October: Planting. Apply mulch.
December: Cut a few sprigs for a fragrant Christmas decoration.

You and this species

Did you know?

Its resin was once used to make Canada balsam, a clear glue for lenses and microscope slides.
In North America it is one of the most popular Christmas trees.
As with all firs, the cones stand upright and break up on the tree, so you rarely find whole cones underneath.

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