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Seeds - American Basswood

Tilia americana

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Catégories: arbre, comestible, indigène, médicinale, nectarifère, nouveauté, vivace,

Aire de répartition indigène: MB, ON, QC, NB,

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For successful seedlings,
see the growing notes at the bottom of the page!

American basswood (Tilia americana), also called American linden, is a deciduous tree native to eastern North America, including Quebec. It can reach 25 metres in height and a trunk diameter of up to 1 metre. Its habit is broad and rounded, with a rounded crown in young trees that becomes more irregular with age. The leaves are heart‑shaped and measure 10 to 25 cm long. They are dark green above and paler beneath, turning yellow in fall. In early summer, it bears fragrant, pale yellow flowers in drooping clusters that are especially attractive to bees. The fruit is a small, hard nutlet attached to a characteristic leaf‑like bract that aids wind dispersal. American basswood prefers rich, moist, well‑drained soils and is often found in mixed forests and along streams in Quebec.

Medicinal and culinary uses
Young leaves can be eaten raw or cooked; they have a mild flavour and a tender, slightly mucilaginous texture, ideal for salads. The sap can be used as a refreshing drink or concentrated into syrup as a sweetener. The flowers, mild and fragrant, can be eaten raw in salads or brewed as an infusion. American basswood also has medicinal properties. A flower infusion is antispasmodic, diaphoretic, and sedative. It is used for hypertension, arteriosclerosis, anxiety‑related digestive disorders, colds, respiratory catarrh, and migraines. A tea or tincture of the leaves, flowers, and buds is traditionally employed for nervous headaches, restlessness, and painful digestion. Caution: Frequent consumption of flower tea may damage the heart. Always consult a professional before using any plant for medicinal purposes.

Ecological roles
American basswood plays an essential role in its ecosystem. Its flowers are an important nectar source for bees, contributing to high‑quality honey production. The tree provides habitat and food for many animals, including birds and small mammals. In addition, its leaves feed the caterpillars of certain Lepidoptera, thereby supporting local biodiversity.

 

American basswood seeds require cold stratification to ensure germination. See the cultivation notes below for more details.

Akène cannot assume any responsibility for the use of plants for therapeutic purposes. Always seek advice from a professional before using a medicinal or edible plant.

Growing Notes | Seeds - American Basswood

American basswood prefers rich, moist, well-drained soils. It grows best in full sun or partial shade. It is a fast-growing tree that can be propagated by seed, cuttings, or grafting.

For germination, American basswood seeds should be subjected to hot‑water scarification, followed by warm stratification and then cold stratification before sowing.

Hot‑water scarification: Soak the seed in hot water (around 60 °C) for 24 hours. The seed should swell if the treatment has worked. Repeat this step for any seed that did not absorb water and swell.

Stratification (warm and cold): Mix the seed with slightly moistened vermiculite in a Ziploc‑type sealed bag. Keep it at room temperature for about 60 days, then place it in the refrigerator for about 90 days.

Sowing: Empty the entire contents of the bag and broadcast sow. Cover very lightly, to less than 5 millimetres below the surface of the soil.

Difficult germination: Germination of basswood is highly unpredictable. Uniform germination is rare. The seeds are often water‑impermeable, which delays sprouting; it may occur many months after sowing. Most seed requires at least two years to germinate, and it often continues to germinate for three years or more after harvest. It is therefore important not to discard unsprouted seed after the first attempt; repeating the entire process may be necessary.

Seeds per packet: 25

Family: Malvaceae

Scientific name: Tilia americana

Life cycle: Perennial

Hardiness zone: 3a

Soil type:
Sandy to clayey

Soil moisture level: Humid

Soil - additional attributes: Adapts to various soil types, prefers rich and well-drained soil

Light: Sun

Blooming: June to August

Spacing: 2000 to 4000 cm

Height: 2500 cm

Deer resistance: Moderate

Stratification: 90 days

Scarification: No

Germination time: Unpredictable

Sowing depth: 12 mm