Betula costata – Costata birch

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Betulaceae

Betula costata – Costata birch

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Large tree with a broad ovoid to rounded, semi-open crown. Needs a lot of space due to its broad, fairly low branching pattern. Has attractively flaking branches and bark. Not to be confused with types of B. ermanii, especially ‘Blush’, which is still being grown as B. costata. One difference is that the bark of B. costata already starts to peel in the second or third year, while that of B. ermanii only starts when mature. Another is that the first-year twigs of B. costata are rough and those of B. ermanii are smooth. Finally, the leaves of B. costata are more than twice as long as they are wide, and have a straight leaf base. The leaves of B. ermanii are shorter and have a somewhat heart-shaped leaf base. Has poor tolerance for drought and is sensitive to (sea) wind.

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Specifications
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Height
12 – 25 (30) m
Crown
broad ovoid to round, half-open crown
Bark and branches
light grey-brown to greyish yellow, flaking
Leaf
ovoid to narrow ovoid, green, 5 - 10 cm
Flowers
catkins, ♀ single and erect, ♂ 4 - 6 cm, April
Fruits
ovoid fruiting catkins, 2 - 3 cm
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
few soil requirements, not drought-tolerant
Paving
tolerates no paving
Winter hardiness zone
5a (-28,8 to -26,1 °C)
Wind resistance
moderate
Other resistances
resistant to frost (WH 1 - 6)
Fauna tree
valuable for butterflies
Shape
clearstem tree, multi-stem treem
Origin
Eastern and central China, Korea, Manchuria
Clear stem tree Multi-stem tree acid soil calcareous soil loamy soil nutrient-poor soil peaty soil sandy soil tolerates no paving light-loving resistant to frost (WH 1 - 6) 1st size , taller than 12 metres half-open crown green yellowgreen early sprout average growing all species valuable for butterflies non-toxic (usually)
Frequently asked questions
Betula costata

Betula costata can eventually reach a height of 12 – 25 (30) m, depending on the site and climate conditions.

Betula costata has a average growing and can eventually reach a height of 12 – 25 (30) m, depending on the site and climate conditions.

The right time to plant Betula costata is during the dormancy period. In Western Europe, Betula costata with root balls can generally be planted from mid-November to late April, although this depends strongly on the climatic conditions and the species of tree.

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