Sequoia sempervirens 'Illa Martin' – Sequoia sempervirens 'Illa Martin'

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Sequoia sempervirens 'Illa Martin' – Sequoia sempervirens 'Illa Martin'

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'Illa Martin' is a large to very large tree with the same narrow pyramidal growth habit as the species Sequoia sempervirens. The tree branches well, forming a dense crown. The most striking difference with the species is that its needles are blue-green in summer. In winter, however, they turn dark green. Also, 'Martin' has proven to be more hardy than the species and other cultivars. A specimen of S. sempervirens in Trompenburg Gardens & Arboretum came well through the winter of 1955-1956, one of the harshest winters of the 20th century. Of some 10,000 seedlings from 1952, only five survived this winter. It was not until 1999 that Dick van Hoey Smith christened the tree 'Martin', after Dr Martin of Sequoiafarm in Kaldenkirchen, Germany, who had distributed the seeds. These seeds originally came from California. Quite coincidentally, several clones were named 'Martin' by several people. It was then decided to change the name to 'Illa Martin', Dr Martin's wife. In Germany, the various, partly unnamed clones are still called Martin Klon. More hardy than other clones of S. sempervirens, 'Illa Martin' is more widely applicable as a solitary in parks and large gardens. But this cultivar is also suitable as avenue tree in green spaces.
Availability
High (2)
Specifications
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Height
30 - 40 m
Width
6-10m
Crown
narrow pyramidal
Bark and branches
twigs reddish brown, bark orange brown, thick and softly fibrous, flaking in long strips
Leaf
needles, arranged in spiral shape, dark green, 1.5 - 2,5 cm, blue green
Flowers
inconspicuous
Fruits
hanging, ovoid cones, about 1,5 - 3 cm
Spines/thorns
None
Toxicity
usually not toxic to people, (large) pets and livestock
Soil type
sandy, loamy soil, well-permeable
Soil moisture
suitable for wet soil
Paving
tolerates no paving
Winter hardiness zone
7b (-14,9 to -12,3 °C)
Wind resistance
good, also tolerates sea wind
Other resistances
can withstand wind
Application
coastal areas
Shape
clearstem tree, clearstem conifer, specimen conifer
Origin
U.S. National Arboretum, Washington D.C., USA, 2003
Clear stem conifer Clear stem tree Specimen conifer acid soil loamy soil peaty soil sandy soil tolerates no paving suitable for shadow suitable for wet soil can withstand wind narrow conical 3rd size, smaller than 6 metres half-open crown bluegreen green fast growing all species non-toxic (usually)
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Frequently asked questions
Sequoia sempervirens 'Illa Martin'

Sequoia sempervirens 'Illa Martin' can eventually reach a height of 30 - 40 m, depending on the site and climate conditions.

Sequoia sempervirens 'Illa Martin' is fast growing and can eventually reach a height of 30 - 40 m, depending on the site and climate conditions.

The right time to plant Sequoia sempervirens 'Illa Martin' is during the dormancy period. In Western Europe, Sequoia sempervirens 'Illa Martin' 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.

Sequoia sempervirens 'Illa Martin' blooms in .
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