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Dahurian larch is a deciduous conifer that is native to northeastern Siberia. Bright green needles turn yellow in fall before falling to the ground. This is a tree of very cold climates, ranging northward inside the Arctic Circle to tree line. In the wild, it grows to 40-60' (less frequently to 100') tall with a broad conic but open crown and horizontal branching. In the far northern areas of its range, it grows much smaller and shrubbier as it approaches tree line areas. Needles (to 1 1/2" long) in brush-like clusters appear at the ends of spur-like shoots along the branches. Cones (to 1 1/2" long) emerge purple but mature to light brown. Bark is rusty brown. Specific epithet honors Johann Georg Gmelin (1709-1755), botanist and author of The Flora of Siberia. (info source: missouribotanicalgarden.org)
Genus - Larix
Species - Gmelinii
Common name - Dahurian Larch
Pre-Treatment - Required
Hardiness zones - 3 - 6
Height - 80'-100' / 24.4m - 30.5m
Spread - 25'-30' / 7.6m - 9.1m
Plant type - Large tree
Vegetation type - Deciduous
Exposure - Full Sun, Partial Sun
Growth rate - Medium
Soil PH - Acidic, Neutral
Soil type - Light (sandy), medium (loamy), heavy (clay)
Water requirements - Average, Wet
Landscape uses - Feature Plant, Screening / Wind Break, Shade Trees
Germination rate - 88%
Leaf / Flower color - Green, autumn - Yellow, Light Yellow / --
| Useful Info | |
| Germination | Seed - sow late winter in pots in a cold frame. One months cold stratification helps germination. STRATIFICATION: Seeds need 30 days pre-chill period. Seeds can be stratified in dampened peat or sand, in a plastic box or bag at 4C or 5C in a refrigerator. The seeds should not be frozen or in a wet medium. It is best to give the seedlings light shade for the first year. As soon as they are large enough to handle, prick out the seedlings into individual pots. Although only a few centimetres tall, they can be planted out into their permanent positions in the summer providing you give them an effective weed-excluding mulch and preferably some winter protection for their first year. Otherwise grow them on in the cold frame for their first winter and plant them out in early summer of the following year. If you are growing larger quantities of plants, you can sow the seed in an outdoor seedbed in late winter. Grow on the seedlings in the seedbed for a couple of years until they are ready to go into their permanent positions then plant them out during the winter. |
