9/15/2023 0 Comments Big leaf maple fallOregon State University, Forest Research Laboratory General Characteristicsīigleaf maple is second to red alder among native hardwood species in abundance and in commercial importance in the Pacific Northwest. This information was originally published in Hardwoods of the Pacific Northwest, S.S. Oregon Producers and Users of Bigleaf Maple.Keep the soil moist until the seeds sprout.Oregon maple, large-leaf maple, broadleaf maple Bury the seeds 1/4 to 1 inch deep into the soil, ensuring that the seeds are covered. Plant the seeds by removing them from the peat and rinsing them with clean water. You can wait up to 55 more days, if there is still a possibility of frost and plant the seeds as late as early summer.ĩ. You can plant the seeds outdoors if all danger of frost has passed. Add water as needed to restore the moisture.Ĩ.Ĝheck the weather forecast after 35 days. Open the plastic bag periodically to make sure the peat is still moist. The seeds need to be kept at 34 to 46 degrees Fahrenheit for a minimum of 35 days, but not longer than 90 days.ħ. This will serve as the cold stratification. Place the sealed bag in the bottom of the refrigerator. The seeds must be buried in the moist peat in order to germinate.Ħ. Shake the bag to distribute the peat so that it covers the seeds completely. Push the seeds into the peat and seal the plastic bag. Use more peat and plastic bags if you want to germinate more than three seeds.ĥ. Place up to three seeds into the plastic bag containing the peat. Remove the seeds from the bowl of water and rinse them off under clean running water. Place the moist peat into a zip-lock plastic bag.Ĥ. Squeeze most of the water out of the peat, leaving it moist but not soggy. Hold a handful of sterile peat planting medium under a running faucet until the peat is soaked. Allow the seeds to soak for a minimum of 24 hours but no longer than 48 hours.ģ. Place the seeds in a glass bowl and cover with room temperature water. Start the cold stratification process one month before the beginning of spring.Ģ. Leaf / Flower color - Green, autumn - gold / Yelowġ. Landscape uses - Feature Plant, Shade Trees Water requirements - Average Water, Ample Water This tree contains very sweet sap that can be distilled to create syrup that equals that of sugar maple. Further north its bark becomes home to mosses and ferns. Big-leaf maple creates habitat for wildlife, has high ornamental value and easily naturalizes. It is a good choice for expansive rural home sites with high water tables and perennially wet conditions in the west. Grow this tree in sites with good moisture and partial sun. The change to gold begins with the cooling of late summer nights. The new leaves are bright yellow green and darken through summer. Trees produce inconspicuous wind-pollinated flowers in the early spring, which mature into winged seeds called samaras. The big leaves can be truly enormous and are borne heavily on upright stems. In warmer regions it grows at the base of north-facing slopes where perpetual shade and summer dampness support its need for moisture during the growing season. It is nearly always found in conjunction with streams and creeks. It is counted among the few true western native maples, its range extending from foothills of Alaska to southern California and eastward to the Sierra Nevada Mountains. This immense deciduous tree bears the largest leaves of all maple species and is spectacular when it turns golden in the fall.
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