When Does a Red Cedar Tree Make Seeds?

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by Katherine Barrington, Demand Media

Also called the western red cedar or Pacific red cedar, red cedar trees (Thuja plicata) are native to California and typically grow between 50 and 120 feet high. These trees thrive in full or partial sun and prefer moist, well-drained soil, though they can grow in a variety of substrates. Red cedars begin to produce seed-bearing cones between the ages of 10 and 20 years, but they reach their peak production between 70 and 80 years. Once they begin growing viable seed cones, red cedars typically produce seed-bearing cones every two to three years.

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