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How to Propagate Crimson King Maple

The crimson king Norway maple tree is a variety that is known for the green-purple foliage it produces through out the summer season. The tree produces spring-time maroon-yellow flowers that turn to helicopter-wing shaped seeds. The crimson king Norway maple is propagated through seed collection in late summer and fall. The seeds must be planted after collection and sowed outdoors in fall because they require a wintering period to germinate.

Collect the maple seeds by gently removing them from the tree branches. Place the seeds in a paper bag or envelope and label the collection date and plant species. Do not use plastic bags as they retain moisture and cause seed rot.

Separate the two helicopter winged maple seeds if they are still attached. The seeds do not need to be separated from the wings.

Rake a seed-starting location to remove debris and rocks. Press the seed into the soil at a depth that is the same as the diameter of the seed. Lightly cover the seed with sand or sifted soil.

Apply a thin layer of leaf or straw mulch over the seed to prevent the seed from being washed away.

Water the seed well after planting in the fall season. Water the seed area again in the spring when the soil appears dry.

Mark the planting location to protect the seed and seedling growth.

Crimson King Maple Problems

The Crimson King maple is a cultivated variety of the Norway maple tree. Its characteristics are flat, circular seeds, large pointed leaves and sap-filled shoots and leaves. It is a tall tree and offers a large amount of shade. The Crimson King maple has a shallow root network and dense shade. The Crimson King maple is susceptible to verticillium wilt, which causes branches to wilt and die. Another problem is girdling of roots around the trunk base, which gradually chokes the tree and can be fatal. The removal of girdling roots can be harmful to the tree as the roots are functional, and should be followed up with fertilization. Horticultural oil sprays control scales.


Plant the seeds several feet apart to prevent moisture and light competition.

Plant seeds in several locations as some may disappear to rodents or from harsh weather conditions.

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