Growth Habit of Weeping Blue Atlas Cedar; What to Prepare for When Planting

Updated on March 22, 2017

Weeping blue atlas cedar is the prostrate form of blue atlas cedar. It is sold in garden centers trained to grow in a serpentine shape and then allowed to drape back to the ground. It looks pretty manageable, but knowledge of its growth habits is essential for it to become an asset rather than a liability in the landscape.

Left to itself, weeping blue atlas cedar tends to grow outwards. It eventually forms a spectacular mass of main trunks that sprawl out in many directions, each one with a curtain of blue foliage cascading downwards. It can grow up to ten feet high and over twenty feet wide. Not exactly the tame plant trained to snake up a bamboo stake that you see in the garden center.

Plant weeping blue atlas cedar as a large shrub and use as a focal point of interest. Make sure that it has proper room to grow, and expand the flowerbed to accommodate the tree, or simply duck when mowing. If you plant perennials around it to fill space, move them as the tree encroaches upon them. Weeping blue atlas cedar likes well-drained soil and is drought tolerant once it has become established.

Weeping blue atlas cedar is used as a foundation plant fairly often. As a foundation plant, it will do well for a few years and then outgrow its spot. To maintain blue atlas cedar as a foundation plant, it is absolutely essential to prune it regularly to keep it in shape. Prune it back in early spring before growth begins. Make sure that you keep some young growth and not remove more than a third of the plant. As a foundation plant, you will have to restrict all lateral and upright shoots, so you will need to stay on top of the pruning. Eventually, the tree will get knobby and gnarled, but as long as there is enough foliage to cover all the pruning marks, it should still look good.

Because the tree is a free-form weeping plant, it can be trained creatively. Train to grow as an arch and drape down to the ground, or allow it to grow only sideways to make a wall of cascading blue fountain foliage. To train weeping atlas cedar, a strong stake or support is necessary, plus material to fasten the tree to the support without damaging or girdling the plant.

By knowing the preferences and growth habits of weeping blue atlas cedar, homeowners can plant it accordingly and stay on top of maintenance. Through proper culture and care, your weeping blue atlas cedar will be an asset to the landscape for many years.


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