| Description | DeGroot's Spiral (Thuja occidentalis) is a narrow cultivar with a pyramid-like shape having short branches and dark green leaves. |
|---|---|
| Pronunciation | (thu-ya)(ok-si-den-TA-lis) |
| Plant Type | All Plants, Shrubs Coniferous |
| Hardiness Zone | 3-7 |
| Sunlight | sun |
| Moisture | average |
| Soil & Site | average |
| Fruit | small woody cones |
| Leaves | spiral dense fine dark green foliage |
| Roots | fibrous |
| Dimensions | 6-12 by 3-5 feet (HS), narrow growth habit |
| Maintenance | A light shearing may be needed to maintain size. Heavy snow can cause the plants to split and open up. I have tied them together to bring them back into shape. Like most Arborvitae it will accumulate a good amount of dead foliage in the center. I like to tap the plant with the flat side of a leaf rake to knock lose the brown foliage. All Arborvitae are among the easiest of the evergreen shrubs to transplant |
| Propagation | cuttings |
| Cultivar Origin | Selection of North American native species Thuja occidentalis. |
| Misc Facts | AKA: Degroot's Emerald Spire Arborvitae |
| Author's Notes | I have seen this plant many times and there is some variation in the spiral effect of the plant. Seems to be better in the younger plants. |
| Notes & Reference | #01-Manual of Woody Landscape Plants (Michael Dirr) |
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