Woody > Clethra > Clethra alnifolia > Clethra alnifolia 'Crystalina'
Clethra alnifolia
'Crystalina'
Sugartina® Summersweet
Origin: Bred at North Carolina State University, selected from Clethra alnifolia 'Ruby Spice', United States Plant Patent issued December 7, 2010.
| Family |
| Clethraceae |
| Genus |
| Clethra |
| Species |
| alnifolia |
| Cultivar |
| 'Crystalina' |
| Category |
| Woody |
| Type |
| Shrub (deciduous) |
| Registered Name |
| Sugartina® |
| Patent Number |
| PP21,561 |
| USDA Hardiness Zone |
| 4 |
| Canadian Hardiness Zone |
| 2 - 5a |
| RHS Hardiness Zone |
| H7 |
| Temperature (°C) |
| -35 - (-29) |
| Temperature (°F) |
| -30 - (-20) |
| Height |
| 90 cm |
| Spread |
| 90 cm |
Photographs
Description and Growing Information
Flowering Period
| General Description |
| A dwarf summersweet with fragrant white flowers and dark glossy green foliage that turns yellow in autumn. |
| Landscape |
| Great for mass plantings or shrub borders, and is effective as a hedge. |
| Cultivation |
| Grow in full sun or partial shade in an average, medium to wet soil. Prefers partial shade and consistent moisture (should not be allowed to dry out). Will tolerate clay soil and full shade. Any pruning should be done in late winter. |
| Shape |
| Rounded habit. |
| Pests |
| No serious pests or diseases, although spider mites may be a problem in dry conditions. |
| Habitat |
| Horticultural origin. |
| Leaf Description |
| Leaves are a glossy dark green, to 7-10 cm in length, turning variable shades of yellow to golden brown in autumn. |
| Flower Description |
| Flowers bloom in narrow, upright panicles on the current years growth, are sweetly fragrant, and pure white. They are very attractive to butterflies and bees. |
| Fruit Description |
| Dark brown seed capsules that may last into winter. |
| Propagation |
| Propagate by cuttings. |
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