Gentiana 
Flora Frost Gentiana scabra Rocky Diamond Blue Eternity
| Leaf arrangement | crosswise opposite |
| Leaf tip | Pointed/acute |
| Flower type | Single |
| Leaf margin | Entire |
| Flower scent | Unscented |
| Winter hardness | Limited (USDA-zone 8) |
| Flower color | Blue-dark violet blue-096A |
| Flower diameter | 3,5 - 4 cm |
| Plant height | 10 - 20 cm |
| Flower length/hight | 5,5 - 6 cm |
| Inflorescence | Multi-flowered |
| Flowering month(s) | June; July; August |
| Leaf width | 1 - 2 cm |
| Leaf size | 4 - 5 cm |
| Leaf, main color | Dark green |
| Flower color distribution | Dotted |
| Moisture requirements | Moist; Well-drained |
Gentiana scabra, more commonly known as Rocky Diamond Blue Eternity or simply Gentian, is a stunning flowering plant that belongs to the Gentianaceae family. Native to Japan and China, this plant is popular among gardeners for its vibrant blue-dark violet blue flowers that bloom during the summer months of June, July, and August.
Gentiana scabra is a compact plant, reaching a height of 10 to 20 cm. Its leaves, arranged in a crosswise opposite pattern, are dark green and have a pointed or acute tip. The leaves have a width of 1 to 2 cm and a size of 4 to 5 cm. The entire leaf margin adds to the overall appeal of the plant.
The flowers of Gentiana scabra are single and have a diameter of 3.5 to 4 cm. With a length/height of 5.5 to 6 cm, these flowers form a multi-flowered inflorescence that adds a touch of elegance to any garden. The flower color is a mesmerizing blue-dark violet blue shade, which is further enhanced by its dotted color distribution. Although the flowers are not scented, they attract attention with their striking hue.
When it comes to cultivation, Gentiana scabra requires a moisture-rich and well-drained environment. It thrives in USDA Zone 8 and is known to tolerate limited winter hardness. Therefore, gardeners in this zone can grow this beautiful plant without much worry about frost damage.
To grow Gentiana scabra successfully, it is advisable to provide it with a partially shaded spot in the garden. The soil should be moist but well-drained to prevent waterlogging. Regular watering, especially during hot summer months, will keep the plant healthy and vibrant.
Gentiana scabra is often used as a decorative plant in rock gardens, borders, and containers. Its petite size makes it suitable for small spaces, and its eye-catching flowers provide a burst of color to any landscape. Additionally, it can be used as a cut flower in floral arrangements due to its long-lasting blooms.
Overall, Gentiana scabra is a charming plant with its beautiful blue-dark violet blue flowers and compact growth habit. Its ability to thrive in USDA Zone 8 and minimal maintenance requirements make it a popular choice for gardeners looking to add a touch of elegance to their outdoor spaces.
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