Hellebore 
Flora Frost Helleborus niger 'Advent Star'
| Flower type | Single |
| Leaf margin | Serrate |
| Winter hardness | Limited (USDA-zone 8) |
| Flower color | White-white-NN155D |
| Flower diameter | 7,5 - 8 cm |
| Plant height | 10 - 20 cm |
| Flowering month(s) | January; February; March |
| Leaf size | 4 - 5 cm |
| soil pH requirement | Alkaline (pH > 7,5); Neutral (pH 6,5 - 7,5); Slightly acidic (pH 4,5 - 6,5) |
| Light conditions | Semi-shades |
| Leaf division | Digitate-lobed |
| Leaf, main color | Dark green |
| Leaf colour, pattern | Unicolored |
| Flower color distribution | Unicolored |
| Toxicity (if consumed) | Toxic |
| Moisture requirements | Well-drained; Moist |
| Soil type | Humus rich |
The Helleborus niger 'Advent Star,' commonly known as the Christmas Rose, is a beautiful plant that brings joy to gardens during the winter months. With its single, white-white flowers and serrate leaf margin, it adds an elegant touch to any landscape.
While the 'Advent Star' is known for its winter beauty, it does have limited winter hardness, making it suitable for USDA-zone 8 or milder climates. However, with proper care and protection, it can thrive in colder regions as well.
The flowers of the 'Advent Star' are a stunning white-white color with a diameter of 7.5 - 8 cm. They bloom during the months of January, February, and March, bringing a touch of brightness to the winter season. The dark green leaves, with their digitate-lobed division, complement the flowers beautifully.
When it comes to soil preferences, the 'Advent Star' can adapt to different pH levels. It can grow in alkaline (pH > 7.5), neutral (pH 6.5 - 7.5), and slightly acidic (pH 4.5 - 6.5) soil. However, it prefers soil that is well-drained and rich in humus.
Light conditions are also essential for the 'Advent Star.' It thrives in semi-shaded areas, where it can receive some direct sunlight but is protected from intense heat and light. This makes it an excellent choice for gardens with partial shade.
While this plant is a beauty to behold, it's important to note that it is toxic if consumed. Therefore, it is not recommended to be planted in areas where children or pets may come in contact with it.
When it comes to moisture requirements, the 'Advent Star' prefers well-drained soil but can tolerate moisture to some extent. It's important to strike a balance, providing adequate watering without saturating the soil.
Overall, the Helleborus niger 'Advent Star' is a striking winter plant that provides beauty and elegance to gardens during the colder months. Its white flowers, dark green leaves, and adaptability to different soil and light conditions make it a favorite among gardeners. Just remember to take necessary precautions due to its toxicity, and with proper care, this Christmas Rose will thrive and bring joy year after year.
Market availability index by month:
| Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 3 | 4 | 3 |