Syringa 
Flora Frost Syringa vulgaris 'Ruhm von Horstenstein' per bunch
| Leaf tip | Acuminate |
| Flower type | Single |
| Fruit type | Capsule |
| Leaf margin | Entire |
| Flower scent | Different; Strong; Very strong; Sweet scented |
| Leaf type | Foliage leaf |
| Winter hardness | Excellent (USDA-zone 1,2,3,4) |
| Soil fertility | No poor soils |
| Leaf, general shape | Ovate (egg-shaped) |
| Plant height | 90 - 100 cm; 2,5 - 3 m; 4 - 5 m |
| Flower length/hight | 1 - 1,5 cm |
| Inflorescence | Panicle |
| Flowering month(s) | May |
| Structure (tissues) | Woody |
| Fruit size | 1 - 1,5 cm |
| Leaf duration | Deciduous |
| soil pH requirement | Neutral (pH 6,5 - 7,5); Alkaline (pH > 7,5) |
| Light conditions | Sunny |
| Leaf division | Simple |
| Plant, growth type | Erect |
| Flower sex (distribution) | Monoecious (flowers bisexual) |
| Leaf, main color | Dark green |
| Plant structure/crown structure | Normal |
| Leaf colour, pattern | Unicolored |
| Flower color distribution | Unicolored |
| Toxicity (if consumed) | Not or barely |
The Syringa vulgaris 'Ruhm von Horstenstein' is a common lilac variety that is known for its beautiful flowers and strong fragrance. It is a deciduous plant with ovate (egg-shaped) dark green foliage. The leaves have an acuminate tip and an entire margin.
During the flowering season in May, the 'Ruhm von Horstenstein' produces single flowers in a panicle inflorescence. The flowers are small, measuring 1-1.5 cm in length. They have a unicolored distribution, meaning that the entire flower is of the same color. The flower color can vary, but it is usually a shade of purple, which is typical for lilacs.
The fragrance of the 'Ruhm von Horstenstein' lilac is different from other lilacs. It is described as strong and sweet-scented, making it a popular choice for gardeners who want to enjoy the delightful aroma of lilacs in their outdoor spaces.
This lilac variety is known for its excellent winter hardiness, making it suitable for USDA zones 1 to 4. It can withstand cold temperatures and harsh winter conditions, ensuring that it will thrive in colder regions.
In terms of size, the 'Ruhm von Horstenstein' lilac can grow to a height of 90-100 cm or 2.5-3 meters. However, it can also reach a height of 4-5 meters, depending on the growing conditions and pruning practices. The plant has an erect growth type, meaning that it grows upwards in a vertical manner.
The fruit of this lilac variety is a capsule, measuring 1-1.5 cm in size. The leaves, on the other hand, are foliage leaves that have a simple division. They are unicolored, with a dark green color that gives the plant a lush appearance.
When it comes to soil preferences, the 'Ruhm von Horstenstein' lilac prefers neutral to alkaline soil. It thrives in well-draining soil that is not too nutrient-poor. It is important to ensure that the soil pH is within the range of 6.5-7.5 for optimal growth.
For best results, this lilac variety should be planted in a sunny location where it can receive plenty of sunlight. It is well-suited for gardens and landscapes where it can add beauty and fragrance to outdoor spaces.
One important note to keep in mind is that the 'Ruhm von Horstenstein' lilac is not or barely toxic if consumed. However, it is always recommended to keep plants out of reach of children and pets to prevent any potential harm.
Overall, the Syringa vulgaris 'Ruhm von Horstenstein' is a popular lilac variety that offers stunning flowers, strong fragrance, and excellent winter hardiness. It is a great choice for gardeners looking to add a touch of beauty and fragrance to their outdoor spaces.
Market availability index by month:
| Jan. | Feb. | Mar. | Apr. | May | Jun. | Jul. | Aug. | Sep. | Oct. | Nov. | Dec. |
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| 1 | 1 | 1 | 1 | 2 | 4 | 4 | 1 | 1 | 1 | 1 | 1 |