Rhododendron 
Flora Frost Rhododendron (Simsii Grp) 'Osta'
| Flower type | Single; Slightly doubled |
| Leaf type | Foliage leaf |
| Flower color | White-white-999D |
| Soil fertility | Not very demanding |
| Flower diameter | 6,5 - 7 cm |
| Inflorescence | Raceme |
| Structure (tissues) | Woody |
| Leaf surface | Hairy |
| Leaf size | 4 - 5 cm |
| soil pH requirement | Slightly acidic (pH 4,5 - 6,5) |
| Light conditions | Sunny; Semi-shades |
| Leaf division | Simple |
| Plant, growth type | Erect |
| Leaf, main color | Dark green |
| Flower color distribution | Bicolored |
| Flower, secondary color(s) | Red-dark purple red-060A |
| Soil type | Humus rich |
Rhododendron 'Osta' is a stunning variety of the Simsii Group, known for its beautiful single to slightly doubled flowers. The flowers have a diameter ranging from 6.5 to 7 cm and are predominantly white in color, with hints of a bicolored distribution. The secondary colors of the flowers range from red to dark purple-red.
This rhododendron variety has woody tissues and grows in an erect manner, reaching a height of approximately 4 to 5 cm. The foliage leaves are dark green in color, with a hairy surface, adding to the overall appeal of the plant. The leaf size ranges from 4 to 5 cm, making it a compact and visually appealing plant.
When it comes to soil fertility, Rhododendron 'Osta' is not very demanding. It can thrive in soil pH levels ranging from slightly acidic (pH 4.5 - 6.5). The plant prefers slightly shady or sunny conditions for optimal growth. It is important to provide the plant with enough light to encourage the production of abundant and vibrant flowers.
The 'Osta' rhododendron blooms in racemes, which are long clusters of flowers that add a touch of elegance and grace to the overall appearance of the plant. The combination of the white flowers with bicolored distribution and the dark green foliage creates a visually striking contrast that stands out in any garden or landscape.
For the best growth and development, Rhododendron 'Osta' thrives in humus-rich soil. Humus provides essential nutrients and organic matter that enhance the plant's overall health and vigor. Adequate moisture levels should also be maintained, as rhododendrons prefer well-draining soil to prevent waterlogging.
Overall, Rhododendron 'Osta' is a beautiful addition to any garden, with its stunning flowers and attractive foliage. Its compact size and demanding soil requirements make it a versatile plant that can be cultivated even in small spaces. Whether planted as a focal point in a garden bed or in a container on a patio, this rhododendron variety is sure to bring joy to any gardener or flower enthusiast.
Market availability index by month:
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| 3 | 3 | 3 | 4 | 3 | 1 | 1 | 1 | 2 | 2 | 3 | 3 |