Rosa hemisphaerica, also known as the sulphur rose, is a rose species with pale yellow flowers native to western Asia. The wild form, known as Rosa raphinii, has single flowers with five petals. A double-flowered form was one of the first yellow roses introduced to European gardens; John Bellenden Ker Gawler stated in 1815 that the species had been cultivated in England for nearly 200 years. The scent of the flowers has been described as unpleasant.
How to keep Rosa Hemisphaerica.
Water
The sulfur rose thrives in well-drained, moist soil and should not be waterlogged. It is important to water the plant when the soil surface becomes slightly dry, taking care to avoid splashing the leaves. For potted sulfur roses, water every 2-3 days during periods of drought, but reduce the frequency in the winter. When the plant is budding to flowering, increase the amount of water given.
Pruning
The Sulfur Rose is a vigorous grower, but it requires careful pruning to avoid diseases and pests, particularly in humid, low-light, or poorly ventilated areas. After the plant blooms, it’s important to remove any faded flowers and thin out excessive branches. For vine forms, maintain a length of 2-3 meters, while bush forms should be pruned to one-third of their height, leaving 4-6 strong branches intact.
Botanical profile.
Other names.
