Scolymus grandiflorus is a spiny annual or biennial plant in the family Asteraceae, native to the Mediterranean region. With up to 75 cm high stems, it is the smallest of the species of Scolymus. Its stems are lined with uninterrupted spiny wings. It also has the largest flowerheads in the genus, of approximately 5 cm wide. It has yellow, sometimes yolk-yellow ligulate florets. Its vernacular name in Maltese is xewk isfar kbir, meaning "large yellow fin", cardogna maggiore in Italian, scoddi on Sicily, and scolyme à grandes fleurs in French.
The large-flowered golden thistle is fairly disease-resistant and generally not prone to illness. Still, it can be affected by pests and diseases present in its surroundings. These problems are typically mild. As for care, the plant has moderate maintenance needs. It should be pruned regularly to preserve a neat appearance and support healthy growth. Fertilizing can also help encourage flowering. This thistle is suitable for anyone with outdoor space, such as a garden or patio, and does not require extensive care experience. It may need more attention if grown indoors.
How to keep Scolymus Grandiflorus.
Fertilizer
Usually one fertilizer application in spring is enough for Large-flowered golden thistle, though several feedings can maximize growth. Feed about once every month to six weeks. Fertilization improves leaf appearance and function, promoting even color and a healthy texture. It also encourages root development and better nutrient uptake for long-term plant health.
Pruning
The large-flowered golden thistle is known for its striking golden blooms and sturdy structure. To maintain its health and encourage new growth, prune it in early to late spring to remove any dead stems. It's important to avoid pruning in the autumn to prevent frost damage. Additionally, using clean tools during pruning helps reduce stress on the plant and improves air circulation, which in turn lowers the risk of disease.
Botanical profile.
Other names.
