
(Protea cynaroides)

King protea, Giant protea, Sugarbush
Protea cynaroides is a flowering plant species native to South Africa. It is a member of the Protea family, which is known for its unique and showy flowers. The flowers of this plant are large, globe-shaped, and vary in color from pink to red to white. The leaves are leathery and dark green in color.
3-6 feet (0.9-1.8 meters) tall and 3-5 feet (0.9-1.5 meters) wide
The King Protea requires full sun exposure to thrive. It needs at least 6 hours of direct sunlight per day.
The King Protea prefers low to medium humidity levels. High humidity can lead to fungal diseases.
The King Protea requires a low-nitrogen fertilizer. It should be fertilized once every 3 months during the growing season.
This plant requires minimal pruning. Dead or damaged branches should be removed as needed.
The King Protea is generally pest and disease resistant. However, it can be susceptible to root rot and fungal diseases if overwatered.
Not suitable for indoor cultivation
This plant requires moderate watering. It should be watered when the top inch of soil is dry to the touch. It is important to avoid overwatering as it can lead to root rot.
This plant prefers warm temperatures between 60-80°F (15.5-26.5°C). It cannot tolerate frost or freezing temperatures.
The King Protea blooms from late spring to early summer.
The King Protea is moderately difficult to grow. It requires specific growing conditions and can be sensitive to overwatering.
USDA hardiness zones 9-11
The King Protea is the national flower of South Africa and is also known as the 'Giant Protea' due to its large flower head.