hollyhock

Alcea rosea

Characteristics and Cultivation Information of the Hollyhock (Alcea rosea)

#Growth Characteristics:
- Plant Morphology: The hollyhock is a perennial herbaceous plant that typically grows up to 2 meters tall. It is characterized by a large main stem and leaves covered in fine hairs.
- Flowering Period: Flowers usually bloom between June and August, and come in various colors such as red, pink, and white.
- Environmental Adaptability: It prefers sunny locations and well-drained soil. While it is relatively resistant to cold, it does not thrive in overly humid environments.

#Propagation Methods:
- Seed Propagation: It can be propagated by sowing seeds in the spring. Methods include direct sowing or growing seedlings indoors before transplanting.
- Transplanting: Transplanting seedlings when they have about 3 to 4 true leaves results in a high survival rate.

#Cultivation Methods:
- Soil Preparation: Mix compost and sand to improve drainage before planting.
- Water Management: Do not overwater, and be careful not to let the soil dry out completely. - Fertilizer: Use organic fertilizer as a base fertilizer during the growing season, and apply additional phosphate fertilizer during the flowering season.

#Uses in the Garden:
- Landscape Creation: Thanks to its tall stature and showy flowers, it is excellent as a hedge or background plant. Its vibrant colors can add a focal point to the garden.
- Placement Advice: It is ideal for planting as a background plant, and planting it alongside low-lying plants can add visual depth.

#Important Pests and Control Methods:
- Diseases: Rust and powdery mildew may occur. Ensure good ventilation and immediately remove any diseased leaves.
- Pests: Aphids and snails are common pests. Control them by removing them manually or using mild insecticides.
- Prevention: Pay attention to preventing pests by disinfecting the soil periodically and maintaining appropriate spacing between plants.

Owls are relatively easy to care for and are eye-catching plants in the garden due to their showy flowers. They can be grown healthily through proper environmental management and pest control.

Plant Family	Malvaceae
Height	1~3m
Colors	Red, pink, purple, yellow
Bloom Period	June to August
Water Needs	commonly
Exposure	semi-shaded area
Freezing Resistance	-20°C

Prince's Ear Tree
Albizia kalkora

Plate flower 'Black Knight'
Alcea rosea 'Blacknight'