Shikoku Tennam

Arisaema sikokianum

Arisaema sikokianum is a unique plant rarely seen in Korea. The following is information regarding the growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and control methods of Arisaema sikokianum.

Growth Characteristics
- Environmental Conditions: Arisaema sikokianum thrives in partial shade and prefers fertile, well-drained soil. It grows better in cool environments than during hot and humid summers.
- Growth Habits: It grows primarily in spring and early summer; in autumn, the above-ground parts wither and it enters a dormant period. It overwinters underground in the form of tubers and produces new shoots the following year.

Propagation Methods
- Seed Propagation: Collect seeds from mature fruits and plant them in the autumn. Germination rates may be relatively low, and sufficient growth may not occur in the first year.
- Tuber Propagation: It can be propagated by dividing the tubers. You can carefully separate and plant the tubers during the winter dormancy period.

Cultivation Method
- Planting Location: It is best to plant in partial shade with good drainage. It thrives in natural environments, such as under trees or in rock crevices.
- Watering: Avoid overwatering and ensure the soil does not dry out. Excessive watering can cause the tubers to rot.
- Fertilizer: Apply a small amount of slow-release fertilizer in the spring to support new growth.

Uses in the Garden
- Decorative Value: Its unique shape and color can add a focal point to the garden. It also works well as a background plant in shaded flowerbeds.
- Naturalistic Gardens: Suitable for gardens aiming to recreate a natural landscape, it blends well with other shade-loving plants.

Major Pests and Control Methods
- Diseases: Root rot is the most common problem. Proper drainage is important, and overwatering must be avoided. - Pests: It is not particularly susceptible to common garden pests, but can be controlled using soapy water or insecticides if necessary.
- Control Methods: As a preventive measure, maintain spacing between plants to ensure good ventilation, and use plant protection agents if necessary.

This information will help you keep your Shikoku Amur daisy healthy and create a beautiful garden landscape.

Plant Type
Plant Family	Araceae
Height	30~60cm
Spread	30~60cm
Colors	White, green, brown
Bloom Period	May to August
Water Needs	commonly
Exposure	semi-shaded area
Freezing Resistance	-15°C

American amur
Arisaema triphyllum

Arisarum provoscadeum
Arisarum proboscideum