Big Flower Yeonyeong Elementary School

Trillium grandiflorum

Trillium grandiflorum is a perennial herbaceous plant native to North America, possessing the following characteristics:

Growth Characteristics
- Sunlight Requirements: It prefers partial shade. It is best to avoid direct sunlight.
- Soil: It thrives in fertile, well-drained soil. A pH of slightly acidic to neutral is suitable.
- Humidity: It prefers an environment that retains moisture but has good drainage.
- Temperature: It grows well in cool regions; excessively hot environments should be avoided.

Propagation Methods
- Seed Propagation: Propagation is possible by seeds, but germination may take a long time.
- Division: Mature plants can be propagated by carefully dividing and planting them. This is generally a more effective method than seeds.

Cultivation Methods
- Planting Time: Generally planted in spring or autumn.
- Planting Distance: Plant at intervals of approximately 30 cm.
- Watering: Water to maintain moisture, but avoid overwatering. - Fertilizer: Apply an appropriate amount of organic fertilizer during the growing season.

Uses in the GardenLarge-flowered Lilac is well-suited for shady gardens, under trees, or in shaded flowerbeds. Its large white flowers bloom in the spring, adding beauty to the garden.

Important Pests and Control Methods
- Diseases: Fungal diseases may occur due to improper care. It is important to maintain spacing between plants to ensure good ventilation.
- Pests: Slugs are a common problem. Physical removal or biological control methods can be used.
- Control Methods: Pests and diseases can be prevented through proper watering management and ensuring adequate ventilation. Since it grows slowly and is sensitive in the early stages, periodic observation is necessary.

Based on this information, you can effectively manage and cultivate a healthy Large-flowered Lilac.

Plant Type
Plant Family	Yeoro and
Height	30~60cm
Spread	30cm
Colors	white
Bloom Period	April to June
Water Needs	commonly
Exposure	semi-shaded area
Freezing Resistance	-10°C

Grandiflorum f. roseum
Trillium grandiflorum f. roseum

Red Age Plant
Trillium erectum