Lilium columbianum, commonly known as the Columbia lily or tiger lily, is a species of lily native to the Pacific Northwest of North America. It is a bulbous geophyte that thrives in temperate climates. The plant produces striking orange flowers with dark spots and is often found in meadows and open forests.
Lilium columbianum requires moderate temperatures and indirect bright light for optimal growth. It prefers a humid environment and should be watered when the soil partially dries out. The plant benefits from a dormancy period during the winter months.
土壤
This lily prefers well-draining loam soil with a slightly acidic to neutral pH. Ensure the soil is rich in organic matter to support its growth. Good drainage is essential to prevent bulb rot.
肥料
Use a balanced fertilizer with an N-P-K ratio of 10-10-10. Fertilize the plant during the growing season, typically in spring and early summer, to support healthy growth and flowering.
换盆
Repot Lilium columbianum bulbs every few years to refresh the soil and provide more space for growth. The best time to repot is during the dormancy period in late fall or early winter. Handle the bulbs carefully to avoid damage.
传播
Propagate Lilium columbianum by dividing the bulbs during the dormancy period. Carefully separate the offsets from the parent bulb and plant them in well-draining soil. Ensure the new bulbs are planted at the correct depth.
修剪
Pruning is not typically required for Lilium columbianum. However, you can remove spent flowers to encourage more blooms and cut back the foliage after it has died back naturally in the fall.
毒性
Lilium columbianum is toxic to pets, particularly cats. All parts of the plant, including the flowers, leaves, and bulbs, contain toxic compounds that can cause severe kidney damage if ingested.