Veronica longifolia, commonly known as longleaf speedwell or garden speedwell, is a perennial plant in the family Plantaginaceae. It is native to Europe and Asia and is known for its tall spikes of blue, pink, or white flowers. The plant thrives in temperate climates and has a dormancy period during the winter months.
Veronica longifolia requires bright, direct sunlight for optimal growth. It prefers moderate temperatures and high humidity. Water the plant regularly to keep the soil evenly moist, but avoid waterlogging. This plant is best suited for outdoor gardens.
土壌
Veronica longifolia prefers well-draining loam soil with a slightly acidic to neutral pH. Ensure the soil remains moist but not waterlogged. Good drainage is essential to prevent root 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 summer, to promote healthy growth and flowering.
植え替え
Repot Veronica longifolia every 2-3 years or when the plant outgrows its container. Choose a slightly larger pot with good drainage. Repot in early spring before the growing season begins.
伝搬
Propagate Veronica longifolia through division or cuttings. The best time to propagate is in early spring or late summer. For division, separate the plant into smaller sections, each with roots and shoots. For cuttings, take a healthy stem cutting and root it in moist soil.
剪定
Prune Veronica longifolia after flowering to maintain its shape and encourage new growth. Remove spent flower spikes and any dead or damaged stems. Pruning helps to keep the plant healthy and vigorous.
毒性
Veronica longifolia is not known to be toxic to pets or humans. It is generally considered safe for gardens and households with pets and children.