Lavandula Intermedia

Description

Lavandula intermedia, commonly known as the Lavandin, is a hybrid plant species that originated from the crossbreeding of two lavender species: L. angustifolia and L. latifolia. This plant is widely cultivated for its essential oils, which are used in various industries such as perfumes, cosmetics, and aromatherapy. Lavandula intermedia has a robust and fragrant aroma that is more camphorous than the sweeter L. angustifolia, making it a popular choice in fragrance blends.

Taxonomic Information

Appearance

Lavandula intermedia is a shrub that can grow up to 3 feet tall and wide. It has silvery-green leaves that are narrow and lance-shaped, measuring up to 3 inches long. The plant produces spikes of flowers that range from pale lilac to deep purple, with each flower measuring up to 1 inch long. The flowers are arranged in whorls on the spikes, which can grow up to 6 inches long.

Care Guide

Lavandula intermedia is a hardy plant that requires minimal care. Here are some tips on how to care for this plant:

• Water: Lavandula intermedia prefers well-drained soil and does not like to be overwatered. Water the plant deeply once a week during the growing season and reduce watering during the winter months.
• Fertilization: Fertilize the plant once a month during the growing season using a balanced fertilizer with equal amounts of nitrogen, phosphorus, and potassium.
• Soil: Lavandula intermedia prefers alkaline soil with a pH range of 6.4 to 8.3. Amend the soil with lime or dolomite if the pH is too acidic.
• Sunlight: Lavandula intermedia requires at least 6 hours of full sun per day. Plant the shrub in a location that receives plenty of sunlight.
• Hardiness Zones: Lavandula intermedia is hardy in USDA zones 5 to 9.

Common Pests & Diseases

Lavandula intermedia is generally resistant to pests and diseases. However, here are some common issues that you may encounter:

• Spider mites: These tiny pests can infest the plant and cause yellowing of the leaves. Use a strong blast of water to dislodge them or apply insecticidal soap.
• Root rot: Overwatering or poorly drained soil can cause the roots to rot. To prevent this, make sure that the soil is well-drained.
• Powdery mildew: This fungal disease can cause a white powdery coating on the leaves. To prevent this, avoid overhead watering and provide adequate air circulation.

Habitat

Lavandula intermedia is native to the Mediterranean region, where it grows in sunny, rocky, and well-drained soil. This plant is also widely cultivated in other parts of the world, including Europe, North America, and Australia.

Question and Answer

Q: Can Lavandula intermedia be grown indoors?

A: Yes, you can grow Lavandula intermedia indoors, but it prefers to be grown outdoors in full sun.

Q: How often should I prune Lavandula intermedia?

A: Prune Lavandula intermedia once a year, in early spring, to promote bushier growth and prevent the plant from becoming too leggy.

Q: How long does Lavandula intermedia bloom?

A: Lavandula intermedia blooms from late spring to mid-summer, depending on the climate and growing conditions.

Q: What is the difference between Lavandula intermedia and Lavandula angustifolia?

A: Lavandula intermedia is a hybrid between Lavandula angustifolia and Lavandula latifolia, while Lavandula angustifolia is a pure species. Lavandula intermedia has a more camphorous scent and larger flowers than Lavandula angustifolia.

Related Plants

• Lavandula angustifolia
• Lavandula latifolia
• Lavandula x intermedia ‘Grosso’
• Lavandula stoechas

References

• Missouri Botanical Garden. (n.d.). Lavandula x intermedia. Retrieved from http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?taxonid=286310&isprofile=0&cv=5
• RHS. (n.d.). Lavandula x intermedia. Retrieved from https://www.rhs.org.uk/Plants/56051/Lavandula-x-intermedia/Details
• Taylor, J. (2013). Lavender: How to Grow and Use the Fragrant Herb (Second ed.). North Adams, MA: Storey Publishing.