Dictamnus: The Burning Bush with a Fragrant Aura

Dictamnus, also known as Burning Bush, Gas Plant, or Dittany, is a captivating perennial that adds a touch of mystery and intrigue to the garden. Its unique ability to emit a flammable vapor, coupled with its attractive flowers and fragrant foliage, makes it a standout choice for those seeking something truly special.

Dictamnus is an upright, clump-forming perennial that features sturdy stems adorned with glossy, dark green leaves. Its most remarkable feature is its tall, slender flower spikes that bloom in late spring to early summer. These spikes are laden with showy, five-petaled flowers in shades of white, pink, or purple, often with darker veining. The flowers and foliage emit a pleasant, lemony fragrance, adding another dimension of appeal to this fascinating plant.

• Native Habitat: Dictamnus is native to Europe and Asia, where it grows in open woodlands and rocky slopes.
• Landscaping Design Tips: Dictamnus is an excellent choice for adding vertical interest and a touch of drama to perennial borders and cottage gardens. It can be used as a specimen plant or in groups to create a bold statement. Its fragrant flowers and foliage make it a sensory delight, and its unique ability to emit a flammable vapor adds an element of intrigue. It pairs well with other perennials such as daylilies, irises, and campanulas.
• Planting and Care: Dictamnus prefers full sun to partial shade and well-drained soil. It is relatively low-maintenance once established but may require some watering during dry periods. It is slow to establish, and dislikes being disturbed, so choose a permanent location for planting.
• Taxonomy: Dictamnus belongs to the rue family Rutaceae. The most commonly cultivated species is Dictamnus albus.
• Morphology: Dictamnus has upright stems that can reach 2-4 feet tall. The leaves are pinnately compound, resembling those of an ash tree, which gives it the common name "Fraxinella." The flowers are borne in terminal racemes and have five petals and long, projecting stamens.

Other Insights for Gardeners

• Flammable Vapor: In hot weather, Dictamnus emits a volatile oil that can be ignited with a match, producing a brief, harmless flame. This phenomenon is most noticeable on still, windless evenings.
• Fragrance: The flowers and foliage of Dictamnus have a pleasant, lemony fragrance that is especially noticeable when the plant is brushed or crushed.
• Phototoxicity: The sap of Dictamnus can cause phytophotodermatitis, a skin reaction that occurs when the sap is exposed to sunlight. It is advisable to wear gloves when handling the plant.
• Deer Resistance: Dictamnus is relatively deer resistant, although deer may occasionally browse on the foliage.
• Pest and Disease Resistance: Dictamnus is generally pest and disease resistant.
• Propagation: Dictamnus can be propagated by seed or by division, although division is difficult due to the plant's deep taproot.

Special Qualities

• Unique Flammability: Dictamnus' ability to emit a flammable vapor makes it a truly unique and intriguing plant.
• Fragrant Flowers and Foliage: The pleasant, lemony fragrance of Dictamnus adds a sensory dimension to the garden.
• Showy Flowers: The tall flower spikes of Dictamnus add vertical interest and a touch of drama to the landscape.
• Low Maintenance: Once established, Dictamnus requires minimal care.

Whether you are looking for a plant with a unique story, a fragrant addition to your garden, or a conversation starter, Dictamnus is an excellent choice. Its intriguing flammability, attractive flowers, and fragrant foliage make it a captivating addition to any landscape.

However, it is important to be aware of its potential for phototoxicity and handle it with care.