Family Asparagaceae
Originating from Mexico.
- Evergreen globe of slender, grass-like green leaves, forming a swaying mound.
- An epic 3–5m tall inflorescence is produced after many years, bearing hundreds of flowers.
- Thrives in free-draining soil, full sun, ideal for Mediterranean and coastal UK gardens.
Forms a swaying, sea urchin-like globe of slender evergreen, whip-like leaves, its 1.5m high and wide rosette of fibre optic-like deep green foliage is a show-stopper. Dasylirion longissimum adds a unique and dramatic architectural texture that is perfect for contemporary gardens. Its rounded crown adds a spectacular focal point to Mediterranean or coastal gardens, even before its towering 3–5m flower spike emerges.
Its compact, low-maintenance form suits sun trap courtyards, Norfolk’s exposed coastal courtyards or Suffolk’s sunny gravel gardens. Perfect as a specimen, Dasylirion longissimum brings year-round texture to sun-baked, dry gardens. Hardy in southern and coastal UK climates, snow turning to ice in its crown is its only downfall.
Care Tips for Dasylirion longissimum Contemporary Specimen Plants
- Soil and Sun: Requires free-draining, sandy soil; full sun for optimal growth and form.
- Planting: Plant in spring; ensure excellent drainage. Protect in northern UK winters, gathering its leaves into a cone shape to prevent snow settling in its crown.
- Watering: Water sparingly once established; highly drought-tolerant, avoid waterlogging.
- Pruning: Remove occasional unsightly leaves in spring; no pruning needed to maintain shape.
Dasylirion longissimum creates a unique effect in southern and coastal UK gardens. Its eye-catching shape is perfect for planting in house-adjacent areas, seen daily through bi folding doors. Modern open plan living with seamless indoor/outdoor spaces, typical of Norwich’s modern extensions are ideal.
Suffolk’s garden rooms and conservatories can look out on its all-season elegant form. In Mediterranean borders, its grass-like mound creates a striking, easy to grow focal point.
Planting Suggestions for Dasylirion longissimum
Indulge in a filamentous, swaying vista of blade-like foliage. Plant the Mexican Grass Tree with Cortaderias pumila and fulvida, Festuca ‘Elijah Blue’ and Helictotrichon sempervirens for a diaphanous escape. Swaying and rustling in the slightest breeze, creating fluttering dappled light shade over them, Eucalyptus species complete the picture. Add Eucalyptus perriniana, nicholii, gregsoniana and coccifera to the Bear Grass planting scheme for an otherworldly effect.
Use the Toothless Sotol as a stunning anchor amidst Mediterranean floral flourishes. Set it amongst Kniphofias rooperi and ‘Nobilis’, ‘Alcazar’, and ‘Wrexham Buttercup’ for similarly sword-like foliage and spikes of flower. Add the spectacular, rounded Echium candicans for contrast, and Echium wildpretii and ‘Snow Tower’ for their upright impact.
For further reading on Dasylirion, visit: https://treesandshrubsonline.org/articles/dasylirion/
