Phlomis tuberosa

Phlomis tuberosa: Violet Candelabra

Architectural and unusual, Phlomis tuberosa stands tall with upright stems bearing whorled tiers of soft violet-purple flowers that resemble a series of stacked candelabras. The blooms rise above coarse green foliage in early to midsummer and are beloved by bees. As the flowers fade, sculptural seedheads take over, offering months of garden interest. Hardy, drought tolerant, and resilient, this plant thrives in challenging sites and brings height, texture, and wild charm to any border or naturalistic planting.

Plant Characteristics:

• Height: 100–120 cm
• Spread: 60–75 cm
• Flower Colour: Violet-purple
• Flowering Period: June to August
• Foliage: Large, coarse green leaves
• Sunlight Requirements: Full sun to part shade
• Soil Requirements: Average, well-drained; drought tolerant once established

Uses and Benefits: A natural fit for prairie plantings, dry meadows, and modern perennial gardens where bold structure and long-season appeal are key. Provides nectar for pollinators and architectural value well beyond the flowering period. Useful for weaving through other perennials or creating vertical rhythm in mixed borders.

Companion Plants: Combine with Salvia 'Perfect Profusion', Achillea 'Sassy Summer Sangria', and Panicum 'Northwind' for a bold and textural planting that thrives in sun and draws in pollinators all summer long.

Care Instructions: Easy to grow in sun and well-drained soil. Water regularly during establishment, then sparingly. Deadheading isn’t necessary unless tidiness is preferred—seedheads offer ornamental winter interest. Cut back in early spring to promote fresh growth.

History: Native to southeastern Europe and western Asia, Phlomis tuberosa has gained favour in naturalistic planting designs for its sculptural form and low-maintenance habit. The species name refers to its underground tuberous roots, which help it survive dry spells.

Final Thoughts: For gardeners seeking structure, resilience, and soft purple tones, Phlomis tuberosa offers an enduring presence and pollinator value with a sculptural silhouette that holds through the seasons.