About
Agastache 'Astello Indigo' is a compact, upright perennial characterized by its bushy growth habit. It features aromatic, dark green leaves that are oval to lance-shaped. Throughout summer and into autumn, it produces slender spikes adorned with tubular, two-lipped flowers in a deep blue hue, which draw a variety of pollinators.
About the genus
Agastache consists of herbaceous perennials featuring straightforward, fragrant foliage and small tubular flowers with two lips, arranged in whorls that create compact spikes during the summer and autumn months. While some species may be somewhat tender, they can also be cultivated as annual bedding plants.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- East-facing, South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H5
Plant details
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 0.5-1 metres
- Spread
- 0.5-1 metres
- Time to full height
- 2-5 years
- Suggested uses
- Wildlife gardens, Patio and container plants, Cottage and informal garden, City and courtyard gardens
- Fragrance
- Foliage
Care notes
- Cultivation
- Will grow well in well-drained soil preferably in full sun. Although a drought tolerant plant, it might need watering in extreme dry weather spells
- Pruning
- Deadhead throughout the season to encourage more flowers
- Propagation
- Propagate by seed or by division in spring
- Pest resistance
- Generally pest-free
- Disease resistance
- May be susceptible to powdery mildews