Agastache 'Summerlong Lilac'
Agastache 'Summerlong Lilac' is a compact aromatic perennial that produces abundant spikes of soft lilac purple flowers from early summer into fall. Its long blooming habit, fragrant foliage, and upright form make it an excellent choice for sunny borders, pollinator gardens, and containers where continuous color is desired throughout the growing season.
Height & Spread: 18 - 24 in x 18 - 24 in
Bloom Time: Early summer to fall
Light Requirements: Full sun
Soil Preference: Average to well drained soil
Watering Needs: Low to moderate; drought tolerant once established
Deer Resistance: Deer and rabbit resistant
Native Status
Agastache 'Summerlong Lilac' is a cultivated hybrid selected for its extended bloom period, compact habit, and improved garden performance. While not a straight native species, it retains many of the pollinator friendly qualities associated with the genus.
WILDLIFE & INSECTS
Hummingbirds
- The tubular flowers are highly attractive to hummingbirds which visit regularly throughout the long bloom season.
Butterflies
- Draws a variety of butterflies including Swallowtails, Painted Ladies, and skippers with its steady supply of nectar rich blooms.
Bees
- Supports native bees, honeybees, and bumblebees which forage heavily among the densely packed flower spikes.
Spacing & Landscape Use
Spacing Recommendations
- Space 18 - 24 in apart to provide good air circulation and allow each plant to develop a full rounded habit.
Landscape Placement
- Ideal for sunny borders, pollinator gardens, cottage garden plantings, and patio containers where its long flowering season and fragrant foliage can be enjoyed up close.
Companion Plants
- Echinacea purpurea 'PowWow Wild Berry' (Coneflower) - Provides bold summer color and strong pollinator value alongside the soft lilac flower spikes.
- Calamagrostis acutiflora 'Karl Foerster' (Feather Reed Grass) - Adds vertical structure that contrasts beautifully with the compact flowering habit.
- Perovskia atriplicifolia (Russian Sage) - Complements the flower color while thriving in the same sunny well drained conditions.
- Nepeta faassenii 'Walker's Low' (Catmint) - Creates a soft flowing carpet of foliage and bloom beneath the upright flower spikes.
- Coreopsis verticillata 'Moonbeam' (Threadleaf Coreopsis) - Adds a long season of pale yellow flowers that pair well with the lilac tones.