If you want months of bold color and nonstop pollinator activity, Agastache × 'Morello' (Giant Hyssop 'Morello') is a standout. This hummingbird mint forms a tidy, upright clump topped with dense burgundy-rose flower spikes that keep coming from spring into fall. The foliage is pleasantly aromatic when brushed, and the plant brings a lively mix of hummingbirds and beneficial insects into your garden.

Place it where it can get full sun for the strongest growth and heaviest flowering. Good drainage is essential, especially through winter. Choose a well-drained bed, slope, or container, and avoid spots that stay soggy after rain. Once established, it handles drier conditions well, making it a great fit for water-wise borders and warm, sunny spaces.

At maturity, expect plants around 25-34 inches tall with a spread near 20-24 inches. Give each plant room for air flow, and pair it with other sun-loving perennials that like similar lean, well-drained soil. It also performs beautifully as a specimen in a mixed border where the deep flower color can contrast with lighter blooms and grasses.

For best performance, water regularly during establishment, then shift to occasional deep watering during extended dry spells. Deadhead or lightly trim spent spikes to keep it looking fresh and encourage continued flowering. Leave the clump to go dormant for winter, then cut back in late winter or early spring as new growth begins.

Specifications

• Cold hardiness zone: 5-10 (-20 degrees F) - Contact your local extension to confirm hardiness if you are in a fringe zone (we cannot guarantee hardiness in fringe zones)
• Light: Full sun
• Mature height: 25-34"
• Spread: 20-24"
• Tolerant of: Drought
• Attracts: Hummingbirds
• Long bloom time: Yes

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