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'Six Hills Giant', sometimes commonly called catmint, is a vigorous sterile hybrid which typically grows in a clump to 3' tall and slightly wider.
- Type: Perennial
- Zone: 4 to 7
- Height: 2.00 to 3.00 feet
- Spread: 2.00 to 4.00 feet
- Bloom Time: June to September
- Bloom Description: Blue
- Sun: Full sun to part shade
- Water: Dry to medium
- Maintenance: Low
- Flower: Showy
- Leaf: Fragrant
- Tolerate: Rabbit, Deer, Drought, Dry Soil, Shallow-Rocky Soil, Air Pollution