- Name: Japanese Catnip - Other Common Names: Jing Jie - Scientific Name: Schizonepeta Tenuifolia - Color: Purple - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Bloom Time: July - Sept - Hardiness Zone: Annual - Plant Height: 18 - 36" - Plant Spacing: 9" - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average - Quantity: 250 Seeds - Other: Japanese Catnip Is An Asian Herb With Traditional Medicinal Uses. It Is In The Same Family As Other Catnips, But Is Not A "True" Catnip That Attracts Cats. The Plants Do Have A Similar Appearance, With The Japanese Catnip Is Having Multi-Branched Spikes Of Fragrant Flowers.