- You Will Get 1000 Seeds Of Dark French Psyllium Plantago Psyllium Herb Flower Flea Seeds. - Description: - Name: French Psyllium. - Other Common Names: Dark Psyllium / Spanish Psyllium / Flea Seed. - Scientific Name: Plantago Psyllium. - Color: White. - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost. - Plant Height: 18 - 24". - Plant Spacing: 12 - 15". - Bloom Time: Summer. - Hardiness Zone: N/A (But Reseeds Itself Easily, So It Acts Like A Perennial In All Zones). - Light Requirements: Sun. - Soil & Water Preferences: Average.