- You will get 250+ Seeds of Lacy Phacelia Phacelia Tanacetifoli Annual Flower Seeds. - Lacy Phacelia Flower Seeds. - 250+ Seeds. - Planting Depth: 1". - Plant Height: 18". - Plant In Full Sun. - Sow Outside In Spring. - Life Cycle: Annual. - Sunlight: Partial Shade, Full Sun. - Watering: Medium.