Blue Schlumbergera Flower Planting Seed Perfect for adding vibrant, captivating beauty to your garden arrangements. Plant these perennial seeds in spring for best results. They thrive in well-drained soil, partial shade, and require moderate watering. Ensure the soil stays slightly moist, and maintain temperatures above 5 °F (1 °C). Schlumbergera prefers a mild climate, making it ideal for indoor or shaded outdoor settings.