10 Adenium Obesum (Desert Rose) Pink Hybrid Seeds To plant: Plant 1/4-12/” deep in good soilless well-draining potting mix. Make sure the soil is moist, not soggy. After you plant the seeds, cover with plastic (for instance, put a ziploc bag over a nursery pot) to ensure the seeds stay warm and humid. Remember to monitor the soil to make sure it doesn’t dry out. Keep the seeds warm, around 75-85F (a heat mat is best). Keep them in a bright spot, a windowsill spot that doesn’t receive direct sunlight or a grow light is best. The seeds should germinate in 3-7 days. Once sprouts pop up, you can remove the plastic cover and ensure that the growing medium remains moist. You can start to lightly fertilize the seedlings with liquid fertilizer on a weekly basis. For the 2021 growing season.