How To Take Care Of A Petunia Flower. Place your containers where they will receive full sun six hours per day is good but eight is preferable for the fullest possible blooms. This usually takes place about seven to ten days after you plant the petunia.
Growing in pots require a slightly different approach than growing these plants in the ground. Your plants will need more frequent waterings and fertilizer applications. When the seedlings begin to sprout you will want to remove the plastic film.
Learn how to care for Petunias dead head properly.
Weekly waterings should be included in the care of petunias. Occasionally you will need to prune. A thorough watering once a week should be sufficient unless there are prolonged periods of drought in your area. Spreading ground cover petunias are pickiest about water.