4.5 Million Baby Blue Flowers Bloom across Japanese Park like A Never-Ending Sea of Blue Lights

The plants don't require fertilizer as they grow but you might want to add a little before you plant the seeds. They require plenty of water during germination, especially during the first six weeks, but cut back when they are in bloom. Avoid cultivating the plants under direct sunlight as a partial shade is the best bet. Pests and disease infestation are not major problems with these plants since they do not live very long.