how to care for hyacinth plants indoors hyacinths are known for their strong fragrance and intense colored flowers hyacinth plants typically flower in the spring producing blooms and shades of pink purple white yellow or light blue growing hyacinth plants indoors is surprisingly easy you can either purchase a potted hyacinth plant or grow your own from bulbs to enjoy in your house with the right temperature potting soil and planter your hyacinth will bloom beautifully indoors things you will need tall planter sandy soil hyacinth plant or bulbs drip tray step 1 select a potted hyacinth as dark green glossy healthy-looking leaves purchase a hyacinth that stands erect and strong one that has tied buds step 2 get a deep planter for your hyacinth if you re planting a hyacinth from a bell plant the bulb at least eight inches deep plant the bulbs flat side down and space them two to three inches apart step 3 Potter hyacinth and sandy soil that provides good drainage you don t need to add fertilizer to your hyacinth plant step 4 place your potted hyacinth in a cool location away from heating vents and direct sunlight the hyacinth enjoys bread in direct sunlight exposure to heat will shorten the plant cast life expectancy and hasten its blooming step 5 water the hyacinth every two to three days do not allow the soil to dry out completely you