How to Grow Blue Ginger

Plant blue ginger in a site with partial sun exposure and moist, well-draining soil. Blue ginger performs best when it receives four hours of direct sunlight per day and filtered light for the remainder of the day. Plant nursery-grown blue ginger plants at the same depth that they grew in their pots.

Irrigate blue ginger thoroughly after planting and once a week while the plants are actively growing. Provide up to 1 inch of supplemental irrigation each time you water. Allow the surface of the soil to dry visibly before irrigating again to avoid overwatering.

Fertilize blue ginger with a water-soluble 15-15-15 fertilizer once a month during the spring and summer. Withhold fertilization from your blue ginger plants during winter. Resume your regular fertilization schedule in the spring when the plants begin to present new growth. Apply fertilizer products according to label instructions to avoid damaging your plants; excessive fertilizer causes the edges of blue ginger leaves to burn.

Prune blue ginger plants each year after they complete their blooming cycle. Cut the plants back to two-thirds their size with a pair of sharp, sterile garden shears.