Fertilising a Panicum virgatum 'Shenandoah'
To ensure the vibrant foliage and robust growth of Panicum virgatum 'Shenandoah', fertilization should be moderate. This species benefits from a balanced, slow-release fertilizer applied in early spring as new growth appears. A second application can be made in mid-summer to support the plant's needs during the flowering period, but excessive fertilization should be avoided to prevent overly lush growth that may compromise the plant's structural integrity.
As a hardy grass, Panicum virgatum 'Shenandoah' is well-adapted to a range of soil types but thrives best when nutrients are steadily available. By adhering to this fertilization schedule, gardeners will encourage the switch grass to display its characteristic rich, burgundy-red tips in summer and transform into striking shades of yellow and brown as the seasons progress into autumn and winter.