How to Fertilize tree lupin?
Low-nitrogen shrub feed once yearly in early spring months

tree lupin · Lupinus arboreus
Also known as: yellow bush lupine
Grow in well-drained, sandy soil; best in full sun but can be grown in partial shade. Ideal for coastal situations in southern or mild counties where it can be grown in exposed situations but is likely to need shelter in colder areas with prolonged heavy frost
Low-nitrogen shrub feed once yearly in early spring months