Hosta Broadband forms a substantial mound, reaching a height of 55cm-65cm, and can spread up to 125cm at maturity. It features large, heart-shaped leaves that are dark green with a wide band of yellow that extends from the margins toward the centre of the leaf. During spring, Hosta Broadband is particularly striking due to its bright yellow margin encircling the dark green centre. This margin fades to a creamy white in the summer months. The leaf margins exhibit a gentle waviness, giving them an appearance of confident poise. Near-white flowers bloom on 75cm scapes from July through August. This plant is resistant to slugs.