Hosta Jessica Alba will form a small to medium sized, vase-shaped clump, reaching a height of 30cm to 45cm, with a spread of up to 70cm at maturity. Initially yellow, it transitions to a chartreuse hue during the summer. The leaves are wavy and ruffled at the edges, with a powdery white underside. The yellow leaves are borne on red petioles, providing a striking contrast. Lavender flowers bloom on purple-speckled scapes, reaching up to 75cm from August into September. This variety is slug resistant.