Hosta ‘Thunderbolt’ is a bold, high-impact variety known for its dramatic variegation and strong architectural presence. Its long, lance-shaped leaves feature a bright golden to creamy-yellow center sharply contrasted by wide, deep green margins, creating a striking, electric streaked effect that intensifies visual movement across the plant. The foliage is thick and slightly rippled, forming a vigorous, upright to arching mound with excellent garden substance.