Grow your own hops with a rhizome root stock.
Cascade hops are a dual purpose American hop with an alpha acid percentage ranging from 4.5-7%. The flavor and aroma are famously citrus-like (particularly ruby red grapefruit) with prominent floral tones. Cascade is the classic finishing hop for pale ales, IPAs, stouts, blonde ales, and wheat ales.
Cascade hops are one of the recomendated hops for beginner growers. The other recommended hops for beginners are Magnum and Nugget.