Gum, Sweet (Liquidambar styraciflua) Type: Deciduous Zone: 6 Height and Width: 70' tall, 50' wide Shade Density: Medium to dense Fall Foliage: Yellow;red;gold Soil Preference: Tolerant, but best in moist, well-drained Comments Fast-growing in moist areas. Disease-resistant and pest-free. Bark is attractive silver gray. Prickly, round seed clusters form on mature trees in fall and cling through part of winter. Plant in wet areas.