Tree Tobacco Seeds (Nicotiana glauca) Fast-growing shrub with yellow tubular flowers; ornamental and attracts pollinators

Minimum: 25+ Seeds

Tree Tobacco — The Fast-Growing Architectural Shrub That Hummingbirds Find Before You Do

Plant Tree Tobacco in a sunny dry spot and come back in a few months. What went in as a small seedling has become something approaching a small tree, grey-green and glaucous, topped with clusters of long yellow tubular flowers pulling in hummingbirds with an intensity that makes the whole shrub hum. Few plants grow this fast, look this architectural, and ask this little. For the right landscape this is a revelation.

Who Grows Tree Tobacco?

Hummingbird gardeners who want a fast-establishing nectar source blooming across multiple seasons. Dry garden and xeriscape designers looking for vertical structure in a plant that thrives without irrigation. Naturalistic landscapers building habitat in California and the American Southwest. Collectors drawn to unusual plants with genuine ornamental presence. And gardeners who want something bold, fast, and different that earns attention without demanding much.

What This Plant Actually Is

Nicotiana glauca is a large, fast-growing shrub or small tree in the tobacco family, native to Bolivia and northwestern Argentina and now naturalized across warm dry climates including the American Southwest, Mexico, the Mediterranean basin, South Africa, and Australia. It reaches 6 to 15 feet with a loose open habit and striking grey-green foliage with a waxy bloom that gives it an almost architectural quality.

Leaves are large, oval, and smooth with a cool steel-grey quality that reads well alongside stone, terracotta, and sun-baked earth. Yellow tubular flowers bloom over an exceptionally long season, often spring through fall in mild climates. Narrow and pendulous, perfectly suited to the long bills of hummingbirds and orioles that work them with focused regularity.

Ornamental and Wildlife Value

Fast establishment, extended bloom, and consistent hummingbird attraction make Tree Tobacco one of the most productive wildlife plants per square foot in a dry garden. In California and the Southwest where Anna's, Costa's, and Black-chinned hummingbirds are year-round residents, a mature specimen provides nectar across seasons few other plants match. The grey-green foliage creates a soft architectural backdrop alongside agaves, grasses, and salvias, filling vertical space where structure is needed before slower plants establish.

Important Note

All parts of Nicotiana glauca contain alkaloids and are toxic if ingested. This is strictly an ornamental and wildlife plant. Keep away from children and animals that may browse.

Growing Tree Tobacco From Seed

• Sowing: Surface sow onto moist, well-draining mix. Seeds need light to germinate. Do not cover.
• Germination Temperature: 65 to 75 degrees Fahrenheit with consistent warmth at the surface.
• Germination Time: 7 to 21 days under good conditions.
• Sunlight: Full sun. Maximum sun produces the best form. Leggy and weak in shade.
• Soil: Well-draining, lean, and low fertility. Sandy, rocky, and disturbed soils are ideal.
• Watering: Regular moisture while young. Extremely drought tolerant once established.
• Spacing: 6 to 10 feet apart. Grows fast and needs room to reach its natural form.
• Pruning: Cut back hard in late winter to control size and encourage vigorous new growth.
• Hardiness: Zones 8 to 11 as a perennial. Fast-growing annual in cooler climates.
• Naturalization: Self-seeds readily in favorable conditions. Worth accounting for in placement.

Before You Close This Page

Fast structure, dramatic foliage, long bloom, and hummingbirds from the first flowering. Tree Tobacco delivers all of it on lean soil and minimal water, growing into a landscape statement in a single season that most shrubs take years to achieve. Open-pollinated seeds with strong germination rates, limited availability. Plant it where you need something bold, fast, and alive with wildlife.