Sassafras

A fun, aromatic native tree with three shapes of 'mitten' leaves on one plant and some of the most brilliant multicolored fall color of any tree - historically the source of root beer and file powder, though its root's safrole means it's now grown for beauty and wildlife, not the tonic.

Full sun to part shade and well-drained, slightly acidic soil in zones 4-9; easy, fast, and adaptable - plant it small (deep taproot), decide between a single tree or a suckering thicket, and enjoy a tough, low-care native.

Sassafras is easy and adaptable. It grows in full sun to part shade (more sun means the best fall color and fruiting) and in most well-drained, slightly acidic soils - it's a pioneer that readily colonizes old fields, fencerows, and woodland edges, tolerating poor, dry, and sandy ground once established. It's hardy across zones 4-9 and grows moderately fast. Because it forms a deep taproot and resents transplanting, plant it small (or start it from seed or a sucker in place) and disturb the roots as little as possible.

The main growing decision is form: sassafras suckers freely from the roots and naturally spreads into colonies and thickets. Decide early whether you want a single-trunk small tree (remove the suckers as they appear) or a naturalized thicket for wildlife and butterflies (let the suckers run) - and site it with room for the latter if you choose it. Sassafras is usually dioecious (separate male and female trees), so if you want the wildlife-valuable blue fruits, you'll need a female with a male nearby. Water it while young, then enjoy one of the toughest, most rewarding, and most simply fun native trees you can grow.

Very low-care - water young trees, manage suckers for your chosen form, prune lightly in dormancy, and welcome the swallowtail caterpillars; the tree is tough, adaptable, and largely pest-free.

Sassafras is a low-maintenance native. Water it through its first year or two and in serious drought after that (established trees are quite drought-tolerant), mulch the root zone, and it largely looks after itself - it's naturally free of serious pests and diseases, needing no spraying. Prune lightly in the dormant season to remove dead or crossing wood and shape the tree; it needs little.

The main ongoing task is managing the suckers: sassafras spreads by root suckers into colonies, so remove them regularly if you want a single-trunk tree, or let them run for a wildlife thicket. Welcome the caterpillars: sassafras is a host plant for the spicebush swallowtail and tiger swallowtail butterflies, so some chewed leaves mean you're raising butterflies - never spray a host tree. On female trees, the blue fruits feed birds (and self-sow seedlings around). The one thing not to do is dig and brew the roots for the old-fashioned root beer or tonic - the root's safrole is a banned food additive and possible carcinogen. Grown for its leaves, fall color, aroma, and wildlife rather than its root, sassafras is a tough, easy, delightful tree that asks very little.

A tree of two flavorings with an important caveat - its root/bark once made root beer and folk tonics but contains banned, possibly carcinogenic safrole, while its dried leaves make safrole-free 'file' powder still used in Cajun gumbo.

Sassafras is bound up with two famous flavorings, one now discouraged and one still used. Its aromatic root and root bark were the original flavoring of old-fashioned root beer and 'sassafras tea,' and a staple of folk tonics for centuries - but they are rich in safrole, which the FDA banned as a food additive in 1960 after it was found to be a possible carcinogen and liver toxin in concentrated amounts. So the traditional root-beer and sassafras-tea uses are no longer considered safe, commercial root beer now uses safrole-free flavorings, and this catalog does not offer the root as a harvest. Enjoy the sweet root-beer scent of a scratched twig - just don't brew and drink the root.

The tree's leaves, however, tell a happier story. Dried and ground, young sassafras leaves make 'file powder' (pronounced FEE-lay), the traditional thickener and seasoning of Cajun and Creole gumbo, giving it a distinctive earthy, savory note. File powder is made from the leaves, which contain essentially no safrole, so it remains a legal, traditional seasoning still sold and used today. So of sassafras's culinary legacy, the leaf-based file powder lives on safely, while the safrole-rich root of the old root-beer tradition is best appreciated only for its wonderful smell.

Easiest from root suckers or a nursery transplant; grows from cold-stratified seed too, but seedlings are slow and the deep taproot makes transplanting fussy, so most people use suckers or a young tree.

Sassafras is easiest to propagate from its own root suckers: dig a rooted sucker from the edge of an existing colony in dormancy and replant it - it's a quick way to get a new plant identical to the parent, and it's exactly how sassafras spreads in the wild. A young nursery transplant (planted small, since the taproot resents disturbance) is the simplest way to get a single specimen tree.

From seed, sassafras is doable but slower: clean the seed from the ripe blue fruit (removing the pulp, which inhibits germination), cold-moist stratify it over winter (or fall-sow outdoors), and it germinates in spring, growing a deep taproot that makes later transplanting difficult - so sow where the tree will stay or in a deep pot moved young. Because sassafras is dioecious, seedlings will be male or female (you won't know which for years), and only females fruit. Since it's so easy from suckers and self-sows readily from bird-dropped seed, most gardeners simply dig a sucker, transplant a young tree, or protect a volunteer - the deep taproot is the only real challenge, which is why planting small and undisturbed is the rule.

Not a food plant offered here (the safrole-rich root is discouraged) - but a valuable wildlife and butterfly tree, hosting swallowtail caterpillars and feeding birds and mammals with its blue fruits.

Sassafras isn't offered as a food plant - its most famous 'edible' part, the root, contains banned safrole and is discouraged, and its leaf-based file powder is a seasoning rather than nutrition. Its real value is ecological, and it's considerable. Sassafras is an important butterfly host plant: it's a larval food for the spicebush swallowtail and the tiger swallowtail, among other native insects, so a sassafras (or a sassafras thicket) is a butterfly nursery, and the caterpillars it raises also feed nesting birds.

Its fruit is a valuable wildlife food: the small dark-blue drupes on their bright red stalks, borne on female trees in late summer, are high in fat and eagerly eaten by many birds (thrushes, catbirds, thrashers, woodpeckers, and migrating songbirds fueling up) and by small mammals, which also spread the seed. Its early spring flowers feed bees, and its thickets provide cover for wildlife. As a fast native pioneer that colonizes old fields and edges, sassafras helps rebuild woodland and supports the food web richly. So while it feeds no gardener, sassafras feeds butterflies, bees, and birds - a genuinely valuable native for wildlife, grown for that and its beauty rather than for the table.

Sassafras was once a famous medicine: its aromatic root and bark were shipped to Europe as a 17th-century 'miracle cure' and brewed for centuries as a tonic for fevers, rheumatism, and the skin. But the root and bark contain safrole, banned by the FDA in 1960 as a possible carcinogen, so those uses are no longer safe - do not brew the root. Educational, not medical advice.

Few plants have a bigger medicinal history than sassafras. When Europeans reached North America, Indigenous peoples were already using the aromatic root and bark as medicine, and colonists became convinced it was a miracle cure for everything from fevers and 'the pox' to general ill health. Demand was so great that in the early 1600s sassafras root became one of the first major exports from the New World to Europe. For the next three centuries it stayed a folk staple: sassafras tea and root tonics were taken as a spring tonic and 'blood purifier' and for fevers (the tree's old name 'ague tree' records its use against malarial agues), rheumatism, and skin complaints, and it flavored the original root beer.

That long tradition ended for good reason. The root and bark are rich in safrole, the compound behind the root-beer scent, which the FDA banned as a food additive in 1960 after it was shown to be a possible carcinogen and liver toxin in concentrated form. So the classic root-and-bark remedies — sassafras tea and tonics — are no longer considered safe to consume, and commercial root beer switched to safrole-free flavorings. Notably, the dried leaves used for Cajun file powder contain essentially no safrole and remain a legal seasoning, but that is a culinary, not medicinal, use. This is a historical account, not a recommendation: enjoy the root-beer scent of a scratched twig, but do not brew and drink the root. Educational information only, not medical advice.

One of the first American exports - sassafras root was a hugely valuable 'miracle cure' shipped to Europe in the 1600s, and it flavored root beer and tonics for centuries until safrole was banned in 1960.

Few American plants have a wilder history than sassafras. When Europeans reached North America, Indigenous peoples were already using sassafras root and leaves as food seasoning and folk medicine, and colonists became convinced the aromatic root was a miracle cure - for everything from fevers and 'the pox' to general ill health. Demand exploded, and in the early 1600s sassafras root became one of the first major exports from the New World to Europe, so valuable that it drove early exploration and trade along the Atlantic coast - one of the original cash crops of English America.

For the next three centuries sassafras remained a folk staple: the root and bark flavored root beer, 'sassafras tea,' and spring tonics, and the tree's other names ('ague tree,' after malaria/fevers it was thought to treat) record its medicinal reputation. That long tradition ended in 1960, when the FDA banned safrole - the root's key aromatic compound - as a food additive after it was shown to be a possible carcinogen, sending commercial root beer to safrole-free substitutes and ending the home-brewed root tonic. Today sassafras is valued instead for its beauty, its wildlife role, and its surviving safrole-free legacy: the leaf-based file powder of Louisiana gumbo. From miracle cure to banned additive to beloved native shade tree, sassafras has had a remarkable American journey.

Mostly easy - the things to know are that suckering spreads it (manage or embrace it), the root shouldn't be brewed (safrole), and its variable leaves and multicolor fall are features; pests are few.

It's spreading by suckers into a thicket: normal - sassafras suckers freely from the roots; remove suckers for a single-trunk tree, or let them run for a wildlife thicket, and site it with room in mind. Can I make root beer or tea from the root? It's not recommended - the root and bark contain safrole, a banned food additive and possible carcinogen; enjoy the root-beer scent of a scratched twig, but don't brew and drink the root. (Leaf-based file powder is safrole-free and fine.) The leaves are all different shapes: that's the famous feature - sassafras bears oval, mitten, and three-lobed leaves, often on one branch; it's not a problem, it's a delight. No berries on my tree: sassafras is dioecious - only female trees fruit, and they need a male nearby; a lone or male tree won't bear the blue fruits. Chewed leaves and green-and-black caterpillars: welcome them - sassafras hosts spicebush and tiger swallowtail butterflies; never spray. Leaves colored red and purple very early in fall: a feature, not stress - sassafras is one of the best and earliest for fall color. Hard to transplant / slow from seed: the deep taproot resents moving - plant small, or use a sucker.

Broadly hardy across the eastern U.S. (zones 4-9), a tough, adaptable pioneer of old fields and edges; heat-, cold-, and drought-tolerant once established, with few real climate limits beyond wet or heavily shaded sites.

Sassafras is native and hardy across the eastern United States, zones 4-9, and it's a tough, adaptable pioneer. Zones 6-8 (its heartland): it thrives across the East and Southeast, colonizing old fields, fencerows, and woodland edges, and delivering its best fall color and fruiting in these conditions. Zones 8-9 (the South): excellent, handling heat and humidity well on well-drained sites. Zones 4-5 (the cold north): hardy near its northern limit, still a fine fall-color tree. It's notably drought- and heat-tolerant once established, and adaptable to poor, dry, sandy, and disturbed soils - which is why it's such a successful pioneer of abandoned land. Its main limits are site rather than climate: it prefers well-drained, slightly acidic ground and doesn't like constantly wet soil or deep shade (it colors and fruits best with good sun). Give sassafras a sunny-to-part-shaded, well-drained spot with room for its suckering habit, and it's one of the most resilient, adaptable, and rewarding native trees across the entire eastern half of the country - a splash of autumn fire and a butterfly nursery almost anywhere it can root.