Sweet Goldenrod

What is Sweet Goldenrod?

What is sweet goldenrod?

Sweet goldenrod (Solidago odora) is a tall, yellow-flowered plant from eastern North America. Crush a leaf and it smells of anise, much like liquorice. Dried leaves were brewed into a drink known as Blue Mountain Tea.

Today it is sold mostly as a loose dried herb for tea. Folk use centred on wind and gas, mild stomach upset, colds and sluggish urine flow. A few makers also sell a tincture, which is an alcohol extract.

Here is the honest verdict. There are no human trials of sweet goldenrod for any health claim. Its standing rests on long use alone, and tradition is not proof of effect or of safety.

One point matters before you try it. The leaf oil is rich in estragole, a natural plant compound that is also found in tarragon. High doses caused liver tumours in rodents, so the strong oil is not something to swallow.

How does Sweet Goldenrod work?

How is it meant to work?

No one has shown what sweet goldenrod does inside the human body. What follows is a proposal, not a finding.

Goldenrods as a group contain flavonoids and saponins, two families of plant compounds. In animal studies of related goldenrod species, these appear to raise urine output. They also seem to damp down some markers of swelling in test tubes.

Whether any of that happens in a person drinking a cup of tea is not established. The amounts in a mug of weak tea are small.

The anise-scented oil may explain the traditional use for gas. In laboratory work, similar aromatic oils relax gut muscle. That is a test-tube observation, not a proven effect in people.

A warm drink of any kind can also soothe a sore throat and loosen mucus. Part of what people feel from this tea is likely the warm fluid itself.

What forms does Sweet Goldenrod come in?

What forms is it sold in?

Most of what you will find is the plain dried herb. You may see it sold in these forms:

- Loose dried leaf and flower for tea, the traditional and most common form - Tea bags, sometimes blended with mint or other herbs - Tincture, an alcohol extract taken in drops - Essential oil, sold for scent, not a drinking product - A flavouring in craft sodas, honey or beer, now and then

Capsules are uncommon. Sweet goldenrod is a niche herb, and most sellers are small.

Wild-picked stock is often sold at markets. Goldenrods can be confused with other yellow field plants, and some look-alikes are not safe.

Buy from a seller who names the species on the label.

Where it comes from:

Where does its reputation come from?

Sweet goldenrod was a well-known household tea in the eastern United States. Cherokee and other Native American peoples used the plant long before colonists did. Colonial households took it up as a local drink.

The name Blue Mountain Tea comes from the Blue Ridge and nearby hills. After colonists boycotted imported tea in the 1770s, this herb became a stand-in. Some was even shipped to China as a curiosity.

Nineteenth-century Eclectic doctors listed it in their dispensatories. They recorded it as a warming drink for wind and colic, for nausea, and to bring on sweating in fevers. Some also used it for slow or painful urination.

These are historical records of what practitioners did. They are not test results, and they do not tell you the herb is safe or that it worked.

What does Sweet Goldenrod help with?

• Gas, bloating and wind: This was the most common folk use. Eclectic writers listed it for flatulent colic, meaning painful trapped wind. There are no human trials. Aromatic oils of this type relax gut muscle in test-tube work, which may explain the reputation. A warm drink alone can ease a tight belly. That may be most of the effect.
• Mild nausea and upset stomach: Tradition used the tea to settle a queasy stomach, much as mint or ginger were used. No study has tested sweet goldenrod for nausea in people. Nothing here supports it for vomiting that keeps coming back. See a doctor for nausea that lasts more than a couple of days.
• Colds, chills and sore throat: It was given hot to encourage sweating during fevers. That idea was standard practice in its day, not a tested one. There is no trial evidence that it shortens a cold or lowers fever. Warm fluid does soothe a sore throat and thin mucus. It does not replace care for a fever that is high or lasting.
• Flushing the urinary tract: Goldenrods have a long European and American reputation as a diuretic, meaning something that makes you pass more urine. Most of the research is on a different species, European goldenrod. Small studies there used mixed herbal products, not sweet goldenrod on its own. It is not a treatment for a urinary infection. Those need assessment, and often antibiotics.
• Menstrual cramps: Some folk sources suggested the warm tea for period pain. This is a minor, poorly documented use. There is no human evidence for it. Any relief may come from heat and fluid. Severe or worsening period pain is worth having checked.
• Use as a caffeine-free flavoured tea: This is the one use that needs no evidence claim. People drink it because it tastes of anise and has no caffeine. As a drink, it is a drink. Judge it on taste. Even so, the estragole point means it is better as an occasional cup than a daily habit.

Which foods are rich in Sweet Goldenrod?

Sweet goldenrod is not a nutrient, so no food is rich in it. The leaves are used as a flavoured tea, and sometimes as a scent in honey, soda or beer.

What are the side effects of Sweet Goldenrod?

• Allergic reaction in people sensitive to ragweed, daisies or chrysanthemums
• Skin rash or itching after handling the plant
• Passing more urine than usual
• Mild stomach upset or nausea
• Rarely, swelling of the lips, face or throat, and trouble breathing

Good to know:

How common and how serious?

For most people, the tea is well tolerated. Reports of harm are rare.

The real concern is allergy. Goldenrod is in the daisy family, and people who react to ragweed may react to it.

The other concern is the estragole in the leaf oil. High doses harmed rodent livers in laboratory work. The risk from occasional tea is unknown, which is why daily long-term drinking is not advised.

Swelling of the face or throat, or trouble breathing, is an emergency. Stop and get help at once.

How much Sweet Goldenrod should you take?

• Recommended daily: What do labels usually say? This is what sellers tend to print, not advice for you. Typical tea labels suggest about 1 to 2 grams of dried leaf per cup. That is roughly a heaped teaspoon. Many list up to two or three cups a day. Tincture labels vary widely, often a few millilitres a day. There is no agreed dose, because no dosing study exists. The essential oil is not for swallowing at any amount. Keep it away from children. If you take any regular medicine, ask your doctor or pharmacist before starting.
• Best time of day: Does timing matter? Not much. No study has compared times of day. People often drink it after meals, matching the traditional use for wind. It has no caffeine, so an evening cup will not keep you awake. It may make you pass more urine. A cup right before bed could mean a trip to the toilet.
• With or without food: With food or without? Either is fine. The tea is gentle on most stomachs. Traditional use was after eating, for wind and fullness. On an empty stomach, tannins can feel slightly harsh for some people. Drink it with food if plain tea upsets you.
• Time to effect: How fast would you notice anything? Any settling effect from a warm drink is felt within minutes to an hour. That is not the same as a proven herbal action. There is no measured time to effect, because there is no measured effect. It may well do nothing for your symptom. If several days of use change nothing, it is reasonable to stop.
• How long to take it: How long do people use it? Traditionally it was used for a few days at a time, during a cold or a bout of indigestion. There is no safety data on long-term daily use. Because of the estragole content, daily use for months is not a good idea. If a symptom lasts beyond a week or two, stop and get it looked at.