What is Sweet Golden Rod?

What is sweet goldenrod, and what is it used for?

Sweet goldenrod is a wild North American plant with anise-scented leaves. Dried, the leaves and flower tops make a mild sweet tea. That tea has been sold for two centuries as Blue Mountain Tea.

Folk and Eclectic healers drank it for colds, gas, upset stomach and urinary complaints. It was also used as a simple everyday beverage, like a garden tea.

Here is the honest verdict. No human trials have tested this species for any health use. Long traditional use is well recorded, but it is not proof that the plant works or that it is safe.

One common worry can be set aside. Goldenrod pollen is heavy and sticky, and insects carry it, not the wind. Hay fever in late summer is usually caused by ragweed, which blooms at the same time.

How does Sweet Golden Rod work?

How is it supposed to work, and is that proven?

No one has shown in people how sweet goldenrod acts in the body. What follows comes from lab dishes and animals, not from patients.

Goldenrod species contain saponins and flavonoids. In animal studies, extracts of related goldenrods increase urine flow. This is the basis for the old use as a "flushing" tea.

In test tubes, goldenrod extracts calm some markers of inflammation. In lab tests they also slow the growth of certain bacteria and fungi. Whether any of that happens in a person drinking tea is unknown.

The anise smell comes from a volatile oil. Oils of this kind can relax gut muscle in lab work, which may explain the old use for gas and cramps. That link remains a guess, not a finding.

Tradition also called the tea diaphoretic (sweat-promoting) when drunk hot. A hot drink of any kind can make you feel flushed and sweaty. That effect is not specific to this plant.

What forms does Sweet Golden Rod come in?

What forms does it come in?

Loose dried leaf is the usual form. It is brewed as a hot tea, alone or blended with mint or other herbs.

Tea bags are sold under the name Blue Mountain Tea. Flowering tops are sometimes included with the leaf.

Tinctures (alcohol extracts) appear in some herb shops. These are far stronger by volume than tea.

A distilled essential oil is also sold. It is a concentrated source of estragole and is meant for scent work, not for swallowing.

Dried whole plant is sometimes sold for dye or craft use. That grade is not meant for drinking.

Where it comes from:

Where does it come from?

Sweet goldenrod grows wild in the eastern United States, from New England south to the Gulf. Native peoples in that range used goldenrods for fevers, colds and wounds.

Colonists took up the sweet-scented species as a drink. After the Boston Tea Party it was promoted as a homegrown substitute for imported tea, and it was exported to China as Blue Mountain Tea.

Eclectic and folk writers of the 1800s listed it for gas, colic, nausea and sluggish urine. It was also given as a hot bedtime drink in the early stage of a cold.

In Europe, a different plant, European goldenrod, became the medical standard. That species, not this one, is the one named in modern European herbal monographs.

Sweet goldenrod stayed a regional home remedy and a pleasant beverage. It never entered mainstream medicine on either side of the Atlantic.

What does Sweet Golden Rod help with?

• Colds and mild fevers: Folk healers served it hot at the first sign of a cold. It was thought to bring on sweating and ease a tight chest. No trial has tested it for colds. Warm fluids do soothe a sore throat and loosen mucus, but that is true of any hot drink. It will not shorten a cold, and nothing suggests it fights the virus in a person.
• Gas, bloating and stomach upset: This was the most common Eclectic use. The anise-smelling oil was thought to settle a gassy, cramping belly. Aromatic oils of this type relax gut muscle in lab work. No human study has tested sweet goldenrod tea for this. If symptoms are new, severe or come with weight loss or blood, see a doctor rather than treating at home.
• Urinary "flushing" in minor urinary irritation: Goldenrods have a long name as urine-promoting plants. In Europe, European goldenrod is used this way, and animal studies back the urine-flow effect. That evidence is for a different species, in small and often poor studies. Sweet goldenrod itself has not been tested. A urinary tract infection needs medical care. Tea is not a treatment for one, and delay can let an infection reach the kidneys.
• Mild menstrual cramps: Some folk sources list it for cramping pain. The reasoning was the same as for gut cramps. There is no human evidence here at all. Any relief may come from the warm drink and the rest that goes with it.
• Use as a caffeine-free beverage: This is the use the plant best supports. It makes a pleasant, lightly sweet, caffeine-free tea. As a drink it is a food, not a treatment. Drinking it for pleasure carries the same cautions listed in the safety section.

Which foods are rich in Sweet Golden Rod?

Sweet goldenrod is not a nutrient found in foods. It is a herbal tea plant, sold dried for brewing. The anise-like flavour is sometimes used in home-made syrups and jellies.

What are the side effects of Sweet Golden Rod?

• Allergic reaction in people sensitive to the daisy family (rash, itching, swelling)
• More frequent urination
• Nausea or stomach upset, mostly from strong brews
• Mouth or throat irritation from concentrated extracts
• Headache or dizziness, reported rarely

Good to know:

How common and how serious are side effects?

As a weak tea, problems are uncommon and usually mild. Most reports involve allergy or extra trips to the bathroom.

The real concern is concentration, not the cup. The essential oil is a strong source of estragole, which caused liver tumours in animals given large doses.

Allergy is the one that can turn serious fast. Stop at once if your lips, tongue or throat swell, or if you wheeze.

How much Sweet Golden Rod should you take?

• Recommended daily: How much do products contain? Tea labels usually describe about one to two teaspoons of dried leaf steeped in a cup of hot water. That is a label-style amount, not advice for you. Tinctures carry their own label amounts, which vary by maker. No official or tested dose exists for any use. The essential oil has no safe swallowing amount and should not be taken by mouth at all.
• Best time of day: Does timing matter? Not much. Tradition favoured a hot cup in the evening during a cold, to encourage sweating. One practical point: it may increase urine flow. A late cup could send you to the bathroom at night.
• With or without food: With or without food? Either is fine. For gas or fullness, tradition served it after meals. If tea on an empty stomach makes you feel queasy, have it with food.
• Time to effect: How fast would anything happen? The warmth and taste are immediate. Any settling of a gassy stomach would likely be felt within an hour. It may also do nothing. No trial has measured an effect in people, so there is no honest timeline to give.
• How long to take it: How long is it usually taken? Traditional use was short, a few days during a cold or a bout of indigestion. It was not taken for months on end as a treatment. Because of the estragole content, long daily use of strong brews or extracts is not a good idea. If you want it as an everyday beverage, raise that with your doctor or pharmacist first.