Solidago
Is this Ragweed?
NO ! - NOT RAGWEED !
The genus Solidago is what is commonly know as Goldenrod. Ragweed is in the genus Ambrosia, and while both bloom around the same time, they are distinct genera.
Despite their similar appearance, Solidago is not a major allergen – but Ambrosia is !
So, its good news – plant as many as you like.
Introduction
How to tell the difference – look at the flowers. Solidago has bright yellow flowers while ragweed flowers are green and quite small – inconspicuous.
If it’s not yet in bloom – then look at the leaves. Solidago leaves are simple and placed alternately on the stem. Ambrosia has feathery green leaves that are hairy and smell like mint when crushed.
Pollen
Goldenrod flowers contain nectar to attract pollinating insects. It has very large heavy sticky pollen grains – and they tend to attach to the insect bodies. It is an important nectar source for pollinators.
Ragweed flowers do not contain nectar, and the plants are dependent on the wind to transfer the small, lightweight pollen which can blow for miles. One single ragweed plant can produce over a billion pollen grain.
Edible
Yes, goldenrod is generally considered edible.
Both the flowers and leaves of the goldenrod plant are edible and can be used in various culinary application either raw in salads, cooked as greens or dried then steeped as a tea.
Toxicity
No ! Solidago is generally considered non-toxic to humans and most animals.
Medicinal use
Goldenrod contains chemicals that might increase urine flow and reduce swelling. It might also kill bacteria and fungi.
People use goldenrod for enlarged prostate, kidney stones, urinary tract infections (UTIs), tooth plaque, and many other conditions, but there is no good scientific evidence to support these uses.
Species and cultivars
Solidago has about 100 to 120 species in its genus. Most are herbaceous perennial species found in open areas such as meadows, prairies, and savannas.
Most cultivars tend to look similar. But this beauty is simply distinctive.
Solidago bicolor
Also known as silverrod or white goldenrod, this species is a drought-tolerant goldenrod with a strong upright habit, and white flowers.
Fill your garden with Solidago !
Tall, Short, Yellow, or White - or one of each !
Call us - we know where to get them!
PLANT SPECIALISTS
GREENING NEW YORK FOR OVER 53 YEARS !
Article written by our Staff Horticulturist, Peter B Morris, BSc, MSc, MBA
All photographs used with permission @SHUTTERSTOCK
