Plant of the Week 13: Blue-Stemmed Goldenrod (Solidago caesia)

           The arching stems of Blue-Stemmed Goldenrod give this plant a graceful and elegant look, especially when it is in full bloom. Blue-stemmed Goldenrod is a member of the Aster family (Asteraceae) and is one of over 25 species of Goldenrod native to Maryland. Goldenrods are sometimes blamed for causing hay fever, but it is actually Ragweeds (Ambrosia spp.) that lead to allergy symptoms. Pollen from goldenrods is heavy and sticky, so it does not become airborne. Blue-Stemmed Goldenrod gets its name from the color of the stems, which have a bluish tone when mature.

           Bright yellow flowers hug the stems and also appear in terminal clusters. Blooms last for about a month and flowering time is in the late summer and early fall, from August to October. Plants have more flowers in sunnier locations and can put on quite a show when in full bloom. However, they are quite shade tolerant and can flower even under the canopy of trees where there is little direct sunlight.

           Wildlife appreciate this 1 – 3 ft tall perennial, especially in the fall. It is a late-season pollen and nectar source for bees, butterflies, and other pollinators. It is the larval host for many caterpillars, and 115 different species have been documented feeding on goldenrods. The seeds provide a fall and winter food source for many birds.

            In nature, Blue-Stemmed Goldenrod is found in upland woodlands, open woods, clearings, bluffs, and rocky cliffs. It is usually found in higher quality woodlands where deciduous trees (particularly oaks) are prevalent. In the garden, it makes a great addition to pollinator gardens and woodland gardens. It is not as aggressive as some other goldenrods, but seedlings can spread across garden beds.