Maybe mine has hybridized with other Silphiums because it is 6' tall and growing in alkaline soul. I do like whatever it is because it gr...Read Moreows without human assistance of any kind, and blooms for a long time. Never needs watering. It can take some partial shade. Unfortunately the live oak has expanded and it is a leaning live oak so the flowers are in the low branches.
west Houston, TX (Zone 9a) | August 2006 | positive
This plant is native to the prairies, long-leaf pine savannahs, and roadsides in southeast Texas to Aransas county and east into Louisian...Read Morea and is rarely found anymore in Texas in its pure form. This is because it's genetic integrity is comprimized due to the fact that it hybridizes easily with the taller, more aggressive native Silphiums such as S. laciniatum (compass plant), S. albiflorum (white rosinweed), and S. radula (roughstem rosinweed).
Slender rosinweed is usually about knee-high and is a well behaved garden plant prefering acidic sandy to sandy loam soils that are well-drained. The 2-3" blooms are a large translucently clear yellow. The plant colonizes by rhizomes and is easily grown from seed or by dividing the rootball while dormant in winter.
Maybe mine has hybridized with other Silphiums because it is 6' tall and growing in alkaline soul. I do like whatever it is because it gr...Read More
This plant is native to the prairies, long-leaf pine savannahs, and roadsides in southeast Texas to Aransas county and east into Louisian...Read More