Tall sunflower varieties should be thinned to stand about 24 inches apart, while the dwarf forms can be spaced about a foot apart.
From the stltoday.com
It's in the sunflower family, and produces tall, leafy clumps topped with bright yellow sunflower-like flowers.
From the sacbee.com
David Edwards'14-foot-tall wind-driven sunflower sculptures gather and store energy through wind turbines and solar panels.
From the post-gazette.com
Narrowleaf sunflower can grow 6 to 10 feet tall and makes a spectacular impact for larger garden spaces.
From the delawareonline.com
While narrowleaf sunflower can grow 6 to 10 feet tall, smaller cultivars have been developed that are perfect for almost any sunny garden.
From the delawareonline.com
If you're hunting on the edge of a sunflower field or other tall cover, try to position yourself so the birds fall in a place where you have a good chance of finding them.
From the dallasnews.com
When Eddie arrived at the pensioner's home he didn't expect to see her sunflower was a shrivelled plant barely over a foot tall.
From the gazettelive.co.uk
They often produce sunflower-like blooms in summer which make spectacular cut flowers and their tall stems provide living screens, windbreaks or shading for the south side of a greenhouse.
From the morningstaronline.co.uk
Boe said cup plant, or Silphium perfoliatum, is a member of the sunflower family found in moist low ground in the eastern Great Plains, where it can grow more than 7 feet tall.