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As far as I can tell they are over 9 feet tall... What the hell did they bury in their front yard?!
Those look like good old "mammoth" sunflowers. I tried to grow 16 sunflowers this season from different varieties, and only 6 of those survived. They all became monsters.
Yeah wow. Those seem easy to have as a statement piece. I might try to ask them for some seeds since that article undersells them as a statement piece
You sure? That link mentions single large heads.
I'm growing half a dozen mammoth sunflowers that all have multi heads right now. They look exactly like OPs picture.
They may be a variant, but that's what they were called on the seed packet I used.
Biblically accurate sunflower.
Those are pretty common in Amsterdam. Both in public spaces and even street gardens
lol sunflowers are common here too, just usually you don't enjoy them from a 2nd floor window.
Looks like mammoth Russian sunflowers to me. We grow these every year along my driveway and the neighbors love them because they attract gold finches and red-headed house finches :-)