The nectar in Mexican sunflowers must be infused with tequila. It’s an insect-a-go-go out there! The bees and butterflies are buzzing from the free nectar shooters. $1.29 well-spent – one packet of seeds produced a 6′ x 3′ hedge that won’t quit. I’m 5’8”; the plants started flowering a few weeks ago when they were about nose-high. Now they’re over my head. They’re planted in the only square that’s not closed off from the street. For less than it cost to have a soda with lunch today, I have the perfect natural fence! Another great feature of Mexican sunflowers, or any variety of sunflowers, is their heat tolerance – a great choice for hot Florida summers.