Good morning, this is probably a really very basic gardening issue with an obvious answer, but I don't have the experience to figure it out!
I wanted to grow sunflowers this year so sowed the seeds at the back of the border, figuring that that was the sensible place to put tall flowers. They grew-spindly at first then withered up and died ???? I also gave some seeds to my children to plant where they wanted-they chose right at the front of the garden, full sun by a tree-they are now strong and mighty ???? But they do look a bit out of place...
So, my question is-how do you grow tall plants properly so that they both thrive and look right? I want to grow Veronica and echinops next year but these are both tall, they need to go at the back but don't want them to suffer the same fate as my sunflowers!