When you choose hardy, adaptable plants for your flower garden, you don’t need to worry about weather vagaries or odd micro-climates claiming your specimens. Instead, you can focus on fragrance, attracting wildlife, and just enjoying the vibrancy of your flowers. These eight perennial flowers will come back reliably each year, whether you live in Florida or Minnesota.  These cheerful yellow flowers attract butterflies while repelling deer, and don’t mind poor, rocky soil. If you like self-seeding plants, acquire an unnamed species, as ‘Moonbeam’ is sterile.