Plants have evolved all sorts of wickedly clever defense mechanisms, and the most primal—and effective—are thorns, prickles, and spines. Spiky plants can be a hassle for maintenance and ...

I've got a sunny, open area in my back yard outside of Hershey. I'd like to grow some tall, spiky-flowering plants, preferably perennials this year. Do you have any recommendations? A: Let's see ...

SOUTHERN CALIFORNIANS first planted Phormium en masse about a century ago, and with good reason: Those spiky leaves -- long ... Fickle as we are, the plant might have languished as a mere fad ...

If you have ever looked at a holly plant, you may have noticed that some leaves have smooth edges while others have spiky, pointed ones. Interestingly, some holly plants display both types of ...