In the Garden
Horsetail, or Equisetum hyemale, is one poorly behaved plant, known to take over entire landscapes. That is, unless you plant it in a place where its roots are contained. That's what you see here, and it's a nifty way to both screen out the world and bring green into view. The raised concrete planters are exactly what's needed to corral the densely planted stands of horsetail.
Horsetail (Equisetum hyemale) in raised concrete planters
Felco F-2 Classic Manual Hand Pruner, $52