Purple Coneflower / Echinacea
Purple Robe Cup Flower
Purple Shamrock
Pyracantha, Fiery Cascade
Pyracantha, Graber
Pyracantha, Kasan or Firethorn
Pyracantha, Lalandei
Pyracantha, Scarlet
Pyrethrum / Painted Daisy
Quail Bush
Rain Cloud Texas Ranger
Rainbow Leucothoe or Fetterbush
Ranunculus, improved
Red Barrenwort
Red Bunny Tails
Red Hot Poker
Red Hot Poker, Thompson
Red Yucca
Redbud, Chinese 'Avondale'
Redbud, Eastern