Jimson Weed, Sacred Datura, Jerusal
Jojoba
Jojoba Vista
Joshua Tree
Jujube, Chinese Date
Jumping Cactus, Chainfruit Cholla
Jupiter's Beard, Red Valerian
Karl Foerster Feather Reed Grass
Katie Ruellia
Kidneywood
Knife Acacia, Knife Blade Acacia
Krauter Vesuvius Flowering Plum
La Jolla Bougainvillea
Lady Banks' Rose
Lamb's Ears
Langman's Sage
Lantana
Large-flowered Blue Star
Large-spine Agave
Lavender Cotton
