J

Jasmine officinalis (Hardy Jasmine)
Evergreen vine with fragrant white flowers.
Train on trellis or as a ground cover. Sun or Partial Shade. Zone 7

Jovibarba heuffelii
Hardy. Large dark green rosettes can be up to 6 inches tall by 12 inches wide. Light yellow flowers in Summer. Sun. Zone 7

Juncus decipiens 'Curley-Wurley'

(Curley-Wurley Dwarf Rush)
Great for pots, in the rockery or waterside. Evergreen curls with brownish flowers. 3 to 6 inches. Sun or partial shade. Zone 5-7