Ajuga Feathered Friends 'Fierce Falcon' is a semi-evergreen bugleweed with glossy, purple to black foliage and cobalt-blue flowers.

Ajuga Feathered Friends 'Noble Nightingale' is a semi-evergreen bugleweed with metallic black leaves and cobalt with blue flowers.

Ajuga Feathered Friends 'Parrot Paradise' is a semi-evergreen bugleweed with yellow, orange, and red leaves with blue flowers.

Ajuga Feathered Friends 'Petite Parakeet' offers shades of yellow, red and green leaves with cobalt blue flowers.

Ajuga Feathered Friends 'Tropical Toucan' is a semi-evergreen bugleweed with golden yellow leaves with blue flowers.

Albuca bracteata (syn. Ornithogalum caudatum), pregnant or sea onion, looks like an onion with thick, bright green leaves.

Alchemilla ellenbeckii is an unusual, creeping lady’s mantle with trailing, reddish stems with tiny leaves and electric green flowers.

Alocasia baginda 'Silver Dragon' is a small jewel alocasia with striking silver foliage with deepest green to black veins.

Alocasia macrorrhizos has huge, thick, sculpted and glossy green leaves hold upright on dramatically rigid stems.

Alocasia macrorrhizos 'Borneo Giant' is an upright elephant ear with huge, thick, sculpted, glossy blue-green leaves.

Alocasia macrorrhizos 'Variegata' has thick, sculpted and glossy green leaves with cream variegation.

Alocasia reginula 'Black Velvet' is a compact and miniature jewel with dramatic dark foliage and striking white veins.

Alocasia Masquerade 'Mayan Mask' is an elephant ears with upright, deep green leaves with light green veins and burgundy reverses.

Aloe humilis 'Hedgehog' has flaming spires of orange-red flowers above attractive succulent foliage.

Aloe polyphylla is a stunning, rare succulent with light green leaves arranged in a mesmerizing spiral.

Aloe polyphylla 'Swirl' is a stunning, rare succulent with light green leaves arranged in a mesmerizing spiral.

Aloe 'Christmas Carol' is a small, striking, colony-forming cultivar with green leaves and dramatic glowing red, serrated edges.

Aloe 'Christmas Sleigh' is a small, striking, colony-forming cultivar with blue green to purplish leaves with dramatic, glowing, salmon-pink, serrated edges.

Aloe 'Delta LIghts' is a striking cultivar with broad, green leaves dramatically flecked with short creamy white lines.

Aloe 'Oik' is a small, striking, colony-forming cultivar with green leaves and dramatic glowing coral pink, serrated edges.

'Pink Blush' is a small, easy-to-grow Aloe with cute leaves in shades of white and pink with numerous raised bumps and stripes.

Aloe 'White Fox' has spires of orange-red flowers above attractive succulent variegated foliage.

Alpinia galanga, or galangal, is a tropical plant grown for its pungent, culinary rhizomes and beautiful creamy-white flowers.

Ananas comosus 'Florida Special' produces delicious pineapples studded with red highlights.