- African Aloe
- Agastache 'Apricot Sunrise'
- Agastache 'Ava'
- Agastache 'Catalina Sunrise'
- Agave aktites
- Agave Cactus
- Agave cerulata
- Agave colimana
- Agave deserti simplex
- Agave durangensis
- Agave ferox
- Agave flexispina
- Agave gentryi
- Agave guiengola
- Agave impressa
- Agave isthmensis
- Agave lechuguilla
- Agave macroantha
- Agave ocahui
- Agave peacockii
- Agave polyacantha
- Agave potatorum
- Agave shawii shawii
- Agave toumeyana bella
- Agave toumeyana toumeyana
- Agave wocomahi
- Agave xylonacantha
- Alamo Canyon Penstemon
- Alamos Barrel
- Alicoche
- Aloe 'Blue Elf'
- Aloe aculeata
- Aloe broomii
- Aloe claviflora
- Aloe conifera
- Aloe cooperi
- Aloe cryptopoda
- Aloe dawei
- Aloe discoinsii
- Aloe falcata
- Aloe gariepensis
- Aloe harlana
- Aloe haworthioides
- Aloe humilis
- Aloe pachygaster
- Aloe porphyrostachys
- Aloe prinslooi
- Aloe reitzii
- Aloe reynoldsii
- Aloe sinkatana
- Aloe vacillans
- Aloe Vera
- Aloe zebrina
- Alvordia
- Angelita Daisy
- Apache Mt Coral Bells
- Apache Plant
- Apache Plume
- Apple Green Agave
- Arizona Blue Curls
- Arizona Blue Eyes
- Arizona Blue Star
- Arizona Columbine
- Arizona Cypress
- Arizona Jewel Weed
- Arizona Madrone
- Arizona Mescal Bean
- Arizona Poppy
- Arizona Rib Pod
- Arizona Rosemallow
- Arizona Rosewood
- Arizona Sage
- Arizona Skullcap
- Arizona Sycamore
- Arizona Thistle
- Arizona Walnut
- Arizona Wild Cotton
- Arroyo Blue Salvia
- Arroyo Lupine
- Arroyo Sweetwood
- Artichoke Cactus
- ASDM Hybrid Palo Verde
- Aster
- Atascosa Rock Pixie
- Autumn Sage
- AZT Hybrid Palo Verde