Water

Asclepias curassavica

Semi-woody Perennial

Brilliant red/yellow blooms atop each stem in fall. Green leafy stems. Can be grown as an annual; collected seeds can be planted in spring.

Asclepias fascicularis

Herbaceous Perennial

Large, narrow leaves. Pinkish white flowers. Coastal Clay Soils-tolerant. Attracts Monarch Butterflies.

Asclepias fruticosus

Gomphocarpus fruticosus
Perennial Milkweed

Butterfly plant, a primary host to the Monarch butterfly in its native habitat. Star-shaped waxy flowers with large round hairy seedpods. Deer-resistant. Poisonous to humans.

Asclepias physocarpa

Gomphocarpus physocarpus
Perennial

Monarch butterfly host. Large, round pendant seedpods.

Asclepias speciosa

Evergreen Perennial

Large gray leaves with astounding pink flowers that give the impression of fireworks. Attracts butterflies, as well as provides them with protection from predators after feeding.

Asclepias subulata

Herbaceous Perennial

Nearly leafless stems do great with very low water in very fast draining soils. Unusual pale creamy-yellow flowers at the ends of each stem. Attracts butterflies.

Asclepias tuberosa

Herbaceous Perennial

Dies back in winter and re-sprouts from its underground tuber each spring. The brilliant orange or red flower clusters appear in midsummer followed by attractive green pods. Prefers full sun but can handle light shade.

Aspidistra elatior

Evergreen Perennial

Can be grown outside in shade, or indoor as a leafy green houseplant. Easy to grow. Weird purple star-flowers at the soil level.

Asplenium bulbiferum

Tufted evergreen fern, fronds are a deep emerald green. Hardy outdoor and great as a houseplant. Hardy to 20F.

Asplenium trichomanes

Evergreen Fern

Pinnate fronds with roundish leaflets. Bright shade preferred. Alpine shade rock gardens. Great as a houseplant, works well in terrariums.

Astelia banksii

Evergreen Perennial

Great for containers or as a garden focal plant. Silver leaves are slightly recurved. Prefers occasional deep watering.

Aster “Wartburg Star”

Evergreen perennial

Lavender flower with yellow center, produces huge number of flowers through the summer. Easy to grow, great for cut flowers.

Aster alpigenus

Perennial Herb/Wildflower

A small violet or lavender flower perched atop unbranched stems with narrow leaves, above low grouping of last year’s leaves. Many blooms in late winter through spring.

Aster chilensis “Purple Haze”

Semi-evergreen perennial, drought deciduous

Showy deep-purple blossoms are attractive to butterflies. Grows on dry banks and grassy fields to 5000 ft. Violet flower with yellow center.

Aster frikartii “Monch”

Semi-evergreen perennial

Showy lavender blooms are attractive to butterflies and bees. Fall bloomer. Can handle clay soils.

Asteriscus maritimus

Evergreen Perennial

Compact, low growing perennial with golden-yellow daisy flowers year round. Will tolerate regular irrigation with fast draining soil.

Astroloba foliosa

2″ rosettes grow to 12″h.; pups at base; light-shade, protect from frost

Astroloba herrei

2″ rosettes grow to 12″-18″h.; pups at base; shade tolerant

Astrophytum asterias

Small solitary globular species, to 4″d.; yellow flowers; spineless areoles.

Astrophytum capricorne

4″d. to 8″h. with long and twisted spines, many yellow/red blooms. Highly varied patterning of white spots.

Astrophytum caput-medusae

Digitostigma caput-medusae

Rare, endangered. Short round stem with supersized horn-like spotted green tubercles. Yellow flowers. Grows in shaded spots among scrub plants. Fast grower. Growth season is March thru August. Can lose tubercles if too dry in summer.