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Arizona, Arizona gardening, Arizona garden, Arizona Climate, Arizona Region

Arizona

Selecting plants suited to the Arizona climate is a key step to success.

A plant's performance is governed by many climate related factors including the length of the growing season, the amount of rainfall, winter lows, summer highs, wind or humidity. Various initiatives have taken place to determine how well plants would withstand the cold winter temperatures (Plant Hardiness Zones) or when plants would start suffering from the heat (Plant Heat Zones). A more sophisticated approach has been followed by Sunset which defines Climate Zone Maps based not only on hardiness or heat tolerance, but also on precipitations, wind, humidity and various other climate related factors.

Arizona lies in Climate Zones 1-3, and 10-13. If you know your climate zone, find the best plants or exciting garden ideas for your geographic area.




Agave nickelsiae (King of the Agaves)

An unforgettable sight, Agave nickelsiae, previously named Agave ferdinandi-regis, is an evergreen, perennial succulent forming a striking compact rosette of stout, smooth and spineless, dark olive green leaves. Each leaf is beautifully adorned with ornamental white bud prints. Lacking teeth along the edges, they instead exhibit narrow white margins and are tipped by a contrasting black terminal spine.

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Agave ovatifolia 'Frosty Blue' (Whale's Tongue Agave)

Surprisingly cold hardy, Agave ovatifolia 'Frosty Blue' (Whale's Tongue Agave) is an evergreen, perennial succulent forming a solitary rounded rosette of thick, broad, distinctively cupped, gray to powdery-blue leaves. Adding interesting texture and interest year-round, the leaves are lined with small teeth along their margins and tipped with a dark gray terminal spine.

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Agave ovatifolia (Whale's Tongue Agave)

Surprisingly cold hardy, Agave ovatifolia (Whale's Tongue Agave) is an evergreen, perennial succulent forming a solitary rounded rosette of thick, broad, slightly cupped, gray to powdery-blue leaves. Adding interesting texture and interest year-round, the leaves are lined with small teeth along their margins and tipped with a long terminal spine.

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Agave parryi (Artichoke Agave)

Surprisingly cold hardy, award-winning Agave parryi (Artichoke Agave) is an evergreen, perennial succulent forming pretty rosettes of thick, rigid, silvery-blue to silvery-green leaves, tipped and edged with short, dark spines.

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Agave parryi var. huachucensis (Artichoke Agave)

Fairly compact and cold tolerant, Agave parryi var. huachucensis (Artichoke Agave) is an evergreen, perennial succulent forming tight rosettes of broad, thick, rigid, silvery-gray leaves with a conspicuous dark terminal spine.

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Agave parryi var. truncata 'Huntington' (Artichoke Agave)

Highly sought after, Agave parryi var. truncata 'Huntington' (Artichoke Agave) is an evergreen, perennial succulent forming tight rosettes of thick, broad, short, pale blue-gray leaves with widely spaced small teeth and a wavy terminal spine. Dark reddish-brown on new leaves, the spines fade to gray on older leaves. Adding intriguing beauty, the leaves carry on their lower surfaces the distinct imprints of the thorny leaf margins of the previous outer leaf-bud.

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Agave parryi var. truncata (Artichoke Agave)

Fairly compact and cold tolerant, Agave parryi var. truncata (Artichoke Agave) is an evergreen, perennial succulent forming tight rosettes of broad, short, thick, silvery-blue leaves with conspicuous reddish-brown teeth and terminal spines.

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Agave victoriae-reginae (Queen Victoria Century Plant)

Incredibly attractive, award-winning Agave victoriae-reginae is an evergreen, perennial succulent forming a perfectly spherical, solitary rosette of thick, smooth and spineless, dark green leaves. Each leaf is adorned with almost 'hand-painted' white margins and a small terminal spine.

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Agave vilmoriniana (Octopus Agave)

Prized for its graceful foliage, Aloe vilmoriniana (Octopus Agave) is an evergreen succulent perennial adding great interest in the landscape. It forms a solitary rosette of long, slender, gray-green leaves that arch and undulate, resembling the tentacles of an octopus. The teethless edges of the leaves curl inward, particularly around the tips.

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Ageratum houstonianum 'Blue Horizon' (Floss Flower)

One of the tallest, Ageratum houstonianum 'Blue Horizon' (Floss Flower) features fluffy round clusters of lavender to purplish-blue flowers resembling asters.

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Ageratum houstonianum (Floss Flower)

An old favorite with its fluffy round clusters, Ageratum houstonianum (Floss Flower) is one of the few annuals to tolerate light shade

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Ajuga reptans 'Black Scallop' (Carpet Bugle)

Ajuga reptans 'Black Scallop' (Carpet Bugle) is a creeping perennial prized for its short spikes of fragrant, deep blue flowers and very glossy, near-black, scalloped leaves. Blooming in late spring to early summer, the flowers rise above the contrasting, spreading rosettes formed by the leaves, putting on an eye-catching display.

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Ajuga reptans 'Blueberry Muffin' (Carpet Bugle)

Fast growing, Ajuga reptans 'Blueberry Muffin' (Carpet Bugle) is a vigorous evergreen perennial prized for its blueberry-blue flowers and thick leaves, which quickly form a dense mat of attractive rosettes. Emerging with a bronze flush in mid-spring, the small but weather resistant, green leaves contrast nicely with the lavender-blue flower spikes

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Ajuga reptans 'Bronze Beauty' (Carpet Bugle)

Fast growing, Ajuga reptans 'Bronze Beauty' (Carpet Bugle) is a vigorous perennial prized for its rich blue flowers and contrasting bronze-tinged leaves, which quickly form a dense mat of attractive rosettes. Ajuga reptans is valued as a wonderful spreader making a colorful groundcover, which will thrive in shady areas where grass has difficulty growing.

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Ajuga reptans 'Burgundy Glow' (Carpet Bugle)

Noted for its wonderful tricolored foliage, Ajuga reptans 'Burgundy Glow' (Carpet Bugle) is a popular low-growing perennial prized for its short spikes of pretty blue flowers and contrasting creamy-white, rose-burgundy, and dark green foliage. Spreading more slowly than many other varieties, 'Burgundy Glow' will form over time a thick mat of attractive, lustrous rosettes.

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Ajuga reptans 'Catlin's Giant' (Carpet Bugle)

Award-winning Ajuga reptans 'Catlin's Giant' (Carpet Bugle) is an evergreen perennial prized for its large, glossy purplish-bronze leaves, 6 in. long (15 cm), which quickly form a dense mat of attractive rosettes.

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Ajuga reptans 'Chocolate Chip' (Carpet Bugle)

Noted for its extremely dwarf habit and chocolate foliage, Ajuga reptans 'Chocolate Chip' (Carpet Bugle) is a ground-hugging perennial prized for its bluish-purple flower spikes on display in mid to late spring. The blossoms rise slightly above the foliage of tiny, glossy, oval leaves which are chocolate with burgundy highlights.

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Ajuga reptans (Carpet Bugle)

Valued as a wonderful spreader making colorful groundcovers with its dense, attractive leaf rosettes, Carpet Bugle (Ajuga reptans) is a quick mat-forming grower which will thrive in shady areas where grass won't grow

Akebia quinata (Chocolate Vine)

Vigorously spreading, Akebia quinata (Chocolate Vine) is a dainty semi-evergreen, twining, woody vine with dangling racemes of small, wine-red flowers with a spicy, chocolate fragrance in spring. The blooms stand out against the bright green foliage of elliptic leaflets which becomes purple flushed in cold weather.

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Albizia julibrissin f. rosea (Silk Tree)

Fast growing, award-winning Albizia julibrissin f. rosea (Silk Tree) is a small to medium sized, deciduous tree with a flat-topped, spreading canopy of large, fern-like bipinnate, green leaves. Sensitive, the leaflets fold when touched and at night. Fluffy rose-pink, powder puff flowerheads, with prominent stamens, open in early summer and cover the tree until mid-summer.

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Alcea rosea 'Blacknight' (Hollyhock)

Providing architectural height to borders, Alcea rosea 'Blacknight' (Hollyhock) is a robust perennial which produces tall, sturdy spikes of funnel-shaped, deep black-purple, single flowers, 4 in. across (10 cm), with a bright buttery-yellow throat. Blooming from mid to late summer, the striking flowers are arranged all round the spike and bloom from the bottom up.

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Alcea rosea 'Fiesta Time' (Hollyhock)

Noted for its shorter stature, Alcea rosea 'Fiesta Time' (Hollyhock) is a short-lived perennial which produces sturdy spikes of large, double, cerise pink, fringed flowers. Blooming from mid to late summer, the striking flowers are arranged all round the spike and bloom from the bottom up.

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Alcea rosea 'Halo Blush' (Hollyhock)

Providing architectural height to borders, Alcea rosea 'Halo Blush' (Hollyhock) is a short-lived perennial which produces tall, sturdy spikes of large, funnel-shaped, white, single flowers, adorned with a bright fuchsia-red halo and yellow throat. Blooming from early to midsummer, the striking flowers are arranged all round the spike and bloom from the bottom up.

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Alcea rosea 'Halo Cerise' (Hollyhock)

Providing architectural height to borders, Alcea rosea 'Halo Cerise' (Hollyhock) is a short-lived perennial which produces tall, sturdy spikes of large, funnel-shaped, cerise pink, single flowers, adorned with a rich purple halo. Blooming from early to midsummer, the striking flowers are arranged all round the spike and bloom from the bottom up.

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