Group 12 South and West Plants-2010

Group 12 South and West Plants-2010 - Average annual...

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10 - 30 to 40 F 7 - 10 to 0 F 8 - 10 to 20 F 9 - 20 to 30 F 6 - 0 to -10 F Average annual minimum temp. 6a 6b 7a 7b 8a 8b 9a 9b 5b 5a 10a 10b USDA Plant Hardiness Zone Map
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Agave americana Century Plant Agavaceae Mexico (z9) Plant requires very well-drained soil, sand or gravely in full sun Once established very drought tolerant Plant suckers making if very difficult to control.Best in planters or surrounded by hardscape Tolerates salt spray Agave snout weevil larvae (control by sprays of diazonon)
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Plant can be 5 - 7’ high 8-12’ spread Leaves can be up to 6’ long Have fishhook spines on margins and terminal thorns Plant juice so acidic that it will burn skin on contact Plant extremely difficult to remove once established
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Agave americana has an extremely thick cuticle, which increases its tolerance to drought cuticle
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Plant will flower once after 25-50 years, then dies Inflorescence can be up to 40’ tall Flowers are 3”-4” yellowish flowers
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‘Marginata’ has yellow stripes on leaf margins ‘Mediopicta’ has a yellow stripe down the center sucker
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Bougainvillea spectabilis Bugambilia Nyctaginaceae Brazil (z9) Woody vine, with spines, that blooms constantly in equatorial regions, more seasonal away, with attractive bracts of purplish-pink. To 10 meters high. Prefers dry conditions and full sun, and is very salt tolerant. Can be pruned as a standard
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Flowers arise in axils in clusters of 3s, to 3-4 cm long… real petals are absent. The purplish-pink papery-bracts are the showy parts
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‘Raspberry Ice’ ‘Mary Palmer’ ‘Snow White’
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Carnegiea gigantea Saguaro Cactaceae Sonoran desert below 3,500’ (z9) 40’ by 2’ unless it has arms Arms develop only after ~50 yrs Plant lives 200 years State flower of Arizona Protected. Must be tagged to sell in nursery. Must be transplanted from new building construction site.
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When transplanting, orient in same direction relative to sun - older plants more difficult to transplant - young plants need protection from sun
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