Accession Count: 10

Agave murpheyi

Common Name: Variegated Murphey's agave
Family Name: Asparagaceae
Botanical Name: Agave murpheyi
Sub Species:
Variety:
Forma:
Cultivar: 'Variegata'
Characteristics: Agave murpheyi f. variegata is a medium sized agave that forms rosettes to 60-90 cm (12-36”) tall by 90 cm (36 in) across (8, 9, 10). Leaves in the rosette are with straight, rigid, upright, linear to spatulate, 50-65 cm (20-25 in) long, and 6-8 cm (2-3 in) wide, with a short-acuminate, and straight or slightly inward curling tip curling (8). Leaf color is described as  medium-light green overall, as a result of the glaucous light gray to bluish-green foliage  and the yellow banding on the margins (8) The variegation on the leaf is sometimes limited to the margins but occasionally appear as multiple yellow stripes in the middle of the leaf, giving the leaf a more yellow-light green color overall (8). Leaf margins are undulate and contain small (2-3 mm), singular, sharp, serrated, teeth regularly spaced 1-2 cm (1/2- 1 in) apart and which are brown in color at their base but become gray at the cusp (8, 9).  The leaves have a short, 12-20 mm long, conic, very shortly grooved or flattened above, dark brown- greyish apical spine (8). At flowering, leaves turn yellow-red (8).  After many years of rosette growth, flower are borne the top third of a 4 m (13 ft) tall, narrowly paniculate stalk, with 10-20 lateral, slightly ascending 10 cm (4 in) long branches in April – June (8, 9). Flowers are grouped with 12–21 flowers per cluster (8). They are erect, 5-7.5 cm (2-3 in) long, greenish in color and have purple or brown tips and reddish-purple colored petal margins (8, 9).  Bulbils form in the flower axils.
Compound: Aga mur Var
Geographic Origin: Central Arizona
Ecozone Origin: Nearctic
Biome Origin: SW
Natural History: All currently existing populations of Murphey’s agave are found between central Arizona to Sonora (3) at ancient Native American archeological sites, and the exact origin is unknown (6). It is native to rocky slopes of central Arizona and Sonora, Mexico from 1,500 to 3,000 feet (9).
Cultivation Notes: Agave murpheyi has similar cultural requirements to the more common variegated American agave (century plant). Variegated Murphey's agave will produce offsets for re-generation (9). Variegated Murphey’s agave offsets quickly compared to many other agave. Further, A. murpheyi is probably self-incompatible and likely requires outcrossing (8). Flowers attract a variety of potential pollinators, but rarely produce any mature fruit. Instead, the mother plants will produce in the vicinity of the former flower on the stalk during or prior to the monsoon rains.  While the bulbils persist on the stalk, they will eventually desiccate and fall from the plant (8). If planted, they rehydrate, develop roots and immediately begin to grow (8). The  variegated Hohokam agave is a slow-grower but adaptable to be planted in full sun with reflected heat or in shade (9). It is drought-resistant, but appreciates some supplemental irrigation during periods of hot, dry weather. It tolerates many soil types but requires the soil be well-draining (be careful not to over water) (9).  It can be grown in the landscape or as a container specimen (2). It is hardy for USDA zone 9a (25°F) through zone 11 (50°F) (8, 9, 10).
Ethnobotany:
Variegated Murphey’s agave resembles the variegated forms of Agave americana, but differs in that it is much smaller (9). It is considered, beautiful, adaptable and worthy of a place in every Agave collection (8, 9). However, avoid planting it near sidewalks or heavily used pedestrian areas due to its sharp, terminal spines. In landscapes, it combines will with other and low-water-use agaves, succulents and woody shrubs and trees (9). While the variegated form of Murphey’s agave is primarily appreciated as a landscape ornamental accent plant, the straight species, like other agave, is used for food and beverages (4, 6). The leaves are cut off to leave the “heads” (cabeza) or “hearts” (corazón), which are roasted in large pits and eaten (4, 6). The fresh juice is called aguamiel, or honey-water (6). The juice from the head can be steamed and fermented into an alcoholic beverage called pulque, or further distilled into a type of liquor called mescal (6), or made into syrup (4). An agave is good for harvest when it is just about to flower; this indicates that it has a large amount of sugar stored inside (4).

Wendy Hodgson describes the process for harvesting and baking the agave hearts for many native tribes. The process differs a little between them, but they follow a similar pattern: when the agave were about to send up flower stalks, natives would seek out and often set up camp in areas with many agave. Roasting pits were dug out with digging sticks and a fire was started, usually by a person who was born in the summer or considered to be lucky. When the fire died down to embers, the agave hearts were placed on the embers in between layers of vegetation, and then covered with earth. The agave hearts were roasted for about 48 hours during which time taboos such as sexual relations were avoided (otherwise they would not bake properly). Women would mark their agaves in various ways or position them so that they could identify them when they were done roasting. The baked agave was often pounded into sheets or cakes and dried to be stored for later (4).

Agave plants have also been used for fiber for making clothing, sandals, and other textiles, as well as lances, fire hearths, musical instruments, soap, and medicine (4, 5).

Murphey’s agave has been used by the San Carlos Apache (Pueblo), White Mountain Apache (Pueblo), Northeastern Yavapai, Salt River Pima, and Hohokam and Tohono O’odham peoples (4). A. murpheyi is unique in the fact that it was cultivated extensively by the Hohokam people (2, 4, 5), thought to be the ancestors of some modern O’odham peoples (4). It was cultivated over hundreds of thousands of acres over what is today Arizona and Sonora for food and fiber (2, 4, 5). It has certain attributes which lend itself well to cultivation for these purposes: it grows to be quite large, matures quickly, and readily produces offsets by rhizome or in the leaf axils, as well as producing numerous small plantlets on the flower stalk which can fall down and root (3, 4). These plantlets, or bulbils, emerge from floral meristems and are clones, rather than viviparous seedlings (1). It is considered to be a very sweet-tasting agave, with leaves that contain fine, rot-resistant fibers, and are easy to cut and bear small teeth (4). Also, the flowering time for populations of Murphey’s agave is almost synchronous, which makes harvesting more convenient (4). The Hohokam assembled basalt check-dams (lines of rocks), rock piles, and terraces, in order to slow and catch water where the agave grew, and those remaining archaeological sites are where many clonal populations of A. murpheyi are found today (2, 4, 6). Since this species rarely produces seeds in the wild (3), as noted by Wendy Hodgson, “clones of A. murpheyi are living archaeological assemblages preserved in their cultural landscape for more than five centuries after their presumed cultivation” (4).

Height: 0 - 5 feet
Width: 0 - 5 feet
Growth Rate: Moderate Growing
Grow Season: Fall
Flower Season: Fall
Color: Yellow
Function: Accent
Spread: Spreading
Allergen: Non-allergenic
Invasive: Benign
Toxicity: Benign
Hardy: Hardy
Water Use: Low water Use

Citations:
_1. Genetic consequences of pre-Columbian cultivation for Agave murpheyi and A. delamateri. (2007) Journal of Botany. Volume 93 Issue 9. 

2. Evidence for Large-scale Agave Cultivation in the Marana Community. in: University of Arizona Press.

3. Arizona Game and Fish. 

4. Hodgson, W.C. (2001). Food Plants of the Sonoran Desert. Tucson: University of Arizona Press. Print.

5. Irish, M. (2003). Arizona gardener’s guide. Tennessee: Cool Springs Press.  Print.

6. Phillips, S.J. and Comus, P.W.  (2000). A Natural History of the Sonoran Desert. Tucson: Arizona-Sonora Desert Museum Press. Print.

7. Irish, Gary, and Mary F Irish. Agaves, Yuccas, and Related Plants: A Gardener's Guide. 1st ed., Timber Press Incorporated, 2000.

8. The Encyclopedia of Succulents

9.  Horticulture Unlimited 

10. Happy Valley Plants

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Agave murpheyi