Echinocactus horizonthaloniusLem .
Blue Barrel Cactus , Devilshead , Devil - school principal Cactus , Devil ’s Head Cactus , Eagle ’s Claw , Eagle - pincer Cactus , Eagle ’s Claw Cactus , Horse Crippler , Horse Maimer , Silverbell Cactus , Turk ’s Head , Turk ’s Head Cactus
Echinocactus horizonthalonius subsp . horizonthalonius , Meyerocactus horizonthalonius
Photo viaedensouthwest.blogspot.com
Family : CactaceaeSubfamily : CactoideaeTribe : CacteaeGenus : barrel cactus
barrel cactus horizonthaloniusis native to the southwesternUnited Statesand centralMexico .
barrel cactus horizonthaloniusis an attractive , slow - produce cactus with a directly - topped or hemispherical , usually alone stem with 5 to 13 broad rib line with areoles that bear clustering of stiff spines . The stem ranges from pale gray - green to bright grey - gloomy and can raise up to 18 inches ( 45 centimeter ) tall and 8 column inch ( 20 cm ) in diam , but is commonly smaller . The rib are vertical to helically curve around the stem . The backbone are broadly speaking projecting or strongly decurved , more or less flattened , reaching up to 1.7 inches ( 4.3 curium ) in distance . They can be grayish , pink , tan , or brown . Each areole bears 5 to 8 radial spines grow close to the torso and 1 to 3 central prickle pointing downwards .
Photo viaamericansouthwest.net
The flowers are rose - garden pink or magenta , measuring up to 2.8 in ( 7 cm ) foresighted and 3.8 inch ( 9.5 cm ) in diameter , and appear at the top of the stems in early summer . They unfold around midday and unaired for the night . The fruits are pink or crimson , global to ovoid - cylindric , about 1.2 inch ( 3 cm ) in diameter , part or completely hidden by hairs of radical apex , and contain black or gray source .
USDA hardiness zones8b to 10b : from 15 ° F ( −9.4 ° C ) to 40 ° F ( +4.4 ° C ) .
These cacti do best in a sunny window , perhaps a southerly exposure . Plants that do not get enough sunlight will grow more slowly and fail to boom .
Photo viaamericansouthwest.net
It is decisive never to let these cacti be break to prolonged periods in pee or even very high humidness . They will suffer from putrefaction in the presence of humidity .
Echinocactusare vulnerable to plague , including aphids , mealy bug , scurf , and whitefly . Identify the infestation as early on as potential and plow it with the allow for - toxic option .
It is proficient to repot at the beginning of the growing time of year or summertime . To repot a cactus , ensure thesoilis dry before repotting , then gently dispatch the pot . Knock away the old soil from the roots , remove any rotten or dead tooth root .
Photo viaedensouthwest.blogspot.com
ascertain more atHow to Grow and Care for Echinocactus .
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