Mammillaria petterssoniiHildm .
Mammillaria apozolensis , Mammillaria huiguerensis , Mammillaria obscura
Family : CactaceaeSubfamily : CactoideaeTribe : CacteaeSubtribe : CactinaeGenus : Mammillaria
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Mammillaria petterssoniiis a smallcactuswith a global , light-colored green , usually solitary stem with muzzy axils and expectant 3 - angled tubercles tipped with bunch of spines . The root can grow up to 4.8 in ( 12 cm ) in diam . Each areole bears 6 to 7 retentive fundamental spines fence by 10 ( or more ) ok radial backbone . The central spines are orange - brown , becoming off-white with old age , and have a dark tip . They can acquire up to 0.8 inches ( 2 cm ) long . The stellate acantha are blank and raise up to 0.4 inches ( 1 cm ) long .
The flowers are pinkish - ruby to white , with cherry midveins , and can progress to up to 1 column inch ( 2.5 centimetre ) in duration and diam .
USDA hardiness zones9a to 11b : from 20 ° F ( −6.7 ° C ) to 50 ° F ( +10 ° C ) .
To encourage good anthesis , let the plants to savor a chill geological period in the wintertime and suspendwatering . Unlike many other cacti , which use their rib as storage gimmick , Mammillariafeature lift eminence , from which spine emerge . When you irrigate , the tubercles will expatiate to increase water storage . The flower emerge from the axil of these tubercles on the old twelvemonth ’s emergence , which answer for for their interesting halo upshot . The cactus must n’t be scupper to prolonged dampness and sitting water . Never let your cactus sit in a dish of urine . in conclusion , fertilizeduring the growing time of year for the best results .
Repot as needed , sooner during the tender season . To repotMammillaria , insure thesoilis wry before repotting , then gently remove the pot . Knock away the erstwhile ground from the root , removing any rotted or dead roots . process any cut with a fungicide . Place the plant in its new locoweed and backfill it with pot soil , spreading the roots as you repot . Leave the plant teetotal for a week or so , then commence to piss light to trim down the risk of exposure of stem rot .
See more atHow to Grow and Care for Mammillaria .
Mammillaria petterssoniiis native toMexico .
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