x Alworthia ‘Black Gem’
Aloe speciosa x Haworthia cymbiformis
AL-OH spee-see-OH-suh x ha-WORTH-ee-a sim-BIH-for-miss
x Alworthia is a bigeneric or intergeneric hybrid cross between Aloe speciosa and Haworthia cymbiformis.
Aloe speciosa Baker is the accepted scientific name of one parent of xAlworthia ‘Black Gem’. It was named and described as such by John Gilbert Baker in Journal of the Linnean Society in 1880.
Haworthia cymbiformis (Haw.) Duval is the accepted scientific name of the other parent. It was named and described as such by Henri August Duval in Plantae Succulentae, in Horto Alenconio in 1809. It was first named and described as Aloe cymbiformis by Adrian Hardy Haworth in Transactions of the Linnean Society in 1804.
I brought this x Alworthia ‘Black Gem’ home from Wildwood Greenhouse on May 9, 2019. It was unlabeled so I posted photos to the Facebook group called Succulent Infatuation. I usually get a pretty fast response and it is much better than trying to figure it out. Within no time, a member suggested it was a XAlworthia ‘Black Gem’. I did a little research on the name and I think she hit the nail right on the head but we shall see. If I find out this is not an x Alworthia ‘Black Gem’ I will change the name.
The cluster measures approximately 3 1/2” tall x 6 1/8” at the widest point. There are three rosettes plus two newer offsets in the pot. The pot measures 3 7/8” tall x 4 1/2” diameter pot.
Origin: Parents are from South Africa,
Zones: USDA Zones 9b-11 (25-40° F)
Size: About 6” tall
Light: Sun to part shade
Soil: Very well draining potting mix. Amend potting soil with additional pumice or chicken grit and pumice
Water: Regular watering during the summer but sparingly during the winter.
There is very little information online about this plant so hopefully, I can contribute a little experience as time goes by.
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