Black-Spined Agave (Agave macroacantha) in the Agaves Database

Common names:
Give a thumbs up Black-Spined Agave
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General Plant Information (Edit)
Plant Habit: Cactus/Succulent
Life cycle: Perennial
Sun Requirements: Full Sun
Full Sun to Partial Shade
Plant Height: 1-2 feet
Plant Spread: 2-5 feet
Leaves: Glaucous
Other: Black terminal spines adorn the tips of each leaf.
Fruit: Dehiscent
Flowers: Showy
Other: Reportedly this agave lives at least 15 years or more before flowering.
Flower Color: Green
Other: Green with a purple tinge.
Inflorescence Height: 10 -16 feet
Foliage Mound Height: 1-2 feet
Suitable Locations: Xeriscapic
Resistances: Deer Resistant
Rabbit Resistant
Propagation: Seeds: Can handle transplanting
Other info: Sow in shallow pots with a well draining, sterile mix; 50/50 organic/inorganic of coarse perlite, pumice; sphagnum peat or good compost. Avoid manures. Irrigate from below. Provide bright, indirect light and a transparent cover to retain moisture.
Propagation: Other methods: Cuttings: Stem
Other: Bulbils.
Containers: Suitable in 3 gallon or larger
Needs excellent drainage in pots
Miscellaneous: With thorns/spines/prickles/teeth
Awards and Recognitions: RHS AGM

Huntington Gardens

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Posted by sheryl (Hot, hot, hot, Feenix, AZ - Zone 9b) on Nov 7, 2013 10:15 AM

This is a beautiful plant that varies from silver to bit more blue.with small black teeth edging part way down the leaf and a black terminal spine. They tend to clump freely and form nice, rounded mounds.

This species needs some shade in the low desert's intense sun, but almost no supplemental water - a once a month soaking in the hottest parts of Phoenix summer is sufficient.

There is some evidence that this plant is resistant to the Agave Snout Weevil, Scyphophorus acupunctatus.

Propagation is primarily through pups.

One of my absolute favorite Agaves, in case you couldn't tell. 8*)

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Discussion Threads about this plant
Thread Title Last Reply Replies
Show off your Agave pictures here. by Stush2019 Jun 21, 2019 4:13 PM 170
Same? by jmorth Mar 9, 2017 9:53 PM 2
Cactus and Succulent chat 2016 by gg5 Apr 11, 2017 11:52 AM 1,827
Desert Botanical Garden, Phoenix, Arizona, November 17, 2015 by csandt Jan 18, 2016 10:37 PM 2

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