Quick Facts
LightFull sun to partial shade
WaterTypical succulent needs
Maximum Height24 inches / 61 cm
Maximum Width48 inches / 122 cm
HardinessUSDA Zone 10a
Minimum Temperature30°F / -1.1°C
PropagationDivision and offsets
ToxicityToxic to people and animals
DormancyWinter dormant
Growth RateSlow
Life CycleMonocarpic
FoliageBlue-gray
Identification
ShapeA tight, symmetrical rosette.
LeavesLong, narrow blue-gray leaves.
SpinesDark brown marginal teeth and black terminal spines.
FloweringPlants may take 15 years or longer to bloom.
How to Grow Black-Spined Agave
Light
Provide full sun to partial shade, with about six hours of sunlight daily.
Water
Water thoroughly, then allow the soil to dry completely.
Soil
Use fast-draining soil and a container with drainage.
Temperature
Protect the plant when temperatures approach 30°F (-1.1°C).
Propagation
Division
- Split the rhizome with a sharp, sterile knife.
- Keep healthy roots attached to every division.
- Allow each section to callous for one or two days.
- Replant in well-draining soil.
Offsets
- Remove an offset with a sterile tool.
- Allow it to callous for several days.
- Plant it in well-draining soil.
Scientific Classification
| Kingdom | Plantae |
|---|---|
| Order | Asparagales |
| Family | Asparagaceae |
| Subfamily | Agavoideae |
| Genus | Agave |
| Species | Agave macroacantha |
Safety: This plant has toxic sap and sharp spines. Wear gloves and eye protection when dividing, pruning or handling it.
Sources and Image Attribution
Plant details are compiled from the existing Xerophyte.Garden profile.
Primary image by Stan Shebs via Wikipedia.
