Agave 'Royal Spine'
Agave 'Green Steel'
This hybrid is probably a cross between Agave macroacantha and Agave victorae-reginae 'Compacta'.
Agave 'Royal Spine', also known as Agave 'Green Steel', is an attractive small Agave with rosettes of narrow, steely-green leaves with dark, spineless margins and a dark terminal spine. The rosettes grow up to 18 inches (45 cm) tall and up to 2 feet (60 cm) in diameter. It may be the same plant sold as Agave 'Little Shark'.
How to Grow and Care for Agave 'Royal Spine'
Light: These plants require full sun to part shade. If you are growing Agaves indoors, choose a bright, sunny window with as much sun possible. Agave plants love going outside from spring to fall.
Soil: Agaves will tolerate most soils as long as they have good drainage, but their preference is sandy or rocky soil.
Hardiness: Agave 'Royal Spine' can withstand temperatures as low as 20 to 50 °F (-6.7 to 10 °C), USDA hardiness zones 9a to 11b.
Watering: Mature plants are very drought tolerant. From spring to fall, water thoroughly your Agave when the soil mix becomes dry. In winter, water sparingly about once a month. Plants in containers require more frequent watering than those in the ground.
Fertilizing: Give your Agaves a small amount of fertilizer in the spring during the first two years.
Repotting: When the pot becomes full of roots, it has become pot-bound. If you notice you Agave becoming pot-bound, repot it with new soil in a new pot that is just slightly larger than the old one.
Propagation: Since it can take years to produce seeds, Agaves are usually propagated by offsets.
Learn more at How to Grow and Care for Agave.
Toxicity of Agave 'Royal Spine'
Agave 'Royal Spine' is not listed as a toxic plant, but it may be mildly poisonous to children and pets.
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