Agave angustifolia 'Marginata' (Caribbean Agave) is a medium sized agave - 4 feet tall by 4 feet wide with a dense rosette, rounded in outline, atop a short trunk 1 to 2 feet tall that is usually hidden until plants get some age (about when they bloom!). The 2 foot long leaves are fairly stiff, narrow (2-4 inches) and concave towards the middle with a broad central band colored pale green and strong creamy white margins that often have a flush of pink.
Agaves need full sun and gritty soil that percolates easily. They can even do quite well when potted but use an unglazed clay pot that will allow evaporation of excess moisture.
Water needs are moderate to light depending upon the heat of the season but the Cactus should be allowed to dry out before irrigation
In growing season they benefit from the application of a granulated time release fertilizer that will provide nutrient to the plant.
It is also a popular landscape plant in beach gardens