The agave (Agavaceae) is commonly called the "century plant." The family includes around 200 species of perennial plants that form a rosette shape. They are a succulent that harbors water in their fleshy root system. Most varieties of the agave have sharp spines, but a few have soft leaves. The agave can flourish in a wide range of weather conditions, and many varieties can even withstand cold temperatures. The plants do not require a great deal of water to thrive, which makes them ideal in any garden setting. The agave can be grown in a garden or containers with ease.
Plant the agave in a soil mixture that is equal parts coarse sand, perlite, and peat if grown in a container. If the agave is to be grown outside, place 25 percent sand with 25 percent peat moss and mix into the garden soil.
Choose a location that offers full sun. If the plant is being grown inside, place it in a south-facing window or under a skylight. The agave adores full sunlight.
Water the agave when the plant is completely dried out. It does not like wet roots and will not thrive if the soil does not have optimal drainage.
Maintain a nighttime temperature above 55 degrees F if growing the agave indoors. The agave enjoys a daytime temperature between 65 to 70 to grow. The plant can easily withstand triple-digit temperatures, but during hot or cold stretches the agave will cease to grow.
Fertilize the agave every month in the spring and summer using a 20-20-20 fertilizer. Water the fertilizer into the soil completely.
Apply a fungicide in the early spring to prevent crown rot, which is a fungus known as phytophthora that can easily afflict the agave. The fungicide can be purchased under numerous brands at a local garden center. Apply according to the directions on the label.