Agave americana (Century plant) - 10 seeds
Very large, handsome evergreen lily-like blue-green foliage. Xeric qualities and a stunning bloom stalk with maturity at ten years or more. Makes a great landscape focal point or accent and can be used in pots away from foot traffic. Best in full sun, but can take light shade. Winter damage occurs after low winter teen temperatures and is persistent on leaf surfaces until it recovers.
HOW TO GROW?
Specimens even survive in pots or in the ground in the wet winters of the south coast of England. At the other extreme, it may be seen planted out in southern Arizona and Texas. They are usually cultivated outdoors in rock gardens, in cactus and succulent gardens, in Mediterranean-style landscapes, in borders, or as a specimen. Need full sun and a very well-drained, slightly acidic, sandy, or gravely soil. As an ornamental, it is also grown in containers where it stays much smaller than its outdoor brethren. Agave americana is theoretically hardy to -9° C, particularly when dry, and it is best to avoid severe freezing temperatures. Keep it in a cool, frost-free area in winter and put it out on the balcony or patio in summer. The Agave americana grows fairly fast in summer if provided with copious water but allows to dry thoroughly before watering again. During the winter months, one should only water enough to keep the leaves from shriveling. They do well in full sun or a lightly shaded area.
It can get very large, and it is armed with needle-sharp spines.