The Ficus Alii, or Amstel King as it is sometimes called, is a large plant that originally came from Asia, Malaysia, and India. It was first grown commercially in Hawaii where it got the Hawaiian name “alii” which means “king.” Although a Ficus Alii is closely related to the Ficus Benjamina, the Alii variety is much more tolerant and forgiving; it rarely sheds leaves, tolerates lower light, and can be moved around without going into shock. A ficus Alii does grows about 25% slower than a ficus Benjamina. The leaves are quite different than those of the usual Ficus trees. They are medium green, 3″-10” long, narrow, willow-like, and thick. The newer hybrids such as the King Alii ficus have wider leaves. New growth on the ficus plant is a pretty, reddish-bronze color; but as the leaves mature they change to a medium green. These plants are considered poisonous and should be kept away from pets and children. Read more about common houseplants that are poisonous in Don’t Feed Me to Your Cat: A Guide to Poisonous Houseplants. If you want a ficus tree in your home or office, a Ficus Alii is a great alternative to the finicky Ficus Benjamina
You can put your Ficus Alii outside for the summer if it is never in the direct sun and evening temperatures do not go below 55°F (12.8°C).
The side facing the wall is not getting enough light. You need to turn your ficus Alii each week so that all sides are getting sufficient light or it will lose leaves.
The roots of a ficus Alii grow very slowly and the plant likes to be root- bound. Repot about every three years or so when the ficus has become root- bound.
Ficus trees get yellow leaves when they need more water. Green leaves fall off or get brown and crunchy and baby leaves turn black when a ficus is over- watered.