Costus scaber

Costus scaber is often sold under the name C. spicata, but that is a different plant that is not commonly cultivated here.  This is one of the "spiral gingers", so-named because of the way the leaves spiral around the stem of the plant as it grows.  The amount of spiral varies from stem to stem, in some cases being barely perceptible.

This species is also sometimes known as Indianhead ginger.
An orange "cone" structure forms when the stalks reach their maximum height of around 4 to 6 feet.  Orange, tubular flowers emerge one or two at a time from within the bracts of the cone, one flower per bract.  Each flower lasts one day.

Ants will sometimes be seen feeding on the sugary nectar that oozes from the bracts.  The orange cone will continue to elongate throughout the summer, eventually reaching 6-8 inches in length.

By late fall, the bracts start to separate and dry up.  At the same time, new little plantlets will start to grow on the stem of the plant, just below the flower structure.  As the spent stems decline, they'll fall to the ground where the small plants will take root and grow.
Costus scaber will bloom best in full to filtered sun.  The flowers have no fragrance, but are edible.  They have a pleasant flavor, a crunchy texture, and are juicy when you bite into them.  They're perfect for adding to fruit salads.

The rhizomes are thick with closely-spaced canes. They are not considered edible.

Costus scaber is normally evergreen, but even if frozen to the ground in winter, it will come back and be in bloom by early summer.  They can be grown in the ground in Zone 8 and higher.
The bract structure of this Costus also makes a long-lasting cut flower.
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