I have cardamom plant in my garden it always gives roses but never gives seeds ?

Question:

Answers:
If you bought a plant with a tag that says "Cardamom: Elettaria cardamomum," chances are great that
YOU HAVE THE WRONG PLANT!

Perhaps the widest misidentification in horticulture, the majority of cardamom plants sold in the US, are, in fact the Cinnamon Ginger, Alpinia nutans.
Don't feel bad, I've lived under this misconception for years, giving away numerous starts of mis-tagged plants!

The differences are obvious and easy to see:
>Alpinia nutans: Glossy, aromatic leaves on 3' or smaller plants. Rarely blooms, but flowers are on the end of a leafy stalk. Easy-going plant.

>Elettaria cardamomum: Fuzzy, up to 10' tall plants with flowers on short stalks along the ground. Fairly rare in ornamental cultivation.

http://davesgarden.com/pf/go/59557/...