Only available in the summertime.
Echinodorus harbii is a classical looking Amazon sword type plant that has strong green stems with oval shaped leaves. Like all Echinodorus, they're heavy root feeders which means they need root tabs placed below them and plenty of fertilisers in the water (remember, fertilisers DO NOT cause algae).
In addition, make sure you always fertilise with a good quality nutrient like Neutro T and Neutro CO2 (for carbon) and you'll find this plant does very well for you. Great for beginners.
Note: The picture is for display purposes only and is purely an example of what is available and not what you will receive as each plant is of course different to the next. 8cm pots tend to be 3 plants placed in a pot making them very good value.