Musa 'Siam Ruby'Musa 'Siam Ruby' at a glance: Musa 'Siam Ruby' delivers colour on a scale most foliage plants cannot even approach, sending up large leaves washed in deep ruby tones and spattered with lime green so the whole plant glows when backlit. Unlike subtler variegated bananas, this one reads bold from across a room or garden, which is why it works best where it has space and strong light to show off properly. It grows quickly in warmth and with regular