Libra is one of the air signs. Librans are believed to be diplomatic and elegant. The Libra, with its symbol of the scales, personifies perfect balance and harmony. Romantic and charming, those born under this air sign are naturally kind and gentle. Those with this sign need harmony in their environment as well as in relationships. BIRTH SIGN FLOWERS, ideal for Librans Pale greens, All shades of green, pretty pink sand, all pastel shades of roses, tuberose, gladioli and freesia.. Clear blue is the color of Venus, ruler of Libra. A more unusual floral gift would be the Cymbidium orchid.