Lobelia was born in Hardbottle and was renowned in the The Shire for her temper and greed. She married Otho Sackville-Baggins (Bilbos cousin) , and they had one child together, Lotho.

Her envy of Bag End was well-known; she could not wait to inherit it, and was furious when Bilbo made Frodo to his heir. When Frodo left for Crickhollow he sold Bag End to Lobelia.

During the War of the Ring, Lobelia was imprisoned in Lockholes for arguing with the Chief's Men, and attacking one of them with an umbrella.

When she came out, Lobelia was popular for the first time for bravely standing up to the Saruman's Men. She was crushed to find out her son had been murdered whilst she was in prison.

After the War of the Ring, Lobelia returned to her home village to live with the other Bracegirdles, giving Bag End to Frodo. When she died, she gave her money to Frodo to be used to help hobbits left homeless by Saruman and her son.