He worked for several years at Dickinson's nursery in Guildford before being employed at Fraser's Lea Bridge nurseries in Leyton, Essex. In 1839.
He moved to Park Hill, Streatham, as an under-gardener, in 1842 and became clerk to Robert Marnock, who was laying out the Botanic Society gardens in Regent's Park.
In 1848, Moore was appointed curator of the Society of Apothecaries' botanic garden in Chelsea (the Chelsea Physic Garden).
Moore died at his home at the Chelsea Physic Garden on 1 January 1887, and was buried in the Brompton cemetery. He left a widow, Elizabeth. They had at least one child, a son.
Moore's collection of ferns was bought by the Kew herbarium.
Thomas is remembered for these wonderful quips like:
“The soul cannot thrive in the absence of a garden,” or “Garden as though you will live forever"
“As for rosemary, I let it run all over my garden walls...because it is the herb sacred to remembrance and to friendship.”
Source Anne Pimlott Baker and the Daily Gardener