Amaranthe entered service in January 1805 under Commander
Edward Pelham Brenton. She then deployed to the
North Sea. On 2 January 1806 she captured
Juno.
Amaranthe captured
Hoffnung at the commencement of hostilities with Prussia. On 3 September 1807,
Amaranthe captured
Louisa Wilhelmina.
Amaranthe sailed for the
Leeward Islands on 20 April 1808. After joining a squadron gathered off
Barbados for the invasion of
Martinique,
Amaranthe participated in blockading the French West Indian islands. On 11 November,
Amaranthe was in company with when
Circe captured
Ruthy. That same day,
Amaranthe, together with
Circe and captured the American vessel
Intrepid. Nine days later the same three British vessels, together with
Unique, participated in the capture of
Mary and Allen. Prize money was paid in 1838. On 20 November
Amaranthe,
Circe, ,
Eperviere, and
Unique participated in the capture of . Prize money was paid in 1814, and 1839. On 13 December 1808
Amaranthe joined and in destroying the French 16-gun schooner
Cygne and two other schooners near Pearl Rock,
Saint-Pierre, Martinique. Brenton then volunteered to destroy the schooner grounded near
Cygne. Men from
Amaranthe and boarded the schooner and set fire to her too. Command passed to Commander George Pringle in December 1808, but he was in command of . As a result, he did not actually assume command until after January 1809.
Amaranthe took part in the successful
invasion of Martinique in February 1809. During this campaign Pelham served on shore with a detachment of sailors and held the temporary Army rank of lieutenant colonel. In 1847 the Admiralty authorized the NGSM with clasp "Martinique" for the campaign. In April 1809, a
strong French squadron arrived at the
Îles des Saintes, south of Guadeloupe. There they were blockaded until 14 April, when a British force under Major-General
Frederick Maitland invaded and captured the islands.
Amaranthe was among the naval vessels that shared in the proceeds of the capture of the islands. On 18 June 1809
Amaranthe, under the command of Commander Pringle, was among the vessels in sight when captured the French frigate
Felicité, and so shared in the
prize money.
Amaranthe also participated in the
capture of Guadeloupe in January and February 1810. In 1847 the
Admiralty awarded the Naval General Service Medal with clasp "Guadaloupe" to all surviving participants of the campaign. Commander Richard Yates assumed command in July 1814. ==Fate==