On the death of his cousin, George Boscawen, he succeeded to the titles of Viscount and 6th Baron of Boscawen Rose, Cornwall. He also succeeded to the family seat of the Boscawens at Tregothnan. Lord Falmouth died on 6 November 1889 and is buried at St Lawrence's Church, Mereworth.
Horse racing
In 1845 following his marriage, he had access to Mereworth Castle in Kent which became the site of a large and successful stud, breeding Thoroughbred horses, and winning many classic races. He originally used the pseudonym Mr Valentine when he first started to race horses; his horses were first trained by John Scott at Malton, North Yorkshire and when Scott died in 1871 he had them trained by Mathew Dawson at Newmarket. Fred Archer, an apprentice of Dawson's, became Lord Falmouth's retained jockey in 1874 following Archer's win in that years 2,000 Guineas. Archer is described by the National Horseracing Museum as ″... the best all-round jockey that the Turf has ever seen...″, winning 2,748 races including 21 Classics – over half were for Lord Falmouth. Lord Falmouth was first in the list of winning owners in 1877, 1878 and 1880, and finished second in 1879. His winnings for 1880 was £16,061 with Bal Gal winning eight races and contributing more than £10,000 in prize money. His success in the Classics was such that Lord Rosebery had a special form printed on which to send him congratulations. Lord Falmouth retired from racing in January 1884 and was presented with a silver shield by Mathew Dawson and Fred Archer. His race horses were sold by auction at Matthew Dawson's paddock at Newmarket on 28 April, 1884. The total sum realised was 36,420 guineas at an average of 1,517½ per horse. Busybody raised 8,800 guineas and Harvester raised 8,600, the latter sold to Sir John Willoughby. His breeding stud was sold on 30 June 1884.
Queen Bertha – winner of The Oaks in 1863 and dam of Wheel of Fortune.
Silvio – winner of The Derby in 1877
Spinaway
Wheel of Fortune
The Falmouth Stakes was named in honour of Evelyn Boscawen and established in 1911. Originally restricted to three-year-old fillies it is now open to fillies and mares aged three years or older and run on the July Course at Newmarket over a distance of 1 mile. It is scheduled to take place each year in July.
Tregothnan Botanical Gardens
The gardens are first recorded in 1695 by the traveller, Celia Fiennes, in her book Through England on a Side-Saddle, when she visited Hugh Boscawen, a relative through marriage. The present gardens were developed by Evelyn Boscawen and his brother the Honourable and Reverend John Townshend Boscawen, who was rector of the nearby parish of Lamorran.