Flower-class sloop

The Flower class comprised five sub-classes of sloops built under the Emergency War Programme for the Royal Navy during World War I, all of which were named after various flowers. They were popularly known as the "herbaceous borders", in humorous reference to a well-known adage about the Royal Navy ("Britain's best bulwarks are her wooden walls"), as well as to a type of garden arrangement popular in the United Kingdom.

Fleet minesweepers

The Flowers were designed to be built at merchant shipyards, to ease the pressure on yards specializing in warships. The initial three groups were the first purpose-built fleet

4.7-inch naval guns

.

Acacia-class sloop: first group to be built, in 1915. 24 vessels built in two batches of 12. Two sunk during the war.
Azalea-class sloop: 12 vessels built in 1915. Slightly modified Acacias; two sunk during the war.
Arabis-class sloop: 36 vessels built 1915, a further eight for the French Navy. Five British, and one French vessel sunk.

Gentian and Myrtle were both lost to mines in the Baltic Sea on 16 July 1919.^[1]

Submarine decoys (warship-Qs)

The latter two groups, the Aubrietias and Anchusas, were designed as submarine decoys, or Q-ships, with hidden guns and a distinctive "merchant marine" appearance. These "warship-Qs" were thus the first purpose-built anti-submarine fighting ships, and their successor types were the anti-submarine sloops of World War II , which evolved into the modern anti-submarine warfare frigate during the 1939–45 Battle of the Atlantic.

Aubrietia-class sloop: 12 vessels built 1916; two sunk.
Anchusa-class sloop: 28 vessels built 1917. Saw service as Q-ships; six sunk.

Service

Some 112 Flower-class vessel in total were built for the Royal Navy, and a further eight for the French Marine Militaire. Of these, 17 British and one French Flowers were sunk.

Some members of the class served as patrol vessels throughout the world during the peacetime years between the wars, but almost all were disposed of by World War II. This allowed the majority of the class names to be revived for the new, smaller Flower-class corvettes.

Survivors

Two members of the final Anchusa group,

First World War, (along with the 1914 light cruiser HMS Caroline in Belfast, and the 1915 monitor HMS M33 in Portsmouth dockyard

).

References

^ Admiralty Estimates for 1919 (appendix) accessed 25 October 2016

External links

Media related to Flower class sloop at Wikimedia Commons

[1] Admiralty Estimates for 1919 (appendix) accessed 25 October 2016

[1]

v t e Flower classes of sloops
Anchusa class Arabis class Azalea class Acacia class Aubrietia class
Preceded by: Cadmus class Followed by: P class
List of corvette and sloop classes of the Royal Navy

Seaplane carriers		Empress^S^V Riviera^S^V Engadine^S^V Ark Royal^S Ben-my-Chree^S^V Campania^S^V Raven II^S^V Anne^S^V Vindex^S^V Manxman^S^V Furious^M Pegasus^S^V Nairana^S^V Argus^S^V Vindictive^S^V
Dreadnought battleships	Dreadnought^S Bellerophon St Vincent Neptune^S Colossus Orion King George V Erin^S Agincourt^S Iron Duke Canada^S Queen Elizabeth Revenge
Pre-dreadnought battleships	Royal Sovereign Majestic Canopus Formidable London Duncan King Edward VII Swiftsure Lord Nelson
Battlecruisers	Invincible Indefatigable Lion Queen Mary^S Tiger^S Renown Courageous Admiral^S^A
Armoured cruisers	Cressy Drake Monmouth Devonshire Duke of Edinburgh Warrior Minotaur
Heavy cruisers	Hawkins^A
Light cruisers	Town^G Arethusa C^G^C Danae^C Emerald^A
Protected cruisers	Apollo Astraea Eclipse Blake Pearl Edgar Powerful Diadem Arrogant Pelorus Highflyer Challenger Topaze
Scout cruisers	Adventure Forward Pathfinder Sentinel Boadicea Blonde Active
Destroyer flotilla leaders	Swift^S Faulknor Marksman Parker Thornycroft (or Shakespeare)^C Admiralty (or Scott)^C
Destroyers	A^G B^G C^G D^G E^G F G H I K L Admiralty M Hawthorn M Thornycroft M Yarrow M Yarrow Later M Medea Arno^S R^G S^G^C Talisman V and W^G^C
Torpedo boats	TB 81^S TB 98 TB 109 TB 114 Cricket^G
Monitors	Marshal Ney Abercrombie Lord Clive Humber Gorgon M15 M29 Erebus
Minesweepers	Racecourse Hunt Dance
Gunboats	Fly Insect
Submarines	A B C D E F G H^C J K L^C M^C R^C Swordfish^S V
Sloops	P Cadmus Flower Acacia Azalea Arabis Anchusa Aubrietia 24^C
naval trawlers	Castle Mersey
A All completed after the war C One or more completed after the war G Grouping of several classes M converted from Courageous class S Single ship of class V Conversions X Cancelled