The Bittersweet programme by the Gateway Gardens Trust involved 80 free guided garden visits over two years, around more than 30 gardens in Wales with a range of community groups, schoolchildren and lifelong learners. The themes of the visits and a mobile exhibition were the links between the slave trade and historic gardens, their makers, what they planted, Welsh abolitionists and the wider links with local communities in Wales. Historic gardens provided the starting point, looking at how everyday vegetables and fruits - beans, potatoes, tomatoes etc. - first reached the UK from the Americas. The project also looked at the history of afternoon tea, and the links between sugar, cotton and tea and slavery. The groups reflected on how many industries, grand houses and gardens were built from wealth linked to slavery, such as Cyfarthfa Ironworks in Merthyr and the expansion of the slate industry at Penrhyn Quarry. Early 18th century-style newspapers were produced, aimed at schoolchildren and adults.
Gardens involved included Cardiff’s Bute Park, Swansea’s Singleton Park, the National Botanic Garden in Carmarthen, Gwydir Castle in Llanrwst, Dyffryn Gardens, Portmeirion, Penrhyn Castle, Picton Castle, Dinefwr Park and Castle and Aberglasney Gardens.
A touring exhibition exploring Hampshire's links with slave ownership and the abolition campaign was produced by (and featured material from) Hampshire Museums and Archives Service and Hampshire Record Office. The exhibition was on show in the Record Office foyer, before travelling to museums, schools and community centres around the county. The exhibition revealed that there were slave owners living in places in Hampshire such as the village of Hurstbourne Tarrant, and told the story of a slave-trading voyage in 1700 led and financed by men from the Titchfield area. Black servants, very likely former slaves, could be found in unlikely places such as Martyr Worthy and Bramdean. The abolition campaign was fought in the columns of the Hampshire Chronicle and the Hampshire Telegraph, and communities as diverse as Portsmouth, Whitchurch and Fordingbridge sent in petitions to Parliament on the subject. The exhibition also mentioned white slaves taken from the English coast by Barbary pirates, and the testimony of a group of emancipated slaves from Cuba who arrived in Southampton in 1855 on their way to Lucomi in Africa.