Plant Material › Tremlett's Bitter (Geneva) Image 1 of 1 Tremlett's Bitter (Geneva) $0.00 sold out The Geneva selection of Tremlett’s Bitter is a cider apple. The fruit I tasted fresh was bitter, astringent and puckery. Sold Out Added! The Geneva selection of Tremlett’s Bitter is a cider apple. The fruit I tasted fresh was bitter, astringent and puckery.