Ten teams participated in the 2011–12 Caribbean Twenty20: seven from the Caribbean and three foreign teams chosen by invitation. The three foreign teams were Canada (who had played in the previous two editions of the tournament), while the Netherlands and Sussex County Cricket Club replaced the two teams that had taken part the previous year. de Grooth was included in the 14-man squad and scored 15 runs from two matches. It was believed that the Caribbean Twenty20, held in January 2012, would provide good preparation for the Netherlands' participation in the 2012 ICC World Twenty20 Qualifier in March. The UAE hosted the qualifying tournament, and though the Netherlands made it to the preliminary finals they lost to Ireland and did not qualify for the World Twenty20 later that year. de Grooth played in 9 matches and scored 19 runs from 5 innings, and was dismissed just once.