 He secretly assisted with the fitting out of the first Swedish expedition with "Fogel Grip" and "Kalmar Nyckel" to New Sweden in 1637 and engaged Peter Minuit to command it.When two expeditions turned out to be unprofitable for Blommaert, he withdrew.In those years, Blommaert was so heavily interested in seizing Spanish ships, which sailed from the Caribbean loaded with silver, to make the New Sweden colonization more successful.