Dole Food Co. bought two fresh flower companies and agreed to acquire a third, part of its effort to offer more products to supermarkets that already buy its fruits and vegetables. Dole wouldn't disclose the purchase price, though it said in a regulatory filing it was negotiating to buy companies for about $150 million. The world's largest marketer of fresh fruit and vegetables said it bought Finesse Farms, an importer and marketer of roses, and Four Farmers Inc., which markets bouquets. Dole also signed a letter to acquire Clavecol Group, including CCI Farms, a grower and marketer of fresh flowers. With Dole's other recently acquired floral businesses, the company will have annual revenue of at least $200 million from fresh flowers. The company had revenue of $4.3 billion last year. Shares of Westlake Village-based Dole fell 44 cents to close at $46.56 on the NYSE.