Add colour and flavour to salads, stir frys and even bread with green and yellow zucchini. Both varieties are planted in mid-May and are ready for harvest by the end of June. Since zucchini grows very quickly, sometimes it is necessary to pick daily from the same plant. Its skin boasts a very soft membrane that can be damaged easily. Picking and packing are extremely important. Zucchini can be found at supermarkets, fruit stands and the Ontario Food Terminal. For more vibrant, savory meals, add a fresh Ontario zucchini.