Where do I get good zucchini seed and which type sells?

Zucchini is grown from hybrid seed sold by private vegetable seed companies, usually bought through authorised dealers or reputable online agri seed sellers; always keep the bill, bag and tag. Green (dark cylindrical) types are the volume seller for most kitchens, while yellow zucchini fetches a premium but has thinner demand, so grow yellow only against a confirmed buyer. Buy fresh hybrid seed each season rather than saving seed, since saved hybrid seed will not come true. Confirm a variety that has done well in your area with other growers or your KVK before buying in quantity.