Choose an edible container by what you will harvest
Work backwards from meals, space and care rather than seed packets.
Begin with the food you regularly prepare. If herbs appear in most meals, a modest herb container may be more useful than a vegetable you rarely eat. If you want a larger crop, check its mature size and container requirements first. RHS guidance says many vegetables can grow in containers when the container is suitable; that is not the same as every vegetable fitting every small pot.
Write a one-line purpose for each container: “leaves for sandwiches,” “herbs for cooking,” or “one crop to learn about.” Then check the plant’s light, growing-season and support requirements. Do this before buying seeds. On a small balcony, unused growing equipment can take up as much space as the plants themselves.
RHS advice for container vegetables stresses a consistent water supply while avoiding prolonged waterlogging. Decide how you will reach and water the container once the plant has grown. A pot that is accessible at planting time may become awkward behind mature foliage. Keep access to doors and essential building features clear.
For your first season, record sowing or planting date, container dimensions and your actual harvest. Use a simple handful or meal count if weighing crops feels unnecessary. At the end of the season, ask whether the result justified the space and attention. Expanding a crop you enjoyed is more useful than accumulating an ambitious collection you struggle to maintain.
Sources & further reading
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