And most herbs will grow perfectly well in a pot, as will plants that grow vertically, like pole beans.
The containers, potting mix and location of your plants are just as important to your success as the varieties you select.
Container-grown plants require more water and fertiliser than their in-ground counterparts, so select deep pots; their greater soil volume will retain moisture longer and reduce watering tasks.
Clay and terracotta absorb and evaporate water quickly, so metal, plastic, resin and glazed pottery containers are better choices. All containers should have drainage holes in the bottom to allow excess water to escape and help prevent fungal diseases and root rot.
Never use garden soil in containers; it’s too heavy and can harbour pests and diseases. Opt instead for a high-quality, organic, soil-less potting mix, and add an organic, granular fertiliser if the mixture doesn’t already contain one. After planting, top the soil surface with 1-2cm of mulch to reduce evaporation, keep soil temperature even and prevent weed seeds from taking hold.
When selecting a spot for containers, consider that most edibles require a minimum of 6 hours of sunlight daily. Greens, carrots, beans and beets can get by with less, so are good choices for partly shady sites.
Herbs should be planted in pots no smaller than 2 litres in size; dwarf cultivars of cabbage, cucumbers, lettuces and peas do best in 9-10 litre containers; and dwarf carrots, eggplants, peppers, squash and tomatoes require 20 litre containers that are at least 38-40cm wide. Plant watermelons in 36-45 litre pots.
Potatoes can be grown in 35 litrebaskets; add a plastic liner in which you’ve poked drainage holes, and top with a layer of pebbles before adding potting mix.
Apply a water-soluble fertiliser to vegetables once every week to 10 days throughout the season. Herbs typically don’t require additional fertiliser beyond that incorporated at planting time.
Check the soil for moisture daily by sticking your finger 5cm deep and watering when it feels dry near the roots. Less-frequent, deep waterings trump daily sprinkles. Apply water slowly until it drains from the bottom, and aim for moist, but not soggy, soil.
With the right plants and a little planning, you’ll find even a small space can reap a large harvest.