If you’re after a low-effort, high-reward veggie patch, the real winners are the plants that keep on giving.
These are the vegetables you only need to plant once, yet they’ll keep producing for weeks, or even months, without needing constant replanting. Whether you’ve got a full allotment or a few pots out back, here are 14 crops that earn their keep all season long with just one planting.
1. Courgettes (zucchini)
Courgette plants are famously prolific. Once they start producing, you can expect a steady stream of fruits all summer, often more than you can keep up with. As long as you keep harvesting regularly, they’ll keep going until the first frost. They like a sunny spot and plenty of water, but otherwise they’re fairly fuss-free. If you forget to pick for a few days, you’ll come back to find a marrow-sized monster lurking under a leaf, so keep an eye out.
2. Runner beans
These tall climbers love to show off. Once they start flowering, you’ll get an almost constant supply of pods throughout summer, especially if you keep picking them while they’re tender. The more you harvest, the more they’ll produce. Just make sure you’ve got something sturdy for them to climb; a wigwam or trellis works well. And don’t let the pods get too big or stringy; smaller ones taste better and encourage new growth.
3. Kale
Kale might not be everyone’s favourite green, but when it comes to productivity, it’s hard to beat. Once established, it keeps sending out leaves well into autumn, and sometimes even into winter if it’s a milder year. Instead of harvesting the whole plant, just take a few leaves from the bottom as needed. It’ll keep growing from the centre, giving you a reliable source of greens for months on end.
4. Chard
Chard is a great cut-and-come-again crop, offering colourful leaves that bounce back quickly after picking. It handles heat better than spinach and doesn’t bolt as easily, making it perfect for long growing seasons. You can harvest the outer leaves as they mature and leave the centre to keep producing. Both the leaves and stalks are edible, so nothing goes to waste, and the vibrant colours look great in the garden too.
5. French beans
French beans are another pick-as-you-go crop. Once they get going, they’ll keep producing steadily through summer as long as you keep harvesting. Like runner beans, regular picking encourages more pods to grow. You can choose between dwarf and climbing varieties depending on your space. Either way, they’re quick to grow, relatively low maintenance, and packed with flavour when eaten fresh.
6. Tomatoes (indeterminate varieties)
Not all tomatoes are created equal. Indeterminate (or cordon) varieties keep growing and producing throughout the season, rather than setting all their fruit at once. With regular feeding and watering, they’ll go strong until the weather turns cold. They do need a bit of care, including support for the stems, pinching out side shoots, and protection from blight, but the reward is weeks of juicy harvests from each plant. Just make sure to harvest regularly and remove any damaged fruits.
7. Peppers
Once they start fruiting, pepper plants can keep delivering for weeks, especially in a greenhouse or sheltered sunny spot. Whether you’re growing sweet bell peppers or spicy chillies, you’ll usually get multiple flushes of fruit from each plant. They’re not fans of cold nights, so in the UK they do best in a greenhouse or warm patio. But once happy, they just keep flowering and setting fruit. Keep feeding with a high-potash fertiliser and they’ll reward you generously.
8. Cucumber (ridge or greenhouse)
Much like courgettes, cucumbers are generous producers once they get started. From a single plant, you can get a steady crop for much of summer, especially if you pick regularly and give them plenty of water. Ridge cucumbers grow well outdoors, while smooth-skinned greenhouse types need a bit more shelter. Either way, they’re fast-growing and surprisingly productive if kept fed and supported properly.
9. Lettuce (loose-leaf types)
Loose-leaf lettuces are perfect for the pick-as-you-go approach. You don’t harvest the whole head—instead, you snip off outer leaves and let the plant keep growing. Some types will keep producing for several weeks before slowing down. They’re best grown in cooler weather and can struggle in midsummer heat, but with a bit of shade or staggered sowing, you can keep a continuous supply going from one planting. Just keep watering and they’ll keep giving.
10. Spinach (true spinach or perpetual)
Spinach is another cut-and-come-again hero, especially if you grow perpetual spinach, which is actually a type of chard. With regular picking, you can keep the leaves coming over several months without replanting. Hot weather can cause bolting, but some varieties are more heat-tolerant than others. Keep it watered and shaded when needed, and it’ll stay productive far longer than you’d expect from a single sowing.
11. Aubergines
If you’ve got a warm summer or a greenhouse, aubergines can be surprisingly generous. Once they start producing, they’ll usually keep going with multiple fruits per plant across the season, though they need heat and consistent care to thrive. Make sure to support the plants as the fruits grow and keep feeding them with a tomato fertiliser to encourage flowering. They’re slow starters, but once they get going, they’ll reward your patience with a string of glossy fruits.
12. Spring onions (bunching types)
Bunching or perennial spring onions can be harvested gradually from a single planting. You can pull them whole or snip off the green tops and let them regrow, giving you multiple uses from the same plant base. They’re easy to grow in containers or beds and can slot into gaps around other veg. Some gardeners even divide and replant the clumps to keep them going year after year.
13. Okra (with heat and patience)
Okra might not be a typical UK crop, but with a greenhouse or a warm enough summer, it can actually do well, and once it gets going, it keeps producing regularly until the cold kicks in. Pick the pods young for best flavour and tenderness. It’s more commonly grown in tropical or Mediterranean climates, but UK gardeners with sunny patios or heated greenhouses have had success. It’s one to try if you like growing something a bit different and want ongoing results.
14. Herbs like basil and coriander
Herbs aren’t technically vegetables, but if you’re cooking with garden produce, they absolutely count. Basil, coriander, and parsley can all be treated as cut-and-come-again crops if you pinch off leaves regularly and don’t let them flower too soon. They’re fast growers and do well in containers or raised beds. Just be careful not to take too much at once. Snip little and often, and you’ll get fresh herbs all summer without needing to resow.