If you’re not the world’s most patient gardener, don’t worry—you don’t have to wait months to enjoy your homegrown veg.
Some crops go from seed to plate in just a few weeks, making them perfect for small spaces, raised beds, or windowsill pots. Whether you’re new to growing or just want quicker results, these fast-growing vegetables are ideal for getting tasty, satisfying harvests in around 30 days or less. While you will need a bit of know-how, and they do require a bit of effort to grow, they’re well worth the effort.
1. Radishes
Radishes are probably the fastest-growing vegetable you can plant. Many varieties are ready to harvest in as little as 25 days, and they’re a perfect option for filling gaps in beds or pots. They grow best in cooler weather and loose soil, so early spring and autumn are ideal planting times. Choose varieties like ‘French Breakfast’ or ‘Cherry Belle’ for quick, peppery crunch.
2. Rocket (arugula)
Rocket is a zippy, peppery salad green that grows incredibly fast. You can start snipping baby leaves in around 21–25 days, making it perfect for impatient salad lovers. It’s happiest in cooler weather and prefers partial sun, especially in summer. Sow little and often to keep a steady supply, and water regularly to prevent it from bolting too early.
3. Spinach (baby leaves)
If you’re after baby spinach leaves for salads, you can harvest them in under a month. Just snip the outer leaves when they’re 3–4 inches long and let the rest continue growing. Spinach likes cool, moist conditions and doesn’t need deep soil, so it does well in containers. Try varieties like ‘Matador’ or ‘Baby’s Leaf’ for a speedy start to your growing season.
4. Lettuce (cut-and-come-again types)
Loose-leaf lettuces grow much faster than hearting varieties, and you can start harvesting outer leaves in about 28–30 days. The more you pick, the more it grows back. Choose mixes labelled ‘salad bowl’ or ‘cut and come again’ and grow them in troughs, window boxes or shallow trays. You’ll get fresh salad in no time with minimal effort.
5. Mustard greens
Mustard greens grow quickly and add a spicy kick to salads and stir-fries. Some varieties are ready for picking in 25–30 days, especially when grown for baby leaves. They thrive in cooler weather and are quite hardy, making them ideal for spring or autumn sowing. If you like a bit of heat in your greens, this one’s worth a grow.
6. Pak choi (baby stage)
While full-sized pak choi takes longer, baby pak choi can be harvested in around 30 days. It adds a crunchy, mild flavour to stir-fries and noodle dishes. Sow densely and thin out the seedlings, eating the thinnings as you go. Keep them well watered and give them plenty of sun, especially in cooler months when they thrive.
7. Spring onions
Spring onions (or scallions) don’t have to reach full size to be useful. When grown thickly, the young shoots can be harvested after just 25–30 days as tender mini onions. They grow well in containers or small spaces and are surprisingly hardy. Keep sowing every few weeks for a fresh, continuous supply of mild onion flavour.
8. Cress
If you want near-instant gratification, cress is ready in just 7–14 days. You can grow it on damp paper towels, in trays of soil, or even in a kitchen sponge. It doesn’t need full sun or a garden—just a windowsill. Snip it with scissors and toss it in salads or sandwiches for a peppery hit. Great for kids and impatient adults alike.
9. Turnip greens
Turnips take a while to bulk up, but their leafy green tops are edible and harvestable in under 30 days. They’re mild, tender, and packed with nutrients. Grow them for baby greens in spring or autumn. Just keep trimming the outer leaves as they appear, and the plant will keep producing for several weeks.
10. Beetroot leaves
Like turnips, beetroot greens are edible and surprisingly tasty. You can start picking the baby leaves in about 3–4 weeks while the roots continue growing. They have a mild, earthy flavour and work well in salads or sautéed. Just don’t pick too many from each plant—leave enough foliage for the root to develop properly.
11. Mizuna
Mizuna is a feathery, Japanese mustard green that grows quickly and adds a fresh, slightly spicy taste to salads. It’s ready to harvest in 21–30 days as baby leaves. It’s a good choice for cooler seasons and resists bolting better than rocket. Pick leaves as needed or harvest the whole plant if it starts to flower.
12. Baby kale
Full kale takes time, but baby kale leaves are soft, tasty, and ready in under a month. They’re less bitter than mature kale and ideal for salads or green smoothies. Grow in well-drained soil or containers, and keep them watered regularly. The more you pick, the more it grows—just like a proper cut-and-come-again crop.
13. Purslane
Purslane is a lesser-known but fast-growing leafy veg with a lemony flavour and lots of omega-3s. It thrives in warm conditions and can be picked in around 25–30 days. It’s often considered a weed, but it’s totally edible and easy to grow. Add the succulent leaves to salads or lightly sauté them for something different.