Purslane is one of the easiest “weed crops” you can grow on purpose, especially if you want a fast, summer leaf harvest with very little fuss. It likes warmth, sun, free-draining soil, and repeated picking, which makes it a very practical crop for small beds, borders, and succession sowings.
The best place for purslane is a warm, sunny spot with light, sandy, or otherwise free-draining soil. Full sun is ideal, though partial shade is acceptable in very hot areas. A south-facing bed is usually the best choice because purslane likes heat and performs well where the soil warms quickly.
This is not a crop for heavy, waterlogged ground. In wet or cold soil, seedlings can rot and growth slows down sharply. If your ground is clay-heavy, raised beds or containers are much better than planting directly into the soil.
Sow purslane after the last frost, once the weather is properly warm. In practice, that means late spring into summer, with some guides suggesting sowing from spring through late summer for repeated harvests. Purslane is sensitive to cold, so it should not go out too early.
For a UK garden, think June onward for direct sowing outdoors, or sow under cover in March and transplant later if you want an earlier start. Succession sowing every few weeks works very well because purslane grows quickly and can be harvested in about 6 to 8 weeks, sometimes sooner. That makes it feel a lot like a summer salad crop rather than a long-season vegetable.
Sow the tiny seeds shallowly, barely covered with compost or fine soil. Once seedlings are up, thin them to about 10 cm apart for compact leaf production, or 20 cm if you want larger spreading plants. If you are planting in rows, keep the row spacing around 10 to 20 cm depending on how intensively you want to grow it.
You can also transplant small seedlings if needed, but purslane is usually easiest direct sown. It does not need rich soil and is happy in moderate fertility, which is part of what makes it so efficient. Too much feeding can make it lush but less compact, so a modest, well-drained bed is enough.
Purslane is drought-tolerant, but occasional watering improves both yield and flavour. Once established, it can handle dry spells well, though extreme heat and dryness will slow it down. Keep the bed weeded early on, because young purslane seedlings do not like competition.
It is a very low-input crop overall. No heavy feeding is required, and in many situations the main job is simply keeping it from being smothered or waterlogged. If you want the cleanest, most productive patch, mulch lightly and harvest often.
You can start cutting purslane leaves in roughly 40 days, or about 6 to 8 weeks from sowing depending on temperature and growing conditions. Pick young leaves and stems regularly to encourage regrowth. The plant is especially good as a cut-and-come-again salad green.
For best flavour, harvest in the early morning when the leaves are crisp and tangy. Older stems can be cooked in soups, stews, or stir-fries if they become too substantial for raw use. If you keep sowing and cutting through the summer, you can get a long, steady supply.
A simple farm-style system would be this: wait until the weather is warm, sow directly in a sunny, free-draining bed, thin to 10 cm spacing, water only when needed, and harvest repeatedly from early summer onward. In hot weather, a little irrigation helps, but avoid waterlogging at all costs. If you want a continuous crop, sow a new row every 2 to 3 weeks through the main season.
That makes purslane one of the most efficient edible weeds to farm deliberately. It is fast, resilient in the right conditions, and easy to fit between slower-growing crops. In a low-input market garden, it can be a surprisingly useful summer green.