For most vegetables, a succession planting interval of two weeks keeps fresh harvests coming all season long. Sow a small batch, wait fourteen days, then sow the next batch in the same bed or a fresh row. This simple rhythm turns one big pile of produce into a steady trickle you can use.
Picture two gardeners with the same packet of lettuce seed. One sows the whole packet on a Saturday and gets a wall of lettuce that all bolts in the same week. The other drops a pinch of seed every two weeks. The second gardener eats fresh salad for two months while the first one is composting a glut.
Your succession planting interval shifts from crop to crop because of speed. A fast crop races to harvest. So you can replant every two weeks or even tighter, and your beds will not overlap in a messy way. A slow crop sits in the ground much longer, so it needs a wider gap. Sow a slow crop too often and three plantings all come ready at once. That defeats the whole point of staggering them.
Here is a quick crop-by-crop guide with the numbers that actually matter for timing.
Radishes are the speed champs here. West Virginia University notes some types mature in as little as 25 days. That is fast. A fresh sowing every 7 to 10 days keeps crisp roots on your plate with no pile-up. Most other quick crops like leaf lettuce, spinach, and arugula do best on the classic two-week schedule. Both WVU and the University of Georgia point to that gap for a steady supply of greens. It is the easiest rhythm to keep in your head, too.
Green beans sit a step slower. UF/IFAS puts bush beans at roughly 50 to 60 days to harvest, so a gap of 2 to 3 weeks between sowings works better than two. That extra week gives each planting room to finish before the next one floods in. Beans also tend to give a heavy first flush, so spacing them out spreads the load on your kitchen.
To set your own rhythm, start from a crop's days to maturity, the number printed right on the seed packet. A crop that matures fast can handle a short interval. A crop that takes two months wants a longer one. The goal is simple. You want the next batch ready about the time the last batch runs out, not three batches landing on the same weekend.
If you keep one rule in mind, make it two weeks. Use that as your safe default for greens, radishes, and beans. Then tighten it to a week for the fastest roots, or stretch it to three for slower beans and carrots. Mark a recurring reminder on your phone or wall calendar so a sowing date never slips past you. One missed week leaves a hole in your harvest a month later, and you cannot fix it after the fact. The whole system runs on small batches sown on time.
Weather shifts these numbers a little, so treat the chart as a starting point. In the cool, short days of early spring and late fall, growth slows down and you can stretch the gap a touch. In the warm middle of the season, crops sprint, and tightening the interval keeps the supply even. Watch your own beds for a few rounds and you will learn the real pace in your garden. For the full step-by-step on prepping that first batch and getting seeds in the ground, see the how-to-start question elsewhere in this guide.
Read the full article: Succession Planting: A Complete Guide
