1. Choose the right location for planting radishes. They prefer well-draining soil that has plenty of sun exposure during the day – six or more hours is ideal. Also be sure to provide adequate space between plants – ideally 3-4 inches – so they have room to grow properly.
2. Select a variety of radish seeds for planting depending on when you plan on harvesting them. Early varieties mature in about 20-30 days, while longer season varieties can take as long as 60 days. Pick out one or two types of each variety that suit your needs best.
3. When preparing the soil, it should be loose enough for easy root penetration yet still hold moisture well at the same time. Radishes do not like hard soils with rocks or clods of dirt in them because they need good drainage and air circulation around their roots. A sandy loam is ideal if available; otherwise work in organic matter such as compost or peat moss prior to planting.
4. When ready to plant, sprinkle seeds onto soil evenly, lightly covering them with soil before watering thoroughly. Keep an eye on seedlings regularly after germination as they tend to emerge quickly over the course of a few days or so; thin out overcrowded plants immediately so other young ones have a chance to mature and thrive too!
5. Radishes prefer cool temperatures and need consistent moisture for proper growth; keep up regular waterings and use mulch or straw around plants for insulation against heat stress during summer months if needed. Harvest radishes when firm, but no longer than 4 weeks after sowing the seeds; smaller ones are generally considered tastier than those allowed to become overly large! Enjoy!