Approximately 50 seeds
Harvest the radishes in only 30-35 days.
Radishes are about the easiest seeds to grow and will reward you quickly for your efforts. In fall, sow all types of radishes at two-week intervals starting up to eight weeks before your first fall frost, and you can continue up until three weeks before your first frost date.
When preparing the planting bed, loosen the soil 6 to 10 inches deep, and mix in good compost. Smooth the soil and sow seeds a half inch deep and 1 inch apart, in rows spaced 12 inches apart. After the seedlings appear, thin radishes to 2-3 inches apart. Seeds typically sprout in three to seven days when sown in 60-degree soil.
When pulling radishes in warm weather, cool them right away by dropping them into a pail of cold water. Use a sharp knife or kitchen shears to remove the leaves, then store in the refrigerator for up to three weeks.
Harvest salad radishes once they are bigger than grapes. Radishes left in the ground too long develop a pithy texture and often may crack following heavy rains.
