Radish is a cold weather / fall crop and is really easy to grow for beginners. Some varieties of radish can be harvested in 30 to 50 days. The edible portion is the root. The tender leaves are also edible. They grow well in containers also.
Start the seeds indoors or sow them directly about 1/2” depth when the temperature is around 60F(16C). The seeds will sprout in 3 to 5 days. They can be grown as spring/fall crop.
Radish likes nutrient rich soil and water for healthy plant. Most of the time the pests leave these plants alone. They can tolerate a mild frost. If grown in greenhouse or floating cover they can be grown through mild winter.
Once the bulbs show up above the soil its almost ready to harvest. Pull one plant to check the bulb before harvesting the rest. The bulb has nutty spicy flavor. Easiest way to use is slice it on the salads. Roasted radish with butter, salt and spices tastes yummy. These roots can also be pickled as well.
If you let your favorite variety to bolt(bloom) in summer you can harvest seeds for next season. Radish will readily cross pollinate with other varieties. There is a variety called Rat-tail Radish which is used specifically for the seed pods.
Here is the one of the radish harvest from my own garden.