yes they can
No but fertilizer and lots of water help radishes to grow.
I grow my radishes in the fall.
Sugar can stunt the growth of radishes or not allow them to grow at all. When sugar is added, the soil water itself will not be able to give the plant what it needs to grow. The roots that grow from the radishes are not adapted to absorb sugar.
dirt gravel because it has some nutrients in it and gravel does not.
Click on you farm and select radishes then use smurfberries to get them
Radishes will always grow best with water, however if you dilute milk or soda with water they can be used as well. +++ No doubt they will, but the plant is only interested in the water. Soda is nothing more than a solution of sugar, with perhaps flavourings, and carbon-dioxide in water anyway. Don't waste your money - use just water.
They grow from seeds.
nothing
magnets make the radishes grow larger. i noticed that the magnets also made the radishes produce more leaves.
No plants or flowers will grow in gravel , they need soil to grow.
Radishes grow very quickly so you should never let the soil dry out. Radishes require moist, cool soil. Depending on the weather in your area, usually a deep watering every 2-3 days keeps the soil moisture optimum.
you can grow marigolds in interesting things such as gravel, shreaded newspaper, water, soil and fertilizer mix, and sand