The first new radishes have been making their way into our salads over the last week — what a treat! First up is ‘Sparkler’, a tender, two-toned variety that reminds me of a flattened ‘French Breakfast.’ The later is long and elegant but only appropriate for the very deepest containers, while ‘Sparkler’ is short and squat, perfect for window boxes and smaller pots.
The trick to growing tender radishes in pots is to keep the soil moist, but not soggy. Dry soil turns out small, woody radishes. Deeper containers are easier to keep moist. If you are having trouble growing decent radishes, try supersizing your container and growing a smaller variety.
This year I am experimenting with a big wash basin that is about 8 1/2″ deep by 18″ wide. I made lots of holes in the bottom of the container with a big nail and a hammer before filling it with potting soil. I then planted the seeds in concentric circles within the container, spaced about 2 inches apart so the radishes would have room to grow. Approximately 20 or so radishes can grow in there at one time — I could have fit a few more had I not sown a patch of wild arugula in the center for the heck of it.
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