Sow White Icicle radish seeds from early spring to the middle of May, and plan to sow again in September for a fall harvest crop. The tops on this cylindrical, pure white radish are short at only 11cm (4 1/2″), while the roots keep their fine texture and eating quality up to 15cm (6″) long. White radishes are a little milder than the red skinned ones, with less of that sharp heat. Icicle Short Top is adapted for a wide range of soil conditions and geographical regions, it remains uniform and vigorous. Try planting this radish at a tighter spacing than usual. They perform well in containers, but use deep, freely draining pots.
Timing: Radishes can be grown all season but they’re easiest when sown just after the last frost date and again at the end of summer and into the fall. Optimal soil temperature: 18-24°C (65-75°F). Seeds should sprout in 5-7 days.
Starting: Sow seeds 5mm (¼”) deep, 25 seeds per 30cm (12″) in rows spaced 30-45cm (12-18″) apart, and thin to 6-12 plants per 30cm (12″).
Growing: Ideal pH: 6.0-6.8. Radishes are moderate to heavy feeders. Best in rich, loamy soil amended with composted manure. Add 1 cup of complete organic fertilizer for every 3m (10′) of row for background fertility. Lime beds the previous fall. The real secret to growing this little vegetable is speed. Sow a short row frequently, thin them quickly, keep them watered, eat them quickly, and sow some more.
Harvest: Harvest promptly when radishes are the size of large marbles. The leaves and developing seedpods are also tasty.
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