Raphanus sativus 'Watermelon'
Radish
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Radish (Raphanus sativus 'Watermelon') - Description
Heirloom. A beautiful and antique treasure from China, these large 3-3 1/2" round roots are creamy white outside with a full central burst of watermelon rose. Flesh is crispy and mild, with a sweet flavor perfect for salads, garnishes, or cooking.
Radish (Raphanus sativus 'Watermelon') - Growth
Radish is a cool-season annual and a fast-maturing crop. Cannot tolerate too much heat. Winter radishes grow more slowly than spring radishes.Stresses like heat, water, high-nitrogen, insufficient thinning, or rocks/debris in the soil, will negatively affect root development. Roots often won't grow, or will be deformed, woody, and hot in flavor.
Radish (Raphanus sativus 'Watermelon') - Planting
Plant seeds about 4-6 weeks before the last frost date in spring. Lengthen summer harvest by sowing seeds successively every 1-2 weeks in spring. For winter radishes, sow seeds in midsummer, 6 weeks before the first frost date in fall.Before planting, work in a 1-2" layer of compost into the soil. Make certain that the soil is free of rocks or debris that will prevent the radish from extending its roots. Sow seeds about 1/2" deep in the soil and space plants 1" apart in rows 10" apart.When they are 1" tall, thin the small-rooted spring radishes to 2" apart. Think the daikons and large rooted winter radishes to 3-4" apart. This thinning process is extremely important for proper root development.
Radish (Raphanus sativus 'Watermelon') - Pest
The best way to avoid radish diseases like club root is to rotate the crops every 5-7 years. Pests of the radish include flea beetles, aphids, and root maggots. Rid of aphids and flea beetles with insecticidal spray. Root maggots can be controlled by spreading diatomaceous earth around the radish bed.
Radish (Raphanus sativus 'Watermelon') - Interesting facts
Radishes are often planted with slower-growing crops, like eggplant and cabbage, in order to serve as a pest trap. Because they grow so fast, radishes attract insect pests, keeping these pests away from other crops. Gardeners find that sacrificing some of their radish crop is worth it, or you can also always spray insecticide on the radishes to kil most of the insects that collect.
Radish (Raphanus sativus 'Watermelon') - Soil and irrigation
Keep the soil moist at all times. Soil that is not consistently moist, alternating from wet to dry, will cause radish roots to crack.
