All About Radishes and How to Grow Them

Planting Radishes

Direct Sowing

Radishes are best planted directly in the garden, as they have a quick growth cycle and do not transplant well. Follow these steps for successful planting:

Prepare the Soil: Loosen the soil to a depth of at least 12 inches, removing rocks and debris. Mix in compost to improve soil fertility.
Make Rows: Create rows spaced 12-18 inches apart.
Sow Seeds: Plant radish seeds about 1/2 inch deep and 1-2 inches apart, depending on the variety. You can sow seeds closer together if you plan to thin them shortly after they germinate.
Water: After planting, water the area gently to ensure good seed-to-soil contact.

Succession Planting

For a continuous harvest, consider succession planting. Sow radish seeds every 2-3 weeks throughout the growing season to ensure a steady supply.

Pest Management

While radishes are generally easy to grow, they can be susceptible to certain pests. Here are some common pests and their management strategies:

Flea Beetles: Small beetles that can create holes in the leaves. Use floating row covers to protect young plants or apply diatomaceous earth around the plants.
Rhubarb Curculio: This beetle can damage radish roots. Handpick them and reduce debris in the garden that can harbor pests.
Cabbage Worms: These caterpillars can damage foliage. Handpick and destroy them, or use an organic insect soap for control.

Regular inspection of your plants for signs of pests and diseases will help catch problems early.

Harvesting Radishes

Radishes grow quickly, usually maturing within 3 to 6 weeks after planting, depending on the variety. Here’s how to determine when to harvest:

Size: Pull radishes when they reach about the size of a quarter. If they are left in the ground too long, they can become woody and bitter.
Tops: Check the tops of the radishes; they will start to push through the soil when ready to harvest.
Timing: Harvest in the morning or evening when it’s cooler to preserve crispness.

To harvest, gently grasp the leaves and pull the radish straight out of the soil. Brush off any excess soil and avoid breaking the root.