Variety field guide
What to expect from Hailstone
Hailstone is an annual radish selection grown for fast roots, greens, succession planting, storage types, and seed saving.
Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record
Introducing the crisp and refreshing flavor of Hailstone Radish Seeds. These radishes are celebrated for their unique round shape and bright, white skin that resembles a hailstone, making them a standout addition to any vegetable garden. Hailstone radishes thrive in cool weather and are best planted in early spring or fall.
About Hailstone
Hailstone is an annual selection of radish, with a rosette habit and an expected height or spread of 7–12 in. It is best suited to fast roots, greens, succession planting, storage types, and seed saving. Notable traits include harvest roots before pithiness and use tender greens where appropriate; crisp and mild when young, becoming stronger with age or stress.
Treat Hailstone as a named seed line with its own observations, not as a generic stand-in for the entire radish crop.
History and provenance
These root crops were selected in Eurasian farming traditions for rapid growth, root form, storage, greens, and cold-season use. Small salad radishes, long daikon types, turnips, and rutabagas differ in species or crop group and should not share one generic maturity or harvest description. Hailstone Radish, the pristine white gem of the garden, emerges from the rich and diverse soil of Europe, where it has been cultivated for centuries. Its name, Hailstone, evokes the crisp, clean appearance and refreshing bite of this radish variety, reminiscent of icy pellets that fall from the sky. The pure white skin and spherical shape give it a striking resemblance to a hailstone, while its mild flavor offers a subtle peppery note that invigorates the palate.Historically, radishes have been a staple in European diets since ancient times, valued not only for their culinary versatility but also for their health benefits. Hailstone Radishes, with their tender flesh and delicate taste, were often used in salads, pickles, and as garnishes, adding a refreshing crunch to meals. During spring festivals, these radishes were often featured in celebratory dishes, representing the new life and growth of the season.
Growing facts
| Scientific name | Raphanus sativus L. |
|---|---|
| Life cycle | Annual |
| Maturity | 20-29 Days |
| Germination | 3-7 Days at 45–60 °F |
| Seed depth | 1/2 in |
| Plant height / spread | 7–12 in |
| Growth habit | Rosette |
| Spacing | 2 in between plants; 12 in between rows |
| Sunlight | Full sun |
| Soil | Sandy loam; pH 6.0–6.5 |
| Water | Moderate |
| Support | No-Support |
Starting Hailstone from seed
Sow 1/2 in deep and keep the seed zone evenly moist. Expect emergence in 3-7 Days when the seed-zone temperature is near 45–60 °F. Germination preparation: Direct sow into a prepared, weed-free seedbed; avoid disturbing developing roots or dense stands. Light requirement: Cover evenly to 1/2 in. Soaking: None required. Stratification: None required. Scarification: None required.
Planting and care
Plant during spring/Fall and provide full sun. Space plants 2 in apart with 12 in between rows. Use sandy loam with a pH near 6.0–6.5, and follow a moderate watering plan. Support requirement: No-Support. Frost response: Hardy. Good container fit with drainage, even moisture, and the listed spacing
Harvest and use
Approximately 20-29 Days, from direct sowing to market-size roots. Weather, soil temperature, and planting method can shift the actual harvest date. Harvest: Harvest roots before pithiness and use tender greens where appropriate. Uses: Fast roots, greens, succession planting, storage types, and seed saving. Flavor: crisp and mild when young, becoming stronger with age or stress. Seed saving: Insect-pollinated radish. Best uses include fast roots, greens, succession planting, storage types, and seed saving. Flavor and eating quality: crisp and mild when young, becoming stronger with age or stress.
Saving seed
Select several healthy, true-to-type Hailstone plants that match the expected rosette habit and overall plant form. Avoid saving seed only from the earliest or largest individual unless that is your deliberate selection goal. Pollination system: Insect-pollinated radish. Radish cultivars can cross through insect-carried pollen. Separate compatible varieties that may flower together, or use cages, barriers, hand pollination, or another documented control appropriate to the crop. Allow selected plants to pass the eating stage and reach full botanical seed maturity. Harvest only when seed heads, pods, or fruits have matured enough for sound seed development. Clean the seed carefully, dry it thoroughly away from direct heat, label the lot with variety and year, and store it cool, dark, and dry. Test germination before an important planting or distribution season.
Common problems
Common concerns: Flea beetles, imported cabbageworm, cabbage loopers, aphids, slugs, root maggots, and clubroot risk where the pathogen is present. Management: Use rotation, insect netting before pests arrive, regular leaf inspection, sanitation, and well-drained soil. Do not plant the same brassica family repeatedly in one bed. Diagnosis note: Similar symptoms can have different causes. Compare plants of the same age, record weather and irrigation, and use local Extension or diagnostic support before applying a control.
Frequently asked questions
Frequently Asked Questions - Hailstone
When is Hailstone ready? Use 20-29 Days. Approximately 20-29 Days, from direct sowing to market-size roots. Weather, soil temperature, and planting method can shift the actual harvest date.
How long does germination take? Expect 3-7 Days at about 45–60 °F. Cooler, hotter, crusted, saturated, or dry seedbeds can slow emergence.
How large does it grow? Expect about 7–12 in with a rosette habit. Space plants 2 in apart and rows 12 in apart. Support: No-Support.
Can it grow in a container? Good container fit with drainage, even moisture, and the listed spacing Use a container with drainage and enough volume to maintain the listed spacing and steady moisture.
Can I save seed? Insect-pollinated radish. Keep compatible varieties isolated and allow selected plants to reach full seed maturity.
