Radish is usually the vegetable that turns a first-time gardener into a repeat one. Nothing else in a seed catalog goes from packet to plate in under a month. And that instant payoff is exactly why so many people go looking for radish seeds for sale in the first place — it's a low-risk way to see if a garden's actually going to work out. KVITER carries heirloom Raphanus sativus varieties, split between fast spring types and daikon variety, and every packet is non-GMO, open-pollinated seed that grows true again if you let one plant bolt and collect the seed. The rest of KVITER's vegetable seeds catalog picks up wherever the radish bed clears out.
Radish Variety Comparison
Cherry Belle — 900 seeds/packet; spring type; 22–25 days to maturity; best for fresh eating, beginners, and containers.
Watermelon Radish — 550 seeds/packet; fall/storage type; 50–60 days to maturity; best for salads, visual appeal, and fall harvest.
French Breakfast — 550 seeds/packet; spring type; 25–30 days to maturity; best for fresh eating with mild flavor.
Daikon Minowase — 550 seeds/packet; winter/storage type; 60–70 days to maturity; best for pickling, fermenting, and storage.
Champion — 550 seeds/packet; spring type; 28 days to maturity; best for a forgiving harvest window.
Spring vs. Winter Radish — What's the Difference
Spring radishes — Cherry Belle, French Breakfast, Champion — race to maturity in under a month, stay small, and don't keep once pulled. Eat them within a week or two or they go soft in the fridge drawer. Winter radishes work almost backward: two to three times the growing time, much bigger roots, and they'll actually sit in a root cellar or crisper drawer for months without much fuss. Timing flips too. Spring types go in the ground as soon as the soil can be worked. Winter types do better sown in mid-to-late summer, so they hit maturity as things cool off instead of baking through July heat.
Succession Planting
Few vegetables let a gardener get away with doing the same lazy thing over and over and still call it a strategy. Spring varieties mature in three to four weeks, so sowing a new short row every 10-14 days from early spring through early summer keeps fresh radishes coming without much planning. Once daytime temps sit consistently above 75°F, stop, as heat pushes the plant to bolt, and a bolted radish turns woody and hot instead of crisp. Pick succession sowing back up once fall temperatures drop, and that's the exact window to switch over to Daikon Minowase or Watermelon Radish.
How to Plant Radish Seeds
- Direct sow radish seeds ½ inch deep, about 1 inch apart, as soon as soil can be worked in spring.
- Thin spring varieties to 2 inches apart once true leaves show up; daikon types need 4-6 inches for the root to size up properly.
- Sow Daikon Minowase and Watermelon Radish in mid-to-late summer for fall harvest — sowing them in summer heat just invites bolting.
- Keep soil consistently moist. Inconsistent watering is the most common reason roots split or turn hollow inside.
- Harvest spring types the moment they hit full size. Waiting even a few extra days invites pithiness that can't be undone.
- Leave winter types in the ground longer than feels natural — cold soil actually sharpens their flavor and extends storage life.
Radish Planting Windows by USDA Hardiness Zone
In Zone 3–4, spring sowing happens in mid-May, with fall/winter radish sowing in late July to early August. Expect a spring harvest in early-to-mid June.
In Zone 5, spring sowing takes place in late April, with fall/winter sowing in early-to-mid August. Expect a spring harvest in late May.
In Zone 6, spring sowing falls in mid-April, with fall/winter sowing in mid-August. Expect a spring harvest in mid-May.
In Zone 7, spring sowing occurs in late March, with fall/winter sowing in late August. Expect a spring harvest in late April.
In Zone 8, spring sowing happens in late February, with fall/winter sowing in early September. Expect a spring harvest in late March.
In Zone 9, spring sowing takes place in late January, with fall/winter sowing in mid-September. Expect a spring harvest in late February.
In Zone 10, radishes can be sown year-round as long as you avoid summer heat, with a fall/winter sowing window from September through October. Harvest timing varies accordingly.
Radish forgives timing mistakes better than most crops — a light frost won't set it back the way it would tomatoes or peppers, so gardeners in most zones can push spring sowing a week or two earlier than the chart above without much risk.
Why Gardeners Choose KVITER Seed
KVITER doesn't treat radish seeds as filler stocked next to the tomatoes and forgotten about — this is seed picked for people who actually want a fast, dependable crop between bigger plantings, or a quick row tucked into a small raised bed. Every packet gets germination-tested before it's listed for sale, and every variety here is a genuine heirloom, open-pollinated line, grown without a single GMO input anywhere in the process.
- High germination rate on every packet, verified before listing
- 100% heirloom, open-pollinated varieties — save your own seed year after year
- Non-GMO seeds, never treated with synthetic coatings
- Detailed growing notes on every product page
- Free shipping on all orders over $49
Frequently Asked Questions
How long does it take to grow radishes from seed?
Spring varieties like Cherry Belle or Champion take just 22-28 days. Winter types like Daikon Minowase need closer to 60-70 days — a big enough gap that it's worth checking the packet before assuming radish is always a "three-week vegetable."
When's the best time to plant radish — spring or fall?
Depends what you're growing. Spring sowing suits the fast varieties meant to be eaten right away. Fall sowing suits daikon and other storage types, since cooler weather keeps the flavor mild and holds off bolting.
How many radish seeds go in one hole?
One seed per inch when direct sowing is really enough. Radishes germinate reliably, so seeding heavily just creates more thinning work later.
Can radishes be planted more than once per season?
Yes, and honestly that's the whole draw. Succession sowing every 10-14 days through spring keeps radishes coming until summer heat shuts the window.
Why do radishes bolt, and how can it be prevented?
Heat or stress triggers the plant to flower early instead of finishing the root — that's bolting. Keep soil evenly moist and shift to fall sowing once temps climb past 75°F to prevent most of it.
Can heirloom radish seeds be saved and replanted?
Yes. Every KVITER variety is open-pollinated, so seed collected from a plant left to flower and go to seed grows true the following season — no surprises, no drift.
