Japanese Minowase Radish (Daikon) Seeds - (Raphanus sativus)

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Seed Count:
Approx 300 seeds per pack
Days to Maturity:
45-58 days
Days to Germination:
4-10 days
Plant Spacing:
Light Preference:
Full sun to partial shade
Soil Requirements::
Sandy loam
Heirloom, Non-Hybrid, Non-GMO seeds
  • Japanese Minowase (Daikon) Heirloom Radishes - (Raphanus sativus)
  • Japanese Minowase (Daikon) Heirloom Radishes - (Raphanus sativus)
  • Japanese Minowase (Daikon) Heirloom Radishes - (Raphanus sativus)
  • Sliced Japanese Minowase (Daikon) Heirloom Radish - (Raphanus sativus)
  • Japanese Minowase (Daikon) Heirloom Radish  Seeds - (Raphanus sativus)

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Japanese Minowase Radish/Daikon Radish

An early pure-white tender roots are 3 in. in diameter and to 1 or 2 ft. long. Sweet, white crispy flesh with a unique flavor. Fresh favorite in Chinatown markets. Sow in summer or fall.


Different radish varieties are now broadly distributed around the world, but there are almost no archeological records to help determine their early history and domestication.

Ethnobotanists have tentatively located the origin of Raphanus sativus in Southeast Asia, as this is the only region where truly wild forms have been discovered. India, China, and Central Asia appear to have been secondary centers of domestication.

Radishes enter the historical record in third century BC while Greek and Roman agriculturalists of the first century AD described details of small, large, round, long, mild, and sharp varieties. The radish was one of the first European crops introduced to the Americas by way of Mexico.


Did you know Daikon radishes are also known as “tillage radishes” and “forage radishes”? You should know this under-appreciated but hard-working vegetable better and use it more. 

The “tillage” part comes from its traditional use of planting in the late summer to early fall where it is allowed to grow full size, then dies back during the winter frosts and freezes. Its aggressive roots till and open up the soil, then adds lots of organic material as it decomposes. The “forage” portion is from small scale farmers planting Daikons in a pasture or field, letting them grow and feeding to chickens or turning the pigs out to root them up and forage for themselves – getting a deeper tilling done for little effort.

Here’s a little tip a long time onion grower gave me – plant Daikons in the fall where you want to grow onions next spring. Let them mature, die and decompose just like with using them as tillage radishes. Next spring, plant an onion seed or slip in each hollow left by the Daikons. The onions won’t spend extra energy in pushing the soil out to grow, and the extra organic matter acts as compost, feeding the onions. He said he will never sell those onions as they are too big and tasty!

Radishes are used in very different ways around the world. China and Japan prefers to pickle most of their radish crop in brine, like we pickle cucumbers. India grows the rat-tailed radish for its fleshy edible seed pods which reach a length of 8-12”, and in Egypt, one type of radish is grown for its top greens only.

Although we tend to eat only the root whole and raw, the radish offers cooking possibilities.

They sauté beautifully thinly sliced and briefly tossed in a pan of hot oil, then sprinkled with flake salt, giving them a surprisingly deep roasted turnip-like flavor. Or halve them, toss in oil and salt and spread them on the grill alongside carrots and scallions. The smoky heat caramelizes their surface while gently softening their center, bringing out distinct sweetness and subtle flavors that are memorable all on their own.

Slow-roasted radishes are delicious, but another tasty option is pan-braising, which mellows the spice and softens its texture, making it tender and moist, almost beet-like.

Companion Planting

Radishes are helpful companion plants for many garden crops, because their pungent odor deters destructive insect pests like aphids, cucumber beetles, tomato hornworms, squash bugs, and ants.

They are excellent planted as a trap crop on the edges to lure insect pests away from the main crop.

Cucumbers and radishes always seem to thrive when grown together, and radishes also grow well with carrots, catmint, chervil, chives, cilantro/coriander, dill, lettuce, nasturtiums, peas, pumpkins, and turnips.

However, they are antagonistic when growing close to Brussels sprouts, cabbage, cauliflower, grape, hyssop, spinach, and summer savory.

Growing Tip

Radishes are a favorite to sow as soon as the soil can be worked in spring, as they grow easily and rapidly in cool weather – often maturing in 3 weeks from seed.

They should be succession planted every 10 days to 2 weeks from early spring until early summer. For a fall crop start 6-8 weeks before your first expected frost date.

Moderately fertile soil is ideal, lightly amended with aged compost, as too much fertilizer results in heavy leafy growth and stunted roots.

Plant seeds for small radishes ½” deep, spaced 1-2” apart, in rows 6-8” apart. Larger radishes need more space, about 3-4” apart when planting. Taking a little time spacing seeds out when planting saves much more time spent thinning and possibly damaging young, fragile roots later on, and makes weeding simpler and faster. After planting, tamp seeds down lightly into the soil, and water lightly.

The key to crisp, mild radishes is steady soil moisture and regular weeding. Ideal soil moisture is when you can feel the moisture in the soil when you insert your index finger to the first joint, but is slightly dirty when pulled out, not muddy. Keeping young weeds out takes only a couple of minutes per row if done every day or every other day.

Harvest Tip

Harvest radishes as soon as they are mature, if you let them them go too long they will be tough and woody. Early morning harvests will give you the best flavor, while late afternoon harvests will taste a little washed out in comparison.

Experiment a little to see what flavor you like best with your radishes. They will be mildest when harvested at the size of a large marble, and will gain flavor and spiciness as they grow in size.

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