Vegetable SeedsHSC-RAD-014-PKT
Black Nero Tondo radishes with white slices on a cutting board
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Black Nero Tondo radishes with white slices on a cutting board
Raphanus sativus
50Days to maturity

A seed worth growing

Nero Tondo Organic Radish Seed

Item #HSC-RAD-014-PKT

An organic Black Spanish radish.

Nero Tondo is a Black Spanish strain that is more uniform and less prone to bolting than the ordinary type. Round, black-skinned roots, harvested at 2–4", have crisp, spicy white flesh.

Sow from midspring, once the soil is 60°F (16°C) or warmer to prevent bolting, through fall. Medium to long storage.

About 50 days from sowing. Open-pollinated, certified organic seed.

Specs

  • Packet: 250 seeds
  • Average 56,700 seeds per lb.

In stock — Packet

$6.55

Know before you sow

Quick Facts

Seed size & germination
Seed size (10 mm scale) and germination soil temperature chart for radish

Growing times vary with weather, soil and local conditions.

Growing guide

From seed to harvest

Mind the season

Sow in the season given for each variety to avoid bolting.

Loosen deeply

Deep, loose soil or raised beds give straight, easy-to-dig roots.

Thin to 4–6"

Sow 10 seeds per foot, rows 18" apart, and thin.

Lift with care

Fork the roots out, trim tops to 2" and store at 32°F for 6–10 weeks.

Growing Information

Scientific name

Raphanus sativus

Growing conditions

Daikon, Korean and other specialty radishes need loose, well-drained soil at pH 5.8–6.8. Long-rooted types grow straighter and are easier to dig if you loosen the soil deeply, ideally in raised beds. Check the recommended sowing season in each variety description, since sowing at the wrong time can make plants bolt.

Days to maturity

Counted from direct sowing.

Direct sowing

Sow about 10 seeds per foot in rows 18" apart, then thin to one plant every 4–6".

Seeding rate

In rows 18" apart: about 1 oz. per 260 ft., 3.9 oz. per 1,000 ft. and 7 lb. per acre.

Harvest

Loosen the soil alongside the roots with a fork or undercut them before lifting, so the long roots do not snap.

Storage

Trim the tops to 2" above the crown, wash and refrigerate. Roots keep 6–10 weeks at 32°F (0°C) and 95% relative humidity.

Seed

Seed for these types is not sized.

Packet

250 seeds.

Seeds per lb.

About 56,700 on average.

Satisfaction Guarantee

We want every packet you buy from Hensley’s Seed Co. to grow well for you.

If anything you order from us doesn’t meet your expectations, just let us know and we’ll replace it or refund what you paid.

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