Vegetable SeedsHSC-ONI-041-PKT
Allium cepa
75Days to maturity

A seed worth growing

Red Marble Organic Onion Seed

Item #HSC-ONI-041-PKT

About this variety

An organic red cipollini onion.

Red Marble is a red cipollini with rich color that runs deep into the rings. Bulbs average 1 1/2–3" across by 3/4–1" deep.

Thin necks help it cure into a good hard storage onion. Best between about 38° and 55° latitude.

About 75 days from direct sowing. Open-pollinated, certified organic seed.

Specs

  • Packet: 1,000 seeds
  • Average 100,000 seeds per lb.

In stock — Packet

Current price $6.35

Know before you sow

Quick Facts

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

Growing times vary with weather, soil and local conditions.

Growing guide

From seed to harvest

Full sun, rich soil

Steady moisture and a pH of 6.2–6.8; keep weeds down.

Sow thickly

Sow in early spring in 2–4" bands, seeds about 1/2" apart and 1/4–1/2" deep. No thinning needed.

Latitude matters

Small onions stay smallest and earliest in the North; farther south they size up to small or medium bulbs.

Pull as needed

Harvest bunches any time; skins only form after two to three months.

Growing Information

Scientific name

Allium cepa

Site and soil

Like all onions, these need full sun, steady moisture and fertile soil with a pH of 6.2–6.8. Keep the bed weeded.

Days to maturity

Counted from direct sowing.

Where they grow

Small onions bulb earlier and stay smaller the farther north they are grown. Pearl and cipollini types are best at about 40° latitude and north; farther south, the same varieties make small to medium onions.

Sowing

Sow in early spring in bands 2–4" wide or in single rows 4" apart, with seeds about 1/2" apart, and cover 1/4–1/2" deep. No thinning is needed.

Seeding rate

At 96 seeds per foot in 4" bands 12" apart: about 5,000 seeds per 50 ft., 1 oz. per 80 ft. and roughly 34 lb. per acre.

Harvest

Pull bunches whenever you need them. A papery skin does not form until two to three months into the season, so young onions are quick to clean and prepare.

Seed size

Seed is not sized.

Packet

1,000 seeds.

Seeds per lb.

About 100,000 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.

Your seed wishlist

Saved on this device.

    Your wishlist is ready for something good to grow.