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Round Black Radish (Heirloom, 33 Days)

Heirloom 1824 in US, 1500’s in Europe. A fine variation on the black Spanish radish that has been around since the 1500’s. Large roots are 4” across with an attractive black skin while the flesh is a pure creamy white. Mildly pungent and can be used for a variety of cooked dishes as well as fresh with beer. Round Black even stores well in a root cellar. Grows best when sow in late summer/ fall, prefers to mature in cooler weather. 

300 seeds


Raphanus sativus

Germination: 5-7 days

Germination Temperature: Optimum soil temperatures 60-75ºF.

Seed Sowing Depth: 1/2" deep

Sowing Outdoors: Starting in early spring. Sow 1/2-1" apart ,thin to 1-2" apart, soon after the seedlings emerge.

How much does a packet plant: 18-24 foot single row

Harvest: 3-4 weeks after planting at 1” in diameter, pull them promptly as they rapidly decline, becoming tough and pithy

Tips: They need rapid growth for optimum results. Provided fertile soil and consistent moisture. For a continuous harvest make successive plantings every 7-10 days when weather is still cool. 

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Marlene M.
liberty, maine
black radishes

My hopes for an edible radish did not materialize. Probably I did not have the right soil or the wrong expectations. The plants only grew long roots.