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Purple Plum

Scientific name Raphanus sativus L.

About this variety

Introducing the vibrant and striking Radish Seeds - Purple Plum, a delightful addition to any vegetable garden. This unique radish cultivar showcases a stunning purple exterior that leads to a crisp, white interior. As they mature, the roots maintain their vivid color and develop a mild, slightly sweet flavor with a hint of peppery spice, making them a...

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At a glance

The facts most gardeners need first

View the full variety record
250 minimum seeds per packet
Gardener experience

Easy

Germination difficulty

Easy

Germination time

3-7 Days at 45–60 °F seed-zone soil temperature

  • Germination
    3-7 Daysa seed-zone soil temperature of 45–60 °F
  • Maturity
    Approximately 20-29 Days, from direct sowing to market-size roots. Weather, soil temperature, and planting method can shift the actual harvest date.
  • Sun
    Full sun
  • Support and spacing
    No support needed · space 2 in · rows 12 in
  • Growth habit
    Rosette · Annual · 7–12 in tall
  • Best use
    Fast roots, greens, succession planting, storage types, and seed saving
Secure checkout Details
Generic
Triple-tested seed qualityRegular quality and germination checks support every packet.

We regularly test seed quality and germination as lots move through storage and packing. We stand behind the seed we send and want customers to contact us when a packet does not perform as reasonably expected.

1-year seed warrantyCoverage begins on the date of purchase.

When properly stored, planted, and cared for, we guarantee reasonable germination and true-to-type growth for one year from the date of purchase. Conditions outside our control—including extreme weather, pests, unsuitable storage, and gardener error—are excluded. Contact us when something is not right so we can review the situation and work toward a replacement, refund, or another fair resolution.

Non-GMO / BE seed policyWe do not buy or sell genetically engineered or bioengineered seed.

Every seed variety we sell is non-GMO.

USDA’s National Bioengineered Food Disclosure Standard defines bioengineered foods as containing detectable genetic material modified through in vitro recombinant DNA methods in ways not achievable through conventional breeding or found in nature.

  • Hybrid means parent lines were conventionally crossed; hybrid does not mean GMO.
  • Heirloom and open-pollinated describe how a variety is maintained and reproduced.
  • Organic certification is separate and is shown only when verified for the individual product.
Packed in Colerain, North CarolinaPrepared in our seed room for gardens across the country.

Seeds are packed and shipped from Colerain, North Carolina. Our packets use forestry-certified paper, and we use recyclable paper mailers where appropriate. AONSK is also a 1% for the Planet partner while continuing to reduce waste in packing and fulfillment.

Garden tools

Need a plan for your space?

Use the garden-fit planner and soil calculator to turn the recorded growing facts into a practical plan.

Open garden tools Uses this product’s recorded growing information. Local weather and garden conditions may vary.

Variety field guide

What to expect from Purple Plum

Purple Plum is an annual radish selection grown for fast roots, greens, succession planting, storage types, and seed saving.

Read the complete product descriptionTraits, flavor, garden use, variety notes, and the full catalog record

Introducing the vibrant and striking Radish Seeds - Purple Plum, a delightful addition to any vegetable garden. This unique radish cultivar showcases a stunning purple exterior that leads to a crisp, white interior. As they mature, the roots maintain their vivid color and develop a mild, slightly sweet flavor with a hint of peppery spice, making them a versatile ingredient in the kitchen.

About Purple Plum

Purple Plum is an annual selection of radish, with a rosette habit and an expected height or spread of 7–12 in. It is best suited to fast roots, greens, succession planting, storage types, and seed saving. Notable traits include purple coloring; harvest roots before pithiness and use tender greens where appropriate; crisp and mild when young, becoming stronger with age or stress.

Choose Purple Plum when the garden plan calls for fast roots, greens, succession planting, storage types, and seed saving and the listed rosette habit fits the available space.

History and provenance

These root crops were selected in Eurasian farming traditions for rapid growth, root form, storage, greens, and cold-season use. Small salad radishes, long daikon types, turnips, and rutabagas differ in species or crop group and should not share one generic maturity or harvest description. Purple Plum Radish, a vibrant jewel among root vegetables, emerges from the fertile soils of the Mediterranean, where its ancestors have thrived for centuries. The name \"Purple Plum\" captures the radish's striking hue and its sweet, crisp flesh, reminiscent of the juiciest plums. This radish variety is celebrated not only for its visual appeal but also for its subtle peppery flavor that enlivens the palate.Historically, radishes have been a staple in Mediterranean diets, valued for their refreshing crunch and nutritional benefits. The Purple Plum Radish, with its unique coloration, was often reserved for special occasions, adding a splash of color to festive platters and symbolizing abundance and prosperity.In traditional Mediterranean cuisine, the Purple Plum Radish is a versatile ingredient. It is sliced thinly into salads, providing a crisp contrast to softer greens, or pickled to enhance its flavor and extend its shelf life.

Growing facts

Scientific name Raphanus sativus L.
Life cycle Annual
Maturity 20-29 Days
Germination 3-7 Days at 45–60 °F
Seed depth 1/2 in
Plant height / spread 7–12 in
Growth habit Rosette
Spacing 2 in between plants; 12 in between rows
Sunlight Full sun
Soil Sandy loam; pH 6.0–6.5
Water Moderate
Support No-Support

Starting Purple Plum from seed

Sow 1/2 in deep and keep the seed zone evenly moist. Expect emergence in 3-7 Days when the seed-zone temperature is near 45–60 °F. Germination preparation: Direct sow into a prepared, weed-free seedbed; avoid disturbing developing roots or dense stands. Light requirement: Cover evenly to 1/2 in. Soaking: None required. Stratification: None required. Scarification: None required.

Planting and care

Plant during spring/Fall and provide full sun. Space plants 2 in apart with 12 in between rows. Use sandy loam with a pH near 6.0–6.5, and follow a moderate watering plan. Support requirement: No-Support. Frost response: Hardy. Good container fit with drainage, even moisture, and the listed spacing

Harvest and use

Approximately 20-29 Days, from direct sowing to market-size roots. Weather, soil temperature, and planting method can shift the actual harvest date. Harvest: Harvest roots before pithiness and use tender greens where appropriate. Uses: Fast roots, greens, succession planting, storage types, and seed saving. Flavor: crisp and mild when young, becoming stronger with age or stress. Seed saving: Insect-pollinated radish. Best uses include fast roots, greens, succession planting, storage types, and seed saving. Flavor and eating quality: crisp and mild when young, becoming stronger with age or stress.

Saving seed

Select several healthy, true-to-type Purple Plum plants that match the expected rosette habit and overall plant form. Avoid saving seed only from the earliest or largest individual unless that is your deliberate selection goal. Pollination system: Insect-pollinated radish. Radish cultivars can cross through insect-carried pollen. Separate compatible varieties that may flower together, or use cages, barriers, hand pollination, or another documented control appropriate to the crop. Allow selected plants to pass the eating stage and reach full botanical seed maturity. Harvest only when seed heads, pods, or fruits have matured enough for sound seed development. Clean the seed carefully, dry it thoroughly away from direct heat, label the lot with variety and year, and store it cool, dark, and dry. Test germination before an important planting or distribution season.

Common problems

Common concerns: Flea beetles, imported cabbageworm, cabbage loopers, aphids, slugs, root maggots, and clubroot risk where the pathogen is present. Management: Use rotation, insect netting before pests arrive, regular leaf inspection, sanitation, and well-drained soil. Do not plant the same brassica family repeatedly in one bed. Diagnosis note: Similar symptoms can have different causes. Compare plants of the same age, record weather and irrigation, and use local Extension or diagnostic support before applying a control.

Frequently asked questions

Frequently Asked Questions - Purple Plum

When is Purple Plum ready? Use 20-29 Days. Approximately 20-29 Days, from direct sowing to market-size roots. Weather, soil temperature, and planting method can shift the actual harvest date.

How long does germination take? Expect 3-7 Days at about 45–60 °F. Cooler, hotter, crusted, saturated, or dry seedbeds can slow emergence.

How large does it grow? Expect about 7–12 in with a rosette habit. Space plants 2 in apart and rows 12 in apart. Support: No-Support.

Can it grow in a container? Good container fit with drainage, even moisture, and the listed spacing Use a container with drainage and enough volume to maintain the listed spacing and steady moisture.

Can I save seed? Insect-pollinated radish. Keep compatible varieties isolated and allow selected plants to reach full seed maturity.

Garden toolsOpen the garden-fit planner, planting-window questions, or soil calculator only when useful

Uses this product’s recorded growing information. Local weather, soil, and garden conditions may vary.

Garden-fit planning for this variety

Will Purple Plum fit your garden?

Use your space, timing, light, soil, water, and growing preferences to make a more informed choice.

Questions for this garden seed
Seed-starting fit and patience
Recorded product profileBeginnerEasyRead why
Soil test, pH, drainage, and amendment calculator Have a laboratory soil report? Enter pH, nutrients, texture, bed size, and site observations here. Open soil tools
Recorded soil typeSandy loam
Recorded pH range6.0–6.5
Water needsModerate
LightFull sun

Use a current laboratory soil test

Soil-test interpreter

Compare your report with this product's listed pH target: 6.0–6.5.

This tool interprets values you enter; it does not replace laboratory or Cooperative Extension amendment rates. Soil test methods and nutrient recommendations vary by region.

Full growing record

Complete growing and seedkeeping record

Starting and plantingSeed preparation, sowing, germination, transplanting, spacing, and early establishment
Sow 1/2 in deep. Expect germination in 3-7 Days at 45–60 °F. Space plants 2 in apart and rows 12 in apart. Provide full sun, sandy loam near pH 6.0–6.5, and moderate watering. Support: No-Support. Purple Plum grows with a rosette habit to about 7–12 in. Plant during spring/Fall, provide full sun, and use sandy loam near pH 6.0–6.5. Space plants 2 in apart with 12 in between rows. Water requirement: Moderate. Support: No-Support.
Season-long growing guideWater, fertility, support, weather response, pollination, containers, and care through maturity
Sow 1/2 in deep. Expect germination in 3-7 Days at 45–60 °F. Space plants 2 in apart and rows 12 in apart. Provide full sun, sandy loam near pH 6.0–6.5, and moderate watering. Support: No-Support.
Harvest, storage, and usesRecognizing maturity, harvesting cleanly, handling and storage, kitchen uses, and garden roles

Harvest and storage

Harvest: Harvest: Harvest roots before pithiness and use tender greens where appropriate. Uses: Fast roots, greens, succession planting, storage types, and seed saving. Flavor: crisp and mild when young, becoming stronger with age or stress. Seed saving: Insect-pollinated radish. Uses: Fast roots, greens, succession planting, storage types, and seed saving. Flavor: crisp and mild when young, becoming stronger with age or stress. Seed saving: Insect-pollinated radish.

Uses and garden roles

Purple Plum is best for fast roots, greens, succession planting, storage types, and seed saving. Flavor and sensory character: crisp and mild when young, becoming stronger with age or stress. Harvest form or size: Harvest roots before pithiness and use tender greens where appropriate.
Seed savingSelection, pollination, isolation, full maturity, cleaning, drying, labeling, and storage
Select several healthy, true-to-type Purple Plum plants that match the expected rosette habit and overall plant form. Avoid saving seed only from the earliest or largest individual unless that is your deliberate selection goal. Pollination system: Insect-pollinated radish. Radish cultivars can cross through insect-carried pollen. Separate compatible varieties that may flower together, or use cages, barriers, hand pollination, or another documented control appropriate to the crop. Allow selected plants to pass the eating stage and reach full botanical seed maturity. Harvest only when seed heads, pods, or fruits have matured enough for sound seed development. Clean the seed carefully, dry it thoroughly away from direct heat, label the lot with variety and year, and store it cool, dark, and dry. Test germination before an important planting or distribution season.
Pests, diseases, and troubleshootingPrevention, diagnosis, environmental disorders, common damage, and first-response checks
Common concerns: Flea beetles, imported cabbageworm, cabbage loopers, aphids, slugs, root maggots, and clubroot risk where the pathogen is present. Management: Use rotation, insect netting before pests arrive, regular leaf inspection, sanitation, and well-drained soil. Do not plant the same brassica family repeatedly in one bed. Diagnosis note: Similar symptoms can have different causes. Compare plants of the same age, record weather and irrigation, and use local Extension or diagnostic support before applying a control.
Frequently asked questionsDecision-focused answers that supplement the detailed guides above
Frequently Asked Questions - Purple Plum

When is Purple Plum ready? Use 20-29 Days. Approximately 20-29 Days, from direct sowing to market-size roots. Weather, soil temperature, and planting method can shift the actual harvest date.

How long does germination take? Expect 3-7 Days at about 45–60 °F. Cooler, hotter, crusted, saturated, or dry seedbeds can slow emergence.

How large does it grow? Expect about 7–12 in with a rosette habit. Space plants 2 in apart and rows 12 in apart. Support: No-Support.

Can it grow in a container? Good container fit with drainage, even moisture, and the listed spacing Use a container with drainage and enough volume to maintain the listed spacing and steady moisture.

Can I save seed? Insect-pollinated radish. Keep compatible varieties isolated and allow selected plants to reach full seed maturity.
History and provenanceBotanical identity, cultivar history, regional or cultural context, uncertainty, and source records

Scientific name: Raphanus sativus L.

Common name: Radish

Cultivar or variety: Purple Plum

These root crops were selected in Eurasian farming traditions for rapid growth, root form, storage, greens, and cold-season use. Small salad radishes, long daikon types, turnips, and rutabagas differ in species or crop group and should not share one generic maturity or harvest description. Purple Plum Radish, a vibrant jewel among root vegetables, emerges from the fertile soils of the Mediterranean, where its ancestors have thrived for centuries. The name \"Purple Plum\" captures the radish's striking hue and its sweet, crisp flesh, reminiscent of the juiciest plums. This radish variety is celebrated not only for its visual appeal but also for its subtle peppery flavor that enlivens the palate.Historically, radishes have been a staple in Mediterranean diets, valued for their refreshing crunch and nutritional benefits. The Purple Plum Radish, with its unique coloration, was often reserved for special occasions, adding a splash of color to festive platters and symbolizing abundance and prosperity.In traditional Mediterranean cuisine, the Purple Plum Radish is a versatile ingredient. It is sliced thinly into salads, providing a crisp contrast to softer greens, or pickled to enhance its flavor and extend its shelf life.

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