Customer Service Hours
Mon-Fri 8-4 MST
Features
Family
Brassicaceae
Native
Unknown
Life Cycle
Annual
Plant Height
Short (Under 12")
Further Information
Plant Characteristics
Good for Containers
Growing Conditions
Frost Tolerant
About Purple Plum Radish Seeds
Raphanus sativus
Vibrant purple skin with a crisp, white interior that has a mild, sweet flavor
Planting Radish
Days to Maturity
25-30 days
Plant Spacing
1"
Light Required
Full Sun to Part Shade
Plant Height
Short (Under 12")
Planting Depth
1/2"
Coverage & Planting Details
| Coverage | This packet sows up to 23 feet. |
|---|---|
| Row Spacing | 12" |
| Seed Depth | 1/2" |
| Seed Spacing | 1" |
| Thinning | When 1" tall, thin to 3" apart |
| Germination | 5 ‒ 10 Days |
| Start Indoors | Not recommended; roots sensitive to disturbance. |
| Direct Sow | RECOMMENDED. 4 to 6 weeks before your average last frost date, and when soil temperature is above 40°F, ideally 65°‒85°F. Successive Sowings: Every 1 to 2 weeks until late spring. Sow again in late summer until 4 weeks before your average first fall frost date. |
| Special Sowing | Radish plants thrive in cool temperatures, but the seeds require fairly warm temperatures to germinate. To help warm the soil, you can place black plastic sheeting on the growing area 3 days before sowing. Sow the radish seeds under the sheeting, and after 4 days, check daily for seedlings. Remove plastic immediately after seedlings have emerged. |
| Special Care | Flea beetles leave small holes in the leaves, which can impact the formation of the radish root. If you live in an area where flea beetles are problematic, cover the seeded area with row covers until harvest. |
| Growing & Harvesting | Harvest when radish is no larger than 1" in diameter. If allowed to grow bigger, Purple Plum will get pithy and hot. |
Find Your Frost Date & Grow Zone
Average First Frost Date
October 19
Average Last Frost Date
May 19
Your Hardiness Zone is
5b
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Total 5 star reviews: 1 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
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Rating
Which best describes you as a gardener?
1 review
- Andrea G.Verified ReviewerRated 5 out of 5 stars7/27/26Yummy!
I got these for being in the greenhouse subscription and we planted them out the same day and we just harvest a few and my 2 year old loves them. If people come over and want to try something new I always suggest these radishes if available. We are going to start our next succession next week.
Which best describes you as a gardener? BeginnerBIBotanical Interests7/28/26Hey Andrea,
We're so happy to hear about your incredible experience with the Purple Plum Radish Seeds! There's nothing better than getting radishes that are so yummy your 2 year old can't get enough of them - that's the ultimate stamp of approval! We love that you're already recommending these to friends and family when they want to try something new. And how awesome that you're planning to start your next succession next week so you can keep enjoying these delicious radishes throughout the season! Thanks for sharing your Purple Plum Radish growing success with us and for being part of the greenhouse subscription! Keep on growing 🌻