German Giant Radish Heirloom Seeds
German Giant radishes grow round red roots with white flesh. Pick while crisp and tender.
Packet: 50 seeds
Planting at a glance
- Season: Cool season
- Start: Direct sow
- Seed depth: ¼ inch
- Germination: Usually 3–4 days in a moist seedbed around 55–75°F
- Final spacing: Thin small garden radishes to about 1–2 inches; rows 6–12 inches apart
- Light: Full sun
- Harvest planning: Small garden radishes commonly take 20–35 days from direct sowing; check by root size
When to plant
Plant during your local cool growing season. In colder regions, use spring or late-summer/fall sowings and allow enough growing time before hard freezes. South Florida outdoor window: October–March.
How to plant
- Prepare loose, well-drained soil or a clean seed-starting mix. Direct sow.
- Sow ¼ inch deep. Keep the seedbed evenly moist until seedlings emerge. Then water when the soil needs it, allowing excess water to drain.
- Thin or transplant to the listed final spacing. Give seedlings sufficient light and check moisture as roots establish.
How to harvest
Pull promptly at a useful size. Hot weather, water stress and waiting too long can make roots woody or overly sharp.
Aunt E’s tip: Sow a small row at a time and keep moisture even for a more useful harvest.
Growing notes and sources
Timing is a planning range, not a guaranteed harvest date. Temperature, moisture, variety and season affect the result. Count from the sowing or transplanting point stated above.
Grow with Aunt E
Seed light and growing light: Cover these seeds at the depth on this listing; they do not need surface light to germinate. After sprouting, the leaves need good growing light.
Read the beginner growing guide · Compare the types and varieties · Get the germination instructions
Seed badges at a glance
- H
- Heirloom
- ★
- Hybrid
- OG
- Organic seed
- CT
- Cool season
- WS
- Warm season
- FS
- Full sun
- P
- Container friendly
- SS
- Small space
- CC
- Cut and come again
- FH
- Frequent harvest
- LG
- Needs light to germinate
- SP
- Spicy / hot
More seed codes
- IN
- Start indoors
- SH
- Partial or afternoon shade
- ST
- Support or trellis helpful
- D
- Dwarf
- B
- Bush habit
- V
- Vining or climbing
- SV
- Shorter vines
- SF
- Small fruit
- LC
- Large container
- F
- Fast harvest
- FL
- Flowers
- PW
- Pollinator interest
- PL
- Check pollination needs
- MX
- Seed mix
- DR
- Deep root space
- WD
- Well-drained soil
- DL
- Daylength sensitive
- LS
- Long growing season
- TR
- Tree crop
CC means cut and come again; FH means frequent harvest. Follow the crop instructions for what to harvest and when. OG appears only for documented organic seed. Codes are shortcuts; product details explain growing needs.
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