Radish
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Sowing indoors
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Sowing outdoors
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Harvest
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How do you sow 18-day radishes successfully under cover?
To grow 18-day radishes under cover, it's important to start by sowing the seeds in cups or wooden boxes filled with light, well-drained potting soil. Sow the seeds 1 to 2 cm deep and about 2 cm apart. Water lightly to keep the soil moist but avoid overwatering.
Place the cups or trays in a bright, warm place, such as a greenhouse or conservatory, to encourage germination. Radishes prefer temperatures between 15 and 20°C. You can sow the seeds in early spring for an early harvest. Make sure you monitor the growth of the seedlings and protect them from pests such as slugs and aphids.
Once the seedlings have developed a few leaves, you can transplant them into the ground or into larger containers. Choose a sunny spot with light, well-drained soil. Radishes grow quickly, so take care not to leave them in the ground for too long to prevent them becoming woody.
How to sow radishes outdoors in just 18 days?
How do I harvest 18-day-old radishes?
18 day old radish
The full growing guide for this plant is available to subscribers only. Become a Super'mate to access the following information:
- Exposure
- Frost Hardiness
- Cultivation Difficulty
- Sowing Depth
- Plant Spacing
- Row Spacing
- Germination Time
- Germination Temperature
- Lifecycle
- Adult Height
- Maintenance
- Water Requirements
- Soil Type
- Soil pH Preference
- Pest Sensitivity
- Disease Sensitivity
- Weed Sensitivity
- Pollination
- Propagation
- Seed Storage