Many seeds require a warmer soil temperature for germination than the seedling needs to grow after germination. This ensures that the seeds germinate when the weather is warm enough for the plants to survive.
| Frost on my lettuce seedlings. |
- They want to harvest as soon as possible, whether for market stalls or just bragging rights.
- Their growing season is too short for this plant.
- By the time the soil is warm enough, the remaining growing season is too short to get any harvest.
- Their soil never warms up enough to germinate the seeds, but transplants will grow.
- Their area for starting seeds indoors is too cool for germinating.
- They need to get the plants germinated and seedlings established before hot weather arrives.
- They want to get their garden work done before hot weather arrives.
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