Answer: Although carrots can overwinter with enough mulch and/or snow, they need the full growing season (that is, the summer) to grow their roots. If planted in summer, they will mature small carrots in fall, but not full sized ones in your area. It is fine to tear the seed tape if it is longer than you want your row. You may be starting your tomatoes too early. It is generally recommended to start them 6-8 weeks before planting time. In your area, you probably don't want to plant them before late May, which would put your seed starting time around the mid to end March.
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