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Direct Sow vs Transplant

Which vegetables should you start indoors and which should go directly into the garden? A complete guide with a crop-by-crop breakdown.

Published November 15, 2025

The Core Rule

The decision of whether to transplant or direct sow comes down to one key question: Does this crop have a taproot that dislikes disturbance? Crops with taproots (carrots, beets, parsnips, turnips) should always be direct sown — transplanting damages the root and stunts the plant permanently. Crops that are fibrous-rooted (tomatoes, peppers, broccoli) handle transplanting well and benefit from the head start.

🏠 Always Transplant

Start indoors 6–10 weeks before last frost:

  • Tomato (7 wks)
  • Pepper (9 wks)
  • Eggplant (9 wks)
  • Onion (10 wks)
  • Leek (12 wks)
  • Celery (10 wks)
  • Broccoli (7 wks)
  • Cabbage (7 wks)

🌾 Always Direct Sow

Sow seeds directly where they'll grow:

  • Carrot
  • Radish
  • Beet
  • Parsnip
  • Turnip
  • Bush Bean / Pole Bean
  • Sweet Corn
  • Pea
  • Dill
  • Fennel

The In-Between Crops

Some crops can be transplanted OR direct sown. In short-season zones (3–5), it's better to transplant to extend the season. In long-season zones (7–11), direct sowing is often fine.

CropShort Season (3–5)Long Season (6–11)
LettuceTransplant (4–5 wks)Direct sow outdoors
CucumberTransplant (3 wks)Can direct sow
SquashTransplant (3 wks)Can direct sow
Swiss ChardTransplant (4 wks)Direct sow
SpinachDirect sow ASAPDirect sow
MelonTransplant (4 wks)Direct sow in warm soil

FAQs

Is it better to direct sow or transplant tomatoes?
Always transplant tomatoes. They need 7 weeks of indoor growth before last frost, and direct sowing outdoors would not give them enough time to produce fruit before cold weather arrives, especially in zones 3–7.
Why can't you transplant carrots?
Carrots develop a single taproot that grows straight down. Any disturbance to this root during transplanting causes it to fork, twist, or grow deformed. Carrot seeds must be sown directly into the final growing location.
Can you direct sow peppers?
Theoretically yes in Zone 9–11, but it is not practical in most of the US. Peppers need 9 weeks of indoor growth before transplanting — direct sowing would give them far too short a season to produce fruit.