When to start tomato plants from seeds - Knowledgebase Question

scranton, PA
Question by icutie44
May 26, 2007
When is the best time to start tomatoes from seeds in the house and what type of evironment do they need? i have been unsuccessfull with my tomatoes this year they started out wonderfull then refused to grow anymore what did i do wrong?
I started them in early march with fresh potting soil and watered them when dry


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Answer from NGA
May 26, 2007

0

How frustrating! Based on your description I am not certain what happened. In general you would start them about eight weeks before you expect to plant them in the garden. Provide bright light such as two ordinary fluorescent bulbs in a "shop style" hood with the bulbs just a few inches above the foliage; run the lights about 16 hours a day. (A window sill is not bright enough.)

Use a good quality soilless potting mix formulated for container plants. Water as needed to keep the soil damp like a wrung out sponge, not sopping wet and not dried out so they wilt. Fertilize weekly with a water soluble fertilizer such as 10-10-10 plus minors at the weaker strength listed on the label.

Thin the seedlings and/or transplant to one per cell or pot as soon as you can tell which ones are the most vigorous; this prevents them from becoming crowded and stunting each other. You may need to repot them into larger individual containers as they grow, do so before the roots become crowded.

Grow them at a cool room temperature, 65 degrees or so. If they are too cold, they may slow down. I hope this helps you trouble shoot.

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