How to Raise Tomatoes in a Greenhouse for Maximum Yield

Overview

Fresh greenhouse tomatoes are sweeter and juicier than store-bought. Rich in lycopene (cancer-preventive). Need 52–90 frost-free days to mature. Can be sown outdoors in long-season areas. Containers and greenhouses work well—containers save space, yield heavily with care. Start in greenhouse 6–10 weeks before last frost.

Greenhouse Growing Steps

Step 1: Prepare Containers

Fill large containers with rich potting soil mixed with several handfuls of well-rotted compost.

Step 2: Sow Seeds

Plant at package-recommended depth. Cover lightly. Water frequently during germination—keep soil moist.

Step 3: Control Temperature

Maintain 50–80°F while growing.

Step 4: Optimize Light

Place young plants on south side for best light. Rotate containers occasionally for uniform light.

Step 5: Fertilize at Bloom

Start feeding every two weeks after blooming begins. Best: weak compost tea or fish emulsion.

Step 6: Hand Pollinate

Every 3–4 days during bloom, touch center of each blossom with finger or cotton swab. Bees are rare in greenhouses—you replace them.

Step 7: Harvest Promptly

Pick when red. This stimulates more production.