---
title: Top Tips for Winter Food Growing in a Greenhouse
description: A hobby greenhouse grower takes growing food to a whole new level in the winter and luckily, the “work” required to succeed has been trialed, studied and reported on since the 19th century.
---
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# Top Tips for Winter Food Growing in a Greenhouse
## A hobby greenhouse grower takes growing food to a whole new level in the winter and luckily, the “work” required to succeed has been trialed, studied and reported on since the 19th century.
- **Natural Day Length** **Matters: **Food grows best when natural day length is over 10 hours long. At less than ten hours a day, plant growth is slow or static, rather than fast and active.
- **Disease Management:** Disease is greatly reduced when winter crops are spaced wider than summer crops.
- **Airflow is Crucial: **Constant airflow through use of a fan and opening of vents on sunny winter days keeps plants healthier.
- **Harvesting Strategy:** Plants harvested one leaf at a time take up less space than plants harvested whole (think of harvesting a parsley leaf versus a whole head of lettuce).
- **Cold Tolerance Varies: ** Some winter crops are more cold tolerant than others. Spinach is hardier than kale and kale is hardier than arugula.
- **Sugar Concentration: **Sugar concentration makes leaves sweeter and more resistant to freezing, so winter crops are tastier compared to the same variety grown in summer.
- **Efficient Crop Maturity: **All suggested dates to maturity are just that, suggested dates. Starting crops in a nursery setting before planting in your greenhouse will give faster harvests and more efficient use of home greenhouse space.
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