Dan Freeman
Minister of Fire
I can see an issue with try to continuously start new plant in this setup as far as nutrient levels go. I’m hoping I can make a starting tub with 1/2 strength and keep them there long enough. My tower garden has a 25 gallon reservoir so I’m hoping I can set that up and use one reservoir for all the plants. Will keep you posted.
I had a 17-gallon reservoir for about 18 plants from seedlings to the pick-of-the-week. Once they start to grow, they use up a lot of water. I also learned not to start all the seeds at once. I did that the first time without thinking, and I was inundated with lettuce. After that, I would start 3-4 seeds per week and harvest 3-4 full heads per week. It was 6 weeks from planting to harvesting. I would move the pots along the rails as they grew since I spaced out the holes from closer together to further apart to accommodate different size plants.
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I never could get spinach to grow worth a darn. I have read it is hard to grow spinach hydroponically. The plant likes the water, but the seed doesn't. If I remember correctly, folks who had success with spinach started them in wet paper towel and transplanted them. Don't hold me to that, but I know they were hard to start from seed directly.
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