Colder weather means full-strength nutrients (20ml per gallon of A and the same for B). I switch to full-strength when the temperature no longer reaches above 85 degrees. This applies whether the plants growing in your Tower are all mature or a combination of seedlings and mature plants.
Use half strength nutrients (10ml per gallon of A and the same for B) in the summer when the temperature is steadily reaching 90 degrees or anytime of the year when your Tower contains all new seedlings.
The graphic above provides an easy nutrient reference guide. Remember, nutrients should be added each time you add water to the reservoir. See page 3 of this document entitled Water for a handy way to measure the water in reservoir.
Wondering what types of produce can handle colder weather. This short, but very informative article from the seed company Botanical Interests does a great job of answering the question. I’m amazed at the variety of produce that can handle hard frost. I also didn’t realize a light frost makes leafy greens sweeter.
The answer is any plant that’s not a tree, bush, or root vegetable. That leaves lots of options! Yes, you can grow melons, pumpkins, squash, tomatoes, peppers, celery, cucumbers, eggplant, beans, peas, Swiss chard, kale, collard greens, lettuce, bok choy, broccoli, brussel sprouts, and kohlrabi – to name a few. This photo album of our Towers and produce grown via this easy gardening method shows the abundance it produces, Our Productive Tower Gardens.
This document on Seeds, Seedlings, and Planting includes a list that will give you lots more ideas.
Enjoy growing a large variety of nutrient-dense and tremendously tasty produce in your Tower!
Questions? Contact me at firstname.lastname@example.org.
It’s unseasonably cold across the country for this time of year and we’re no exception here in Florida. However, no matter where you live, you can keep our Towers growing in spite of the cold weather. Here’s how:
1) Keep your Reservoir Full: The water will stay warmer when the reservoir is full. It’s much easier for a volume of 20 gallons to maintain heat than it is for only 5 gallons.
2) Place your Tower in the Sunniest Location: If you have the option of moving your Tower to a sunnier location, do so. The days are shorter and the sun less intense in the winter months. Your produce will be happier with more sun.