Seasonal Tower Garden Growing Guide
One of the great things about growing in a Tower Garden is that your growing season doesn't necessarily have to end. But what you grow — and how you care for your garden — can change throughout the year.
Temperature, daylight, water use and even the crops that grow best can all change from one season to the next. And where you live matters just as much as the date on the calendar.
Use this guide to explore seasonal growing ideas, choose crops for your current conditions and find more detailed Tower Garden growing resources.
🌡️ Grow for your conditions, not just the calendar. January in South Florida looks very different from January in Michigan. Your actual daytime and nighttime temperatures, available light and growing location are more useful than the name of the season alone.
🌱 Growing in Spring
Spring can mean very different things depending on your climate. For growers in colder areas, it's the beginning of the outdoor growing season. In warmer climates, spring may already be bringing temperatures that affect cool-season crops.
It's a good time to think about what you want your Tower to look like several weeks from now — not just what fits into it today.
Good Spring Choices
Depending on your temperatures, spring can be a great time for a mixture of leafy greens, herbs and fruiting crops.
- Lettuce and leafy greens
- Basil and other herbs
- Tomatoes
- Peppers
- Cucumbers
- Beans and peas
As temperatures rise, cool-season crops may begin to give way to plants that are happier in warmer conditions.
What to Watch in Spring
- Changing daytime and nighttime temperatures
- Increasing water use as weather warms
- Rapid plant growth
- Increasing pest activity
- Support for growing tomatoes, cucumbers and other large plants
- Pollination as fruiting crops begin flowering
Spring is also a good time to check your Tower, pump, reservoir and supports before plants become large.
☀️ Growing in Summer
Summer can be incredibly productive, but extreme heat changes how you manage an outdoor Tower Garden.
Plants can use water much faster, reservoirs can heat up and some crops simply aren't happy when daytime and nighttime temperatures remain high.
Choosing Summer Crops
Variety selection becomes especially important in hot weather. Look for plants that tolerate your actual summer conditions rather than assuming every variety of a crop will perform the same way.
Warm-season crops can include tomatoes, peppers, cucumbers, basil, eggplant, beans and squash, although even these plants have limits when temperatures become extreme.
Here in South Florida, for example, many tomatoes stop setting fruit once nighttime temperatures remain too warm. Heat-tolerant varieties such as Everglades tomatoes can behave very differently.
What to Watch in Summer
- Rapid reservoir water loss
- Warm reservoir temperatures
- Heat stress and wilting
- Strong afternoon sun
- Increased nutrient stress during extreme heat
- Pests and disease
During extreme summer heat, we may use half-strength or even quarter-strength nutrients depending on conditions and the plants we're growing.
☀️ Hot-climate grower? Summer isn't automatically the end of outdoor growing. Sometimes the answer is changing varieties, adjusting nutrient strength, keeping an eye on reservoir temperatures or using shade during the most intense part of the day.
🍂 Growing in Fall
For many Tower Garden growers, fall is one of the easiest and most enjoyable growing seasons of the year.
As summer heat eases, water use may slow and cool-season crops such as lettuce, arugula, kale, peas, broccoli, cauliflower and cabbage become easier to grow.
Farther north, though, fall also means shorter days, falling nighttime temperatures and eventually frost. Some growers may be starting their best outdoor season while others are getting ready to bring their Tower inside.
What Should You Grow in Fall?
Fall can be an excellent season for leafy greens, herbs, peas, strawberries and cool-season vegetables.
We've put the crop-selection information into its own guide so you can compare fall choices without turning every seasonal article into another crop list.
How Does Tower Care Change?
As temperatures and daylight change, you may notice changes in:
- Water use
- Plant growth
- Available sunlight
- Pest pressure
- Nutrient needs after extreme summer heat
- Cold and frost risk
❄️ Growing in Winter
Winter doesn't necessarily mean you have to stop growing. What it means for your Tower depends almost entirely on where you live and whether you're growing indoors or outside.
In warm climates, winter can provide some of the best outdoor growing conditions of the year. In colder climates, winter may mean moving indoors and growing beneath LED lights.
Outdoor Winter Growing
If your climate remains mild, winter can be an excellent time for lettuce, herbs, leafy greens, peas, broccoli, cauliflower, cabbage, strawberries and other cool-season crops.
Continue watching nighttime temperatures. A warm afternoon doesn't necessarily mean plants — or the Tower itself — are protected from an overnight freeze.
Indoor Winter Growing
Moving indoors gives growers in colder climates the opportunity to keep harvesting throughout winter.
Leafy greens and herbs are especially easy to manage beneath lights. Fruiting crops can also grow indoors, but plant size, pollination and light requirements become more important.
For Tower Garden LED lights, we generally recommend approximately 14–16 hours of light per day, followed by complete darkness overnight, with lights approximately 6–8 inches from the tops of the plants.
Your Location Changes Your Growing Season
One of the reasons generic planting calendars can be frustrating is that the same month can represent completely different growing conditions across the country.
A grower in Minnesota may be moving indoors at exactly the same time a grower in Florida is finally planting crops that couldn't tolerate summer heat.
Even within one state, growing seasons can vary considerably.
🌴 Growing a Tower Garden in Florida
Florida is a perfect example of why location matters. North, Central and South Florida have different temperature patterns, frost risks and planting windows.
Our Florida Fall & Winter Planting Guide breaks those differences down by region and includes crop ideas for September through December, plus ways Tower Garden growers can extend the season by protecting their plants during colder weather.
💡 The takeaway: Use the season as a starting point, then make your final crop decisions based on your actual temperatures, light and growing environment.
Not Sure What to Grow Right Now?
Once you know what your current growing conditions look like, the next step is choosing crops that fit them.
Our Hydroponic Crop Library lets you compare leafy greens, herbs, fruiting crops and other vegetables, including their temperature preferences, growing difficulty, pollination requirements and support needs.
🌱 Think of these two guides together: The Seasonal Growing Guide helps you decide when a crop makes sense. The Hydroponic Crop Library helps you decide what to grow and shows you how to grow it.
More Tower Garden Growing Guides
Whatever the season, the same growing fundamentals still matter. Use these guides when you need more help with the conditions inside your Tower.
🌱 Seeds & Seedlings
Learn about starting seeds, rockwool, germination and getting young plants ready for your Tower.
Seeds & Seedlings Guide →💧 Water
Learn about water quality, reservoir care, pH and the water your plants depend on.
Tower Garden Water Guide →🌿 Nutrients
Understand nutrient strength, Mineral Blend A & B and how growing conditions affect feeding.
Tower Garden Nutrients Guide →☀️ Light
Learn how much light plants need outdoors and when grow lights are needed indoors.
Tower Garden Light Guide →🐛 Pests & Diseases
Identify common Tower Garden pests and plant problems before they become bigger issues.
Pests & Diseases Guide →🥬 Crop Library
Choose what to grow and find detailed guides for individual hydroponic crops.
Hydroponic Crop Library →
