Growing Tasty Tomatoes in the Tower Garden
Tomatoes are one of the most rewarding fruiting crops to grow in a Tower Garden. With plenty of light, regular pruning, adequate water and the right support, tomato plants can produce an impressive harvest without a traditional garden bed.
Whether you're growing cherry tomatoes, compact dwarf varieties or full-size vining tomatoes, this guide covers the basics of growing healthy, productive tomatoes in a Tower Garden.
Jump to a Section
From sunlight and watering to pruning and pests, here's what your Tower Garden tomatoes need.
How Much Sunlight Do Tower Garden Tomatoes Need?
Tomatoes are high-light plants. Outdoors, aim for approximately 8 or more hours of direct sunlight each day whenever possible. Without enough light, tomato plants may grow but struggle to flower, set fruit and ripen tomatoes successfully.
When choosing a location for your Tower Garden, pay attention to how the sun moves across the space throughout the day. A location that appears sunny in the morning may become shaded for much of the afternoon.
Light and Heat Aren't the Same Thing
Tomatoes love light, but extreme heat can interfere with flowering and fruit set. Here in Florida, summer heat — particularly warm nighttime temperatures — can make tomato production more difficult even when plants are receiving plenty of sunlight.
Can You Grow Tomatoes Indoors in a Tower Garden?
Yes. Tomatoes can be grown indoors in a Tower Garden, but they need strong grow lights, enough room for the mature plant and some help with pollination.
Compact and dwarf varieties are generally easier to manage indoors because they stay smaller and fit more easily beneath grow lights. Large indeterminate tomatoes can also be grown indoors, but they require considerably more space, pruning and support.
Growing Indoors?
We have a separate guide devoted entirely to indoor tomatoes, including the best varieties, grow lights, pruning, pollination, airflow and space requirements.
How Much Water Do Tower Garden Tomatoes Need?
Mature tomato plants can use a lot of water, particularly when they're flowering and producing fruit. Hot weather can increase water use even further.
Rather than relying on a fixed weekly schedule, check your reservoir regularly. As tomato plants become larger, you'll usually find that the reservoir needs to be topped off more frequently.
- Don't allow the reservoir to run too low.
- Maintain a pH between approximately 5.5 and 6.5.
- Use the appropriate Tower Garden Mineral Blend concentration.
- Periodically drain and refill the reservoir rather than continually topping it off indefinitely.
For detailed feeding instructions, see our Tower Garden nutrient guide .
How Many Tomato Plants Can You Grow in a Tower Garden?
Tomato plants become much larger than lettuce, herbs and many other Tower Garden crops, so you don't need to fill every growing port with tomatoes.
If you're growing tomatoes alongside other crops, we generally recommend starting with around two tomato plants per Tower Garden. This leaves room for smaller plants while giving the tomatoes enough space to develop.
If you're dedicating the entire Tower Garden to tomatoes, you can grow more. We've grown as many as five tomato plants on one tower and harvested approximately 1–2 pounds of tomatoes per week during productive periods.
Variety Matters
Six compact dwarf tomatoes and six large indeterminate tomatoes are very different growing situations. Consider the mature size of the varieties you're planting rather than simply trying to fill every available growing port.
Pruning and Supporting Tower Garden Tomatoes
Tomato plants can produce a large amount of foliage. Regular pruning helps maintain airflow, keeps plants manageable and allows light to reach more of the leaves.
- Remove older yellowing or browning leaves as the plant matures.
- Thin heavily crowded growth when branches are blocking light and airflow.
- Prune indeterminate tomatoes as needed to control excessive growth.
- Avoid removing flowering trusses that will produce your future tomatoes.
Large tomato plants also need support as they grow and fruit. A Tower Garden support cage or another sturdy support system helps keep branches and heavy fruit from pulling the plant downward.
Common Tomato Pests in a Tower Garden
Tower Gardens eliminate soil-related growing problems, but tomato plants can still attract many of the same pests found in a traditional garden. Catching problems early makes them much easier to manage.
Aphids & Whiteflies
Check the undersides of leaves regularly for small insects and sticky residue. Treat infestations early before populations have time to spread throughout the plant.
Leafminers
Leafminer larvae create distinctive winding or squiggly trails inside tomato leaves. Remove heavily affected leaves and use sticky traps to help monitor and reduce adult populations.
Tomato Hornworms
Hornworms can remove a surprising amount of foliage very quickly. Inspect plants carefully if leaves or stems suddenly disappear. Bacillus thuringiensis (BT) can be used for caterpillar pests.
For more help identifying and treating problems, visit our Tower Garden Pests & Diseases Guide .
Growing Tomatoes Successfully in a Tower Garden
Tomatoes need more room, water and support than many Tower Garden crops, but the payoff can be substantial. Give them plenty of light, check the reservoir regularly, prune overcrowded growth and choose varieties that fit your available space.
From compact cherry tomatoes to large vining varieties, there's a tomato for almost every Tower Garden setup.
Ready to Grow Tomatoes?
Browse our live tomato seedlings and choose from compact dwarf, determinate and indeterminate varieties ready for your Tower Garden or other growing system.
Shop Tomato Seedlings
