Indoor vertical garden: what can you really grow on multiple levels?

A vertical garden looks immediately generous: several levels, many spots, and the impression that you can grow a little bit of everything in very little floor space.

In practice, success depends less on the number of baskets than on how you distribute the crops. Tall plants, salads, strawberries, and herbs do not occupy the same volume and do not require exactly the same light.

A vertical system can become a real indoor garden, provided you think in three dimensions: height, width, and access to light.

Why choose an indoor vertical garden?

The main benefit is simple: use height rather than multiplying the number of trays on the floor or countertop.

In a kitchen, conservatory, or bright corner of the living room, a hydroponic tower can accommodate more plants without taking up the width of several classic planters. This is particularly interesting when you want to grow several lettuces, herbs, or strawberry plants in a limited space.

But a vertical system does not eliminate the constraints of cultivation. You must always monitor the water, hydroponic nutrients, light, root growth, and the space left between the plants.

Which plants are the easiest in a vertical garden?

Leafy greens and herbs are generally the easiest crops to start with.

You can notably consider:

• cut-and-come-again lettuces;
• small loose-leaf lettuces;
• arugula;
• certain mustards and young leaves;
• basil;
• parsley;
• mint;
• coriander;
• chives.

These plants are generally easier to manage than tall fruiting crops. They are harvested for their leaves, which avoids waiting for a long flowering and fruiting phase.

For first-time use, a mix of salads and herbs also allows you to understand how light is distributed around the tower.

How to distribute the plants between the top and bottom of the tower?

A simple rule is to look at the adult size and the amount of light received.

The largest plants can cast shade on those below. Therefore, avoid placing several large basil plants or very leafy crops in the same place if their leaves are likely to cover the lower levels.

On the top levels, you can place plants that appreciate high brightness or that will grow taller. Further down, favor compact lettuces or herbs capable of growing well with slightly less direct light.

This organization is not fixed: it depends on the orientation of your window and any additional lighting.

Does light reach all levels properly?

This is one of the most important points with a vertical tower.

When light comes mainly from a window, the side facing it receives more light. The lower levels or the back of the tower may be less exposed.

An occasional rotation of the setup, when its design and weight allow it, can help balance the exposure. In some cases, external horticultural lighting is preferable.

For lettuces and herbs in indoor hydroponics, additional light is often useful, especially in winter. Good light notably prevents long, weak stems and improves foliage density.

The Verdia Plus does not have integrated horticultural lighting. It must therefore be installed near a bright window or supplemented with suitable lighting when natural light is insufficient.

Can you grow strawberries on a hydroponic tower?

Yes, provided you give them enough light and keep the flowers accessible.

Strawberry plants remain relatively compact and their trailing growth adapts well to multi-level cultivation. However, they require more attention than a simple lettuce.

Indoors, pollination may require a helping hand. A small soft brush allows you to move pollen between the different parts of the flower when no insect takes care of it.

Place the strawberry plants so that you can easily reach the flowers and fruits. Avoid having them completely hidden behind a large salad.

What about cherry tomatoes or peppers?

They are possible, but they require more space, light, and monitoring.

A cherry tomato can become much larger than the small fruit suggests. For a vertical tower, choose a compact or dwarf variety instead and plan for suitable support if necessary.

Peppers can also work if you choose a relatively compact variety.

In both cases, we recommend avoiding filling half the tower with fruiting crops. One or two well-placed plants will be easier to manage than a very dense group that blocks light to the other levels.

To learn more about this point, consult our guide on compact varieties suitable for the indoor garden.

Can you use all 30 spots of a large system at the same time?

Technically, a system can offer many growing spots. This does not mean you have to fill them all with large adult plants.

With compact salads, herbs, and young leaves, it is possible to use a large part of the baskets. With strawberries, tomatoes, or large basil plants, it is better to keep more space.

The right number of plants therefore depends on the actual size of your crops.

This logic is particularly important with the Verdia Plus, which offers 30 spots spread over 6 levels. Its benefit is not to force 30 large plants to fit together, but to provide flexibility to organize crops of different sizes.

How to prevent plants from shading each other too much?

View the tower as a small canopy.

A spread-out lettuce, a branched basil, or a tall tomato can cast a significant shadow. Harvest mature leaves regularly and avoid letting a single plant visually occupy three levels.

You can also alternate compact plants and taller plants. For example:

• top level: compact basil or dwarf fruiting plant;
• intermediate levels: salads, parsley, mint;
• accessible levels: strawberries and frequently harvested herbs.

This is just an example. The orientation of your light remains the priority.

Does the tank need to be larger for a vertical tower?

The more plants you grow, the more water consumption can increase.

A large tank offers a good margin, but it does not make the setup self-sufficient. You must always check the water level and adjust the nutrient solution according to needs.

The Verdia Plus uses a 20-liter tank. Its 7 W pump can circulate up to 600 L/h through the different levels.

A smart plug allows you to program the pump's operation. This simplifies water circulation, but does not replace monitoring the plants and the tank.

Should you grow the same plants on the entire tower?

No. This is even one of the advantages of a large system: you can create several harvest zones.

You can dedicate part of the tower to lettuces, another to herbs, and a few spots to strawberries or a compact fruiting crop.

The point to monitor is general compatibility. All plants share the same nutrient solution and the same root temperature. Therefore, avoid mixing crops with extremely different needs if it forces you to make permanent compromises.

Our guide on plants to grow together in an indoor garden details this logic.

How to organize sowing for regular harvesting?

It is not necessary to fill all spots on the same day.

A vertical tower is very well suited for staggered sowing: start a few lettuces, then add new seeds one or two weeks later.

This way, you avoid harvesting twenty salads at the same time and you more easily keep leaves available all year round.

When a crop reaches the end of its cycle, remove its basket, clean out root residue, and restart a new germination sponge.

Which vegetables to avoid in an indoor tower?

Bulky root vegetables, large squashes, and very climbing plants are generally less practical in a compact vertical system.

The problem is not only the biological possibility of growing them. It is above all their compatibility with the baskets, the available volume, the necessary support, and the space around the tower.

Favor crops whose harvest is at the level of the leaves or accessible fruits around the structure.

Verdia Plus: in what case is this format relevant?

The Verdia Plus is especially interesting if you want to grow more plants without dedicating several meters of countertop to indoor gardening.

Its vertical format uses 6 levels and 30 spots on a base of about 35 × 35 cm, for a height of about 87 cm.

It is particularly suitable for a combination of salads, herbs, strawberries, and a few more ambitious crops.

However, you must anticipate its location: it does not include a horticultural lamp, so natural light or suitable external lighting is part of the project.

Seeds and A+B nutrients are not included. You remain free to choose your seeds, as well as compatible sponges and baskets.

To remember: vertical allows you to grow more, not to eliminate the rules of cultivation

An indoor vertical garden is an excellent way to use height when floor space is limited.

To obtain a balanced set, favor lettuces and herbs, add a few strawberries or compact fruiting plants, then leave enough light and space around each level.

Do not try to fill every basket at all costs. A well-organized tower, with suitable plants and staggered harvests, will be easier to maintain and more productive than an overloaded tower.