Domakihub Build a Vertical Garden: Save Space and Add Green Beauty
A practical step-by-step guide for creating a thriving wall garden in any outdoor or indoor space.
Reviewed by Domakihub garden pros · 2026-06-23 · 5 min read
Vertical gardens turn a bare wall, fence, or balcony railing into a lush green feature without taking up a single square metre of floor space — a perfect solution for apartments, villa terraces, holiday rentals, and hotel courtyards across Greece. The video above from Gardening Australia walks through the hands-on construction; this article breaks the same process into five clear steps so you can plan materials, choose the right plants for the Greek climate, and keep your wall garden healthy long-term. Whether you want edible herbs near the kitchen or a decorative living wall that impresses guests, the approach is the same.
Why Vertical Gardens Work so Well in Greece
Space is the most obvious driver — balconies in Athens or Thessaloniki often measure just a few square metres, and even a modest holiday rental can feel crowded once outdoor furniture is in place. A vertical garden reclaims the one dimension that is almost always unused: height.
The Mediterranean climate adds a second advantage. Long, sunny summers and mild winters allow a wide range of plants to thrive outdoors year-round with minimal protection. Aromatic herbs like rosemary, thyme, oregano, and basil grow vigorously in wall planters, meaning a small vertical garden can double as a functional herb supply for a holiday kitchen or hotel restaurant.
Choosing the Right System for Your Wall
There are three main approaches: pocket panels (fabric or felt pouches stapled to a frame), modular plastic planter boxes that slot onto a mounting rail, and pallet or timber-frame builds where planters or mesh pots are fixed directly to reclaimed wood. Pocket panels are the most flexible and cheapest to start with; modular systems are neater and easier to irrigate automatically; timber-frame builds suit rustic or traditional aesthetics common in Greek island properties.
Before choosing, assess your wall: concrete and rendered masonry take rawl plugs easily and can bear significant weight, while timber or lightweight partitions need load calculations. Also note whether the wall faces south (full Greek summer sun — choose drought-tolerant plants and use drip irrigation) or north (shade-tolerant ferns, ivy, and philodendrons thrive here).
How to Build Your Vertical Garden in 5 Steps
- 1
Plan your layout and load
Measure the wall area and sketch a simple grid showing how many planter pockets or modules you need. Calculate the total weight when fully planted and watered — a rule of thumb is 25-40 kg per square metre for soil-based systems. Fix anchor points into solid masonry with appropriate rawl plugs and M8 or M10 bolts; for lightweight walls, distribute the load across a full timber backing frame bolted at floor and ceiling.
- 2
Build or mount the frame and irrigation
Attach your chosen frame — timber batten grid, metal rail system, or stretched galvanised wire mesh — firmly to the wall with a 30-50 mm air gap behind it. This gap prevents moisture from sitting against the wall and causing damp. Before filling any planters, run a drip-irrigation tube or soaker hose from the top, zip-tied to the frame every 30 cm. Connect it to a simple battery-operated timer; in a Greek summer this should deliver water twice daily in the early morning and early evening.
- 3
Fill planters with the right growing medium
Standard garden soil is too heavy and compacts in small pockets, blocking drainage. Use a lightweight mix of 60% quality potting compost, 30% perlite, and 10% coir fibre. This blend drains well, stays aerated, and is light enough to avoid overloading the wall. Add a slow-release granular fertiliser to each pocket at planting time; this feeds plants for the first three months without requiring liquid feeding.
- 4
Plant in deliberate zones
Start planting from the bottom and work upward so you do not disturb settled pockets. Group plants by water need: herbs (rosemary, thyme, lavender) in the sunniest, driest positions at the top; leafy plants (basil, mint, parsley) in the middle where moisture is more consistent; shade-tolerant trailing plants (ivy, tradescantia, ferns) at the bottom or in any shaded lower sections. Leave a little space for each plant to spread; overcrowding in the first weeks is a common mistake that leads to mould.
- 5
Maintain and monitor in the first month
The first four weeks are critical. Check soil moisture daily by pressing a finger into each pocket — it should feel damp but not waterlogged. Look for yellowing leaves (overwatering or nutrient deficiency) or wilting despite watering (blocked drip emitter or root bound pocket). Trim dead or leggy growth weekly to encourage bushy, compact plants. After one month, plants will have established root systems and the garden will largely look after itself with the automated irrigation running.
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FAQ
- What plants are best for a vertical garden on a south-facing Greek balcony?
- Drought-tolerant Mediterranean herbs are the top choice: rosemary, thyme, oregano, sage, and lavender all handle full sun and periods without rain very well. For colour, add succulent varieties like sedums or trailing gazanias. Avoid water-hungry plants like ferns or impatiens on a south-facing wall — they will need watering multiple times a day in July and August.
- Can a vertical garden be installed on a rented property?
- Yes, but choose a free-standing system rather than drilling into the wall. A heavy-gauge steel A-frame or a wooden ladder-style shelf with built-in planter rails can hold a substantial vertical garden without any fixings at all. This approach is also popular in holiday rentals where the owner wants a feature that can be moved or removed between tenants.
- How often should I water a vertical garden in summer?
- In the Greek summer (June-September), most wall gardens need watering twice a day — once in the early morning before the heat builds and once in the early evening after the hottest part of the day passes. A battery-operated drip timer set to two short cycles of 5-10 minutes each is the simplest solution. In spring and autumn, once a day or every other day is usually sufficient; in winter most outdoor plants need very little supplemental water.