How to plaster a garden wall weatherproof and beautiful at the same time

How to plaster a garden wall weatherproof and beautiful at the same time

Material and tool list

The following materials and tools are required to plaster a homemade brick wall in a weatherproof and beautiful way:

  • Primer or adhesive bridge
  • Basic plaster (mortar plaster for brick wall, lime plaster for concrete wall)
  • Decorative plaster

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  • Drill (€ 43.99 at Amazon *) with agitator or concrete mixer (for large areas)
  • Mortar pail
  • Trowel
  • Smoothing trowel (trowel)
  • Float

If your garden wall is made of different materials or seamlessly merges into a hedge, include reinforcement in the plaster. Special reinforcement fabric and special edges reduce surface tension and prevent cracking. Reinforcement is applied at the same time as the base plaster and pressed into the damp plaster layer before you spread the rest of the plaster over it in full thickness.

Preparatory work

The garden wall must not be dirty so that the base and decorative plaster hold well. You should therefore brush the masonry thoroughly to completely remove loose particles. Then apply the primer to the smoothest possible surface. A higher quality adhesive bridge is recommended if it is a concrete wall or a substrate that is critical for plaster.

Apply base plaster - this is how it works

Once the primer has dried, mix the base plaster in a bucket. Please follow the manufacturer's instructions for mixing proportions. Always mix as much plaster as you can use within 60 minutes. The stirring work is much easier by hand with a drill and an attached stirrer. Use a trowel to apply the plaster evenly to the wall surface. Then smooth the surface with the float.

Decorative plaster gives garden walls a beautiful robe

Decorative plaster is only applied to the base when this layer is completely dry. In order to beautify your garden wall with plaster, the specialist trade has a variety of uncomplicated options for you:

  • Grainy plaster: rub in with a trowel
  • Brush plaster: apply with a brush
  • Roll-on plaster: distribute with a texture roller

Mineral silicate plaster, which is alkaline for use on garden walls, is particularly recommended. This has the advantage that the decorative plaster not only beautifies the wall, but also keeps it free of moss, algae and fungi. There is also silicate plaster in beautiful colors, which you can optionally intensify with a final coat.


Do you just want to plaster a garden wall and then clad it with wood, plastic or natural stone? In this case, inexpensive cement plaster is sufficient as a primer to give the cladding an extra portion of stability and durability.