How to clean and waterproof garden cushions the right way
Garden cushions take a lot of punishment outdoors: rain, dust, sun, and the occasional spill. Cleaning them properly and applying the right protection will keep them looking their best for longer and help the fabric repel water more effectively. This article walks you through the process step by step.
How do I clean garden cushions?
Always start with cleaning. Shake or brush off any loose debris such as leaves and dirt. Lightly wet the cushion with water, then apply Sprayhood & Tent Shampoo to the surface and work it in with a soft brush or sponge. Rinse thoroughly with clean water.
Sprayhood & Tent Shampoo is suitable for synthetic fabrics such as polyester and acrylic, which are commonly used in garden cushions. It removes surface dirt and general grime without harming the fabric.
Allow the cushion to dry completely before moving on to the next step. Applying protection to a damp cushion will reduce its effectiveness.
How do I remove stubborn stains from garden cushions without damaging the fabric?
Some stains won't come out with shampoo alone — think deep-set soiling or discolouration that won't budge. In those cases, use Fabric Power Cleaner as a second step, after the initial cleaning.
Apply the stain remover directly to the affected area rather than over the entire surface. Leave it to work for a maximum of 15 minutes, then rinse thoroughly. This targets the stain precisely while minimising stress on the rest of the fabric.
Again, wait until the cushion is completely dry before moving on to the protection step.
Do I need to clean garden cushions before waterproofing them?
Yes. Applying a protective treatment to a dirty cushion simply seals the dirt in. The water-repellent product will also bond less effectively to the fabric. Always clean and dry the cushion first before starting any protective treatment.
How do I make my garden cushions water-repellent?
Once the cushion is clean and dry, apply Sprayhood & Tent Protector. This is a waterproofing product designed for synthetic outdoor fabrics. Spray it evenly over the surface and allow it to absorb according to the instructions on the label.
After treatment, the fabric will repel water much more effectively. Drops will bead up and roll off rather than soaking in. This also helps keep the cushion cleaner over time, as dirt has a harder time adhering to a treated surface.
Sprayhood & Tent Protector is PFAS-free and safe for home use. No specialist equipment is required.
What if my garden cushions are made of cotton or canvas?
Many garden cushions are made from synthetic materials, but some covers are cotton or canvas. For these fabrics, skip the Sprayhood & Tent Protector in step 3 and use Canvas & Cotton Protector instead. It is specifically formulated for natural fibres and keeps the fabric breathable.
Not sure which material you have? Check the label on the cushion. If it says polyester or acrylic, go with Sprayhood & Tent Protector. If it says cotton or canvas, choose Canvas & Cotton Protector.
The complete step-by-step overview
- Clean — Apply Sprayhood & Tent Shampoo, work it in, and rinse off. Leave to dry.
- Remove stains (only if needed) — Apply Fabric Power Cleaner directly to stubborn stains. Leave for a maximum of 15 minutes, then rinse thoroughly. Leave to dry.
- Protect — Apply Sprayhood & Tent Protector (synthetic fabrics) or Canvas & Cotton Protector (cotton/canvas) to the clean, dry cushion.
How often should you maintain garden cushions?
It depends on how frequently you use the cushions and how they are stored. If they stay outside and get wet regularly, it makes sense to treat them at the start and end of the season. Cushions that are stored away more often will need less frequent treatment. A handy indicator that it's time to reapply: when water no longer beads up but soaks into the fabric, it's time for a fresh coat of protection.
Frequently asked questions
Can I machine-wash garden cushions?
That depends on the material and construction of the cushion. Many garden cushions are better treated by hand, as machine washing can damage or distort the fabric. Always check the care label first.
Can I use a pressure washer?
We advise against it. A pressure washer can damage the fabric fibres and break down the coating. Use a soft brush and plenty of water instead.
Can I combine steps or skip one?
Never skip step 1, even if the cushion looks fairly clean. Step 2 is only needed when there are genuinely stubborn stains. Step 3 will only work properly on a clean, dry surface, so always follow the steps in the correct order.
Do these products work on garden chairs with woven plastic?
These products are designed for textile fabrics. Woven plastic behaves differently from fabric. Use them on textile cushions only — not on hard plastic or woven synthetic furniture.