People sit on POLYWOOD Braxton Dining Arm Chairs and Farmhouse Trestle 65 Inch Benches around Farmhouse 37 Inch by 72 Inch Dining Tables in Green by a lakeside cabin in the woods.

How to Remove Tree Sap & Pollen From Outdoor Furniture

Written by: Caitlin Evans

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Published on

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Last updated on

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Time to read 4 min

If trees surround your deck or patio, you've undoubtedly dealt with sap and pollen speckling your outdoor furniture come spring and summer. And you're not alone: Homeowners all over the country battle them too.

But we can help you out of these sticky, unsightly situations. Keep reading to see practical, easy methods for effectively removing sap and pollen from various patio furniture and cushion materials, helping you maintain the cleanliness and beauty of your outdoor space all season long.

How Tree Sap and Pollen Impact Furniture

When exposed to plant byproducts like pollen and sap, certain furniture materials are more susceptible to damage.

Two rustic wooden cabins are nestled in a forest with porches and a lake view through the trees.

Pollen

When dry, pollen is harmless to outdoor furniture. However, when it gets wet, a chemical reaction occurs that can lead to tough stains and even corrosion on certain materials, such as wrought iron and aluminum, if it's not quickly removed.

Sap

If tree sap lingers too long on furniture, it can lead to stains and discoloration. On top of that, everything sticks to it. Dirt, dust, pet hair, and other debris will easily adhere to sap and create a bigger mess.

Removing Tree Sap and Pollen From POLYWOOD Furniture

Browse the cleaning methods below to learn how to remove sap and pollen from our high-density polyethylene (HDPE) lumber, outdoor performance fabrics, and powder-coated aluminum.

HDPE Lumber

Steps for Removing Tree Sap


Supplies Needed

  • Undistilled white vinegar
  • Water
  • Plastic bucket or bowl
  • Soft-bristle brush

Instructions

  1. In the bucket, mix equal parts vinegar and water.
  2. Scrub the mixture over the stain with the brush until it's gone.
  3. Rinse with clean water and let the furniture air-dry.

PRO TIP:
Rubbing alcohol also works in place of vinegar.

Steps for Removing Pollen


Supplies Needed

  • Microfiber cloth
  • Mild dish soap
  • Water
  • Plastic bucket
  • Soft-bristle brush

Instructions

  1. Wipe off dry, loose pollen with the cloth.
  2. Mix a bit of dish soap and warm water in the bucket.
  3. Scrub all surfaces with the soapy water and soft-bristle brush.
  4. Rinse with clean water and let your furniture air-dry.

Outdoor Performance Fabric

Steps for Removing Tree Sap


Supplies Needed

  • Rubbing alcohol
  • Soft cloth
  • Water
  • Mild dish soap
  • soft-bristle brush

Instructions

  1. Dampen the cloth with alcohol and gently dab at the sap. (Don't scrub—it can push the sap deeper into the fabric.)
  2. Let the alcohol sit on the fabric for 30–60 seconds.
  3. Mix soap and water in the bucket.
  4. Scrub soapy water over the area with the soft-bristle brush.
  5. Rinse thoroughly with clean water and prop your cushion on its side to air-dry.


PRO TIP:
Spot test an inconspicuous area of your cushions with a small amount of rubbing alcohol first to check for colorfastness.

A black POLYWOOD Vineyard Deep Seating Chair with white cushions is shown from the top.
Featured: Vineyard Deep Seating Chair in Black/Natural Linen

Steps for Removing Pollen


Supplies Needed

  • Water
  • Mild dish soap
  • Plastic bucket
  • Soft-bristle brush

Instructions

  1. Brush loose pollen off your cushions.
  2. Rinse away remaining pollen with clean water.
  3. Mix soap and water in the bucket.
  4. Gently scrub any stubborn, sticky residue with the soapy water and soft-bristle brush.
  5. Rinse the cushions again with clean water and air-dry them on their sides.

Powder-Coated Aluminum

Steps for Removing Tree Sap


Supplies Needed

  • Rubbing alcohol
  • Mild dish soap
  • Water
  • Sponge
  • Soft-bristle brush
  • Towel

Instructions

  1. Pour a bit of alcohol onto the sponge.
  2. Dab or gently rub at the sap until it softens and comes off.
  3. Mix soap and water in the bucket.
  4. Wash the area with the soapy solution and the soft-bristle brush.
  5. Rinse your furniture with clean water and towel-dry.

PRO TIP:

Spot test an inconspicuous area of the aluminum with a bit of rubbing alcohol first to check for colorfastness.

Steps for Removing Pollen


Supplies Needed

  • Microfiber cloth
  • Mild dish soap
  • Water
  • Sponge
  • Towel

Instructions

  1. Wipe away loose pollen with the microfiber cloth.
  2. Mix a few drops of dish soap with some warm water.
  3. Wipe the soapy mixture over the aluminum with the sponge.
  4. Rinse your furniture with clean water and dry it with the towel.

Watch and Learn

Explore additional methods to keep tough stains off POLYWOOD furniture and cushions.

Cleaning Tree Sap and Pollen Off Different Surfaces

Follow these steps to effectively eliminate tree sap and pollen from a variety of outdoor furniture materials, including wood, aluminum, wrought iron, injection-molded plastic, and wicker.

Wood

Supplies Needed

  • Rubbing alcohol
  • Water
  • Plastic bucket or bowl
  • Cloth or soft sponge
  • Towel

Instructions

  1. Mix rubbing alcohol and water in the bucket at a 1:1 ratio.
  2. Apply the solution with the cloth or sponge, gently scrubbing the affected area to remove the stain.
  3. Rinse with clean water and towel-dry the furniture.

Wrought Iron, Wicker, and Injection-Molded Plastic

Supplies Needed

  • Mild dish soap
  • Water
  • Plastic bucket or bowl
  • Soft sponge
  • Rubbing alcohol
  • Clean cloth
  • Towel

Instructions

  1. Mix soap and water in the bucket.
  2. Use the sponge to gently scrub the soapy solution over stains and rinse with clean water.
  3. Wipe rubbing alcohol onto stains with the cloth, carefully dabbing at them until they’re gone.
  4. Rinse once more with clean water and towel-dry the furniture.

Prevention Tips

Here are some easy ways to keep your outdoor furniture safe from sap and pollen now and in the future.

  • Trim trees: Trim back trees or shrubbery to reduce the likelihood of sap or pollen landing on your furniture.
  • Consider placement: Avoid positioning furniture directly under trees or near landscaping that produces a lot of sap or pollen.
  • Regular cleaning: Remove pollen and sap before it has a chance to build up.
  • Use covers: Use protective covers to shield furniture from the elements.
  • Try protective coatings: Shield your furniture from sap and pollen with these protective coatings:
    • Wood: exterior sealant or paint
    • Aluminum and wrought iron: car wax
    • Natural wicker: lemon oil
    • Cushion fabric: spray-on silicone protectant
Two black POLYWOOD Modern Adirondack Chairs are set up on a lawn with pumpkins and mums beside each one.
Featured: Modern Adirondack Chair in Black

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Caitlin-Evans-author-bio-photo

Caitlin Evans

Cait is an Indiana-based creative content writer who has been with POLYWOOD since 2020. She’s a Purdue alumna, a proud logophile (word nerd), and an advocate of the Oxford comma. In her free time, Cait loves gardening, cooking, running, camping, and spending time with her husband and four fur children.