Never Park Under This Tree in Summer: It’s the Worst for Your Car’s Paint Job

With the onset of the summer heat, securing a shaded parking space becomes a top priority for drivers. Everyone is trying to shield their car interiors from the sweltering heat, preventing the steering wheel, seats, and gear shift from turning into hot plates. Yet, this seemingly smart habit can turn into a nightmare for your vehicle’s maintenance and the longevity of its exterior. Among the various trees that line our streets and parking lots, providing much-needed shade, one specific type poses a real threat to our vehicles.

If you mistakenly park your vehicle under this tree, it will collect more than just pollen or bird droppings. The car’s exterior may suffer long-term damage. You may find the hood and roof coated with a sticky, highly aggressive substance that chemically attacks the protective varnish on your car. Under the sunlight and heat, these residues embed deeply and create an ideal environment for fungi to thrive, which are destructive to the paint.

The main culprit, the number one enemy of our cars in the summer, is the linden tree. The risk is widespread in parking areas, as it is one of the most planted trees in France: a large portion of shaded parking spots are located precisely under its branches. This sticky substance (known as honeydew) that collects on the hood and roof of the car isn’t immediately corrosive. However, after an extended period under intense heat, it bakes onto the car’s surface and becomes a breeding ground for sooty mold. This microscopic fungus eats away at the original clear varnish and creates acidic marks that often leave stains on the car paint, usually requiring professional polishing or buffing.

If the damage has already been done, a quick car wash might be enough, provided you act fast: aphid honeydew can dissolve in water, but it’s best not to let it dry and start eating away at the paint. The best solution? Always keep a bottle of water and a cloth in your car to wipe off the bulk of the residues as soon as you return to your vehicle, and then head to a car wash for a more thorough cleaning.

Fortunately, it’s easy to identify a linden tree… and thus avoid it! It’s recognizable by its heart-shaped leaves and small yellowish flowers grouped in clusters, accompanied by a paler small leaf that resembles a miniature helicopter blade. Its scent is also quite distinctive: in summer, it emits a very strong sweet fragrance. If a parking spot smells like honey tea, be wary! And if needed, there are also mobile apps that help identify trees and plants around you.

However, the linden tree is not alone in this: whether it’s the oak with its acidic tannins, the pine with its hardening resin, or the maple with honeydew similar to the linden, these trees threaten the majority of our parking spaces in France. It’s nearly impossible to avoid this trap for your car’s exterior, whether during daily commutes or on vacation routes. To protect against these vegetative assaults, apply a hard wax that acts as a protective film on the paint before your summer outings.