Why Is My Driveway Turning Yellow? Pollen Season in Jacksonville

If you’ve stepped outside recently and noticed a yellow-green film coating your driveway, car, and patio furniture, you’re not imagining it — Jacksonville’s pollen season is one of the more intense seasonal changes homeowners deal with here, and it shows up fastest on exterior surfaces you’d otherwise think of as “clean.”

What’s Actually Causing the Yellow Film

That coating is primarily pine and oak tree pollen, both of which are heavily present throughout Jacksonville and the broader First Coast area. Pollen season here typically ramps up in February and runs heaviest through April, coating driveways, walkways, patio furniture, cars, and pool decks in a fine yellow layer that can look almost dusty from a distance.

Unlike algae or efflorescence — which build up gradually over months — pollen buildup can appear almost overnight during peak season, especially after a windy day or a stretch of dry weather that lets pollen accumulate without rain to wash it away.

Is Pollen Buildup Actually a Problem, or Just Ugly?

Mostly cosmetic, but worth addressing for a couple of practical reasons:

• It can make surfaces slippery when wet, particularly on pool decks and walkways, similar to the slip-hazard concern we flag with algae buildup.
• It can mask other developing issues. A heavy pollen coating can make it harder to notice early-stage algae growth or efflorescence starting to develop underneath, since everything just looks generally dingy rather than showing the more distinct colors and patterns those specific issues have.

How to Tell Pollen Apart From Algae or Efflorescence

This matters because each needs a different response:

• Pollen is yellow-green, appears quickly (sometimes within days), and is heaviest February through April.
• Algae is green or black, builds up gradually over months, and is worse in shaded areas — see our full efflorescence vs. algae comparison for the complete breakdown.
• Efflorescence is white and chalky, not yellow, and is a mineral issue rather than organic buildup — full explanation here.

What to Do About It

For most surfaces, a standard rinse or driveway cleaning handles pollen buildup effectively, since it sits on the surface rather than embedding into it the way older algae staining can. If you’re due for a seasonal driveway or house cleaning anyway, timing it toward the tail end of pollen season (late April) means you’re addressing both pollen and any algae that’s built up over the winter in one visit.

If you have a pool, this is also a good seasonal trigger to check your pool deck specifically, since pollen combined with pool humidity can accelerate the algae growth we typically see picking up as temperatures rise into summer. See our pool deck cleaning guide for more.

Dealing with pollen buildup on your property? We can handle it as a standalone cleaning or bundle it with a full seasonal driveway and house wash.