The Hidden Dangers of Summer: Toxic Plants, Hot Pavement, and More

by Grace Briggs

Summer brings sunny skies, longer days, and outdoor adventures for pets and their humans alike. But while we enjoy the warmth, it’s important to recognise that summer poses unique risks to our four-legged friends—some of which aren't always obvious.

At Direct4Pet, we’re passionate about keeping pets safe and healthy all year long. That’s why we’ve compiled this comprehensive guide to the hidden hazards of summer—from garden plants and sizzling pavements to dangerous insects and BBQ leftovers. With the right precautions, your pet can enjoy the season without worry.

1. Toxic Plants That Thrive in Summer

Gardens, parks, and patios are bursting with colourful plants this time of year—but many of these are dangerously toxic to pets if ingested.

Common Toxic Summer Plants:

  • Lilies: Extremely toxic to cats. Even a small nibble can lead to acute kidney failure.

  • Sago Palm: Found in warm climates and decorative pots. All parts are toxic, especially the seeds.

  • Oleander: Just a few leaves can be fatal to dogs and cats.

  • Azaleas & Rhododendrons: Can cause vomiting, drooling, diarrhoea, and heart arrhythmias.

  • Hydrangeas: Contain cyanogenic glycosides, which can cause vomiting and lethargy.

  • Foxglove: Contains digitalis, which affects the heart and can be deadly.

Symptoms to watch for: vomiting, diarrhoea, drooling, lethargy, loss of appetite, tremors, or seizures.

What You Can Do:

  • Remove or fence off toxic plants in your yard.

  • Choose pet-safe plants like marigolds, petunias, snapdragons, and spider plants.

  • Use raised planters or vertical gardens to keep plants out of reach.

  • Always supervise pets in new environments (gardens, trails, neighbours’ gardens).

2. Hot Pavement & Burned Paw Pads

During the peak of summer, pavement, asphalt, and sand can become dangerously hot—hot enough to burn paw pads within minutes.

How Hot Is Too Hot?

If the outside temperature is 29°C, asphalt in direct sun can reach over 54°C. At that temperature, skin damage can occur in less than 60 seconds.

Try the 7-second rule: Place the back of your hand on the ground. If you can’t hold it there comfortably for 7 seconds, it’s too hot for your pet.

Signs of Burned Paws:

  • Limping or refusal to walk

  • Red, blistered, or peeling paw pads

  • Licking or chewing feet

  • Whining or discomfort after being outside

How to Prevent Paw Injuries:

  • Walk your dog early in the morning or late in the evening.

  • Stick to grassy or shaded areas.

  • Use protective booties or apply paw wax before walks.

  • Keep paw balm on hand to soothe minor burns or cracks.

Dorwest Paw & Nose Balm 50g £13.89 and MP Labo Sensiderm Nose & Paw Balm Dogs & Cats 50ml £19.69

3. Heatstroke and Dehydration

Unlike humans, pets can’t sweat efficiently. Dogs cool off by panting, while cats rely on grooming and limited sweating through paw pads. On hot or humid days, this isn’t always enough.

Breeds at Higher Risk:

  • Brachycephalic breeds (Pugs, Bulldogs, Boxers, Persians)

  • Elderly pets

  • Overweight animals

  • Pets with heart or respiratory issues

Signs of Heatstroke:

  • Excessive panting or drooling

  • Bright red gums or tongue

  • Rapid heart rate

  • Vomiting or diarrhea

  • Stumbling or collapse

  • Seizures or unconsciousness

Prevention Tips:

  • Always provide access to cool, clean water.

  • Avoid mid-day walks and strenuous play.

  • Provide shaded areas or bring your own sun shelter.

  • Never leave a pet in a parked car—even for a minute. On a 24°C day, your car can reach 38°C in just 10 minutes.

Ancol Cooling Dog Coat £12.39 and Henry Wag Pet Cool Mat £7.99

4. Insect Bites, Stings & Parasites

Summer also brings out pests that can pose serious threats to pets.

Common Summer Pests:

  • Fleas & Ticks: Can cause skin irritation, allergic reactions, and transmit Lyme disease, ehrlichiosis, and more.

  • Mosquitoes: Carriers of heartworm—especially dangerous for dogs.

  • Bees & Wasps: Can cause localised swelling, pain, or allergic reactions.

  • Spiders & Ants: Bites from some species may lead to inflammation or infection.

What You Can Do:

  • Keep pets on vet-approved flea, tick, and heartworm preventatives.

  • Inspect pets after hikes, especially around ears, paws, and tails.

  • Use natural insect repellents that are safe for pets.

  • Keep lawns trimmed and clean to reduce tick habitats.

5. BBQ and Picnic Hazards

Whether it’s a garden BBQ or a beach picnic, summertime eats can be tempting—and dangerous—for your furry friends.

Foods That Are Harmful:

  • Grapes and raisins – toxic to dogs and can cause kidney failure.

  • Onions and garlic – damage red blood cells.

  • Corn cobs – choking hazard and potential intestinal blockages.

  • Bones – especially cooked bones, which can splinter.

  • Chocolate, xylitol (found in sugar-free gum), and alcohol – all highly toxic.

Safety Tips for Outdoor Meals:

  • Keep pets indoors or on leads during BBQs.

  • Ask guests not to feed pets table scraps.

  • Have safe treats on hand to redirect food begging.

  • Clean up immediately after meals to avoid dropped scraps.

Natures Menu Freeze Dried Bites Turkey For Dogs 20 x 15g £19.69 and Scrumbles Chonks Meaty Treats Salmon 60g £6.49

Bonus Tips: Other Summer Hazards to Watch For

  • Pool Chemicals: Chlorine and other chemicals can irritate skin or cause stomach upset if ingested.

  • Algae Blooms: Blue-green algae in lakes/ponds is extremely toxic—avoid letting pets swim or drink from unfamiliar water sources.

  • Fireworks: Loud noises can cause anxiety or panic. Keep pets indoors and offer calming supplements or noise-dampening crates.

Enjoy Summer—Safely

Summer should be a time of fun, bonding, and making memories with your pets. With a little preparation and the right gear, you can help your furry friend enjoy all the best parts of the season—without the risks.

At Direct4Pet, we’re here to help you protect what matters most. Check out our full range of pet products including everything from paw protection and cooling gear to natural pest control and healthy seasonal treats.

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