Spring Is Here—and So Are the Hazards
After months of short, miserable walks in the Portland rain, spring feels like a relief. I finally get to take Benny (my 9-year-old lab/pit mix) and Maple (my 2-year-old Australian shepherd) out for proper hikes. But during my five years at a mixed-practice clinic, spring also meant my waiting room was packed.
Warmer weather brings out the hazards. Some are obvious. Others catch even experienced owners off guard. Here's the thing: you don't need to panic. You just need to know what to look for.
Here are eight spring dangers I saw constantly in the clinic. I've also included exactly how I protect my own dogs.
1. Lawn Fertilizers and Pesticides
Spring is peak season for lawn treatments. Many common fertilizers, herbicides, and pesticides are highly toxic. Even the bags labeled "pet-safe" cause severe gastrointestinal upset if your dog snacks on them (and trust me, they'll try).
How to protect your dog:
- Keep your dog off freshly treated lawns for at least 48 hours (or whatever the label dictates).
- Watch for small granules on the grass. Dogs ingest them or absorb the chemicals right through their paw pads.
- Wash your dog's paws after walks through pristine-looking neighborhoods.
- If you treat your own lawn, lock all chemicals in sealed, elevated cabinets.
Signs of poisoning: Vomiting, diarrhea, drooling, lethargy, difficulty breathing, or seizures. If you see this, call your vet or the ASPCA Animal Poison Control Center (888-426-4435) immediately.
2. Toxic Spring Plants
Everyone loves spring blooms. Dogs love to dig them up. I saw bulb toxicity cases constantly every April. The bulbs are essentially concentrated packets of toxins.
- Tulips — The bulbs are the most toxic part. They cause intense gastrointestinal irritation.
- Daffodils — All parts are toxic, but the bulb is the real danger.
- Azaleas and Rhododendrons — Even a few leaves can cause vomiting, diarrhea, and potentially cardiovascular collapse.
- Lily of the Valley — Causes serious cardiac issues.
- Sago Palm — Extremely toxic. Ingestion of any part can be fatal.
How to protect your dog: Familiarize yourself with the toxic plants in your yard. If you plant a garden, stick to dog-safe options like sunflowers, snapdragons, or marigolds. I'd skip this if you have a digger—just avoid planting bulbs entirely if your dog shares Maple's landscaping habits.
3. Ticks and Fleas
Ticks and fleas wake up the second temperatures stay above 40 degrees. That means spring is prime season. Ticks carry Lyme disease, ehrlichiosis, anaplasmosis, and Rocky Mountain spotted fever. Fleas cause allergic reactions and transmit tapeworms.
How to protect your dog:
- Stick to year-round prevention. Talk to your vet about what actually holds up in your area.
- Check your dog after every walk. I volunteer monthly at the Multnomah County Animal Shelter, and I pull dozens of ticks off new arrivals every spring.
- Check the ears, armpits, groin, and between the toes. Ticks love warm, dark spots.
- Keep your yard trimmed and clear out dead leaves.
Try our free tools: Flea & Tick Season Guide for regional risk levels, and Plant Safety Checker for spring plants.
4. Seasonal Allergies
Dogs get seasonal allergies just like we do. Instead of sneezing, their symptoms usually show up on their skin. Benny's paws get incredibly itchy every May.
Common allergy symptoms in dogs:
- Excessive scratching, licking, or chewing (especially the paws, belly, and ears).
- Red, inflamed skin.
- Recurrent ear infections.
- Hot spots.
- Watery eyes or a runny nose.
How to manage allergies:
- Wipe your dog down with a damp cloth after outdoor time. It physically removes the pollen.
- Wash their bedding weekly in hot water.
- Bathe them with a gentle, oatmeal-based shampoo.
- Talk to your vet about antihistamines or prescription medications. The honest downside to some meds is drowsiness, but it's usually worth it for the relief.
5. Standing Water and Puddles
Maple thinks every spring puddle is her personal drinking fountain. Standing water harbors bacteria, parasites, and chemical runoff. Leptospirosis is a bacterial infection spread through contaminated water. It spikes heavily in the spring.
How to protect your dog:
- Don't let your dog drink from puddles, ponds, or standing water.
- Carry fresh water and a collapsible bowl on your walks (I've tested over 600 dog products since 2019, and simple silicone bowls hold up best).
- Ask your vet about the leptospirosis vaccine. Treating a severe lepto case in the clinic is what sealed it for me—now my dogs get vaccinated annually.
- Be highly cautious after heavy rains. That's when lawn chemicals wash into the streets.
6. Open Windows and Balconies
When the weather warms up, I throw open my windows. This creates a massive fall risk. In my clinic days, I saw plenty of "high-rise syndrome." It happens mostly with small breeds, puppies, and dogs who lose their minds over squirrels.
How to protect your dog:
- Install sturdy screens on all open windows.
- Never leave a dog unsupervised on a balcony or elevated deck.
- Ensure screen doors latch securely. A determined dog will push right through a loose screen.
- Remember that even calm dogs react unpredictably to a bird flying by.
7. Bee and Wasp Stings
Curious dogs investigate buzzing insects with their noses. Most bee stings just cause localized pain and swelling. But just like humans, some dogs have severe allergic reactions.
What to do if your dog is stung:
- If you see the stinger, scrape it out with a credit card. Don't squeeze it, or you'll inject more venom.
- Apply a cold compress to bring down the swelling.
- Watch them closely for the next few hours. Monitor for excessive swelling, difficulty breathing, vomiting, collapse, or hives.
When to seek emergency care: If your dog shows signs of anaphylaxis (facial swelling, breathing trouble, widespread hives), get to an emergency clinic immediately. Ask your vet during your next visit if you should keep diphenhydramine (Benadryl) on hand. You'll need the exact dosage for your dog's weight.
8. Foxtails and Grass Awns
If you live on the West Coast, you know about foxtails. These barbed seed heads are a nightmare. They dry out in late spring and embed themselves in a dog's skin, ears, nose, eyes, and paws. Because of their barbed design, they only travel one way: deeper inside (which is exactly as horrifying as it sounds).
How to protect your dog:
- Learn to identify foxtail grasses in your area. They look like bushy bristles on tall stalks.
- Avoid walking through tall, dry grass entirely during foxtail season.
- Inspect your dog thoroughly after every hike.
- Check between the toes, inside the ears, and around the face.
Signs of a foxtail problem: Sudden, violent sneezing means one might be in the nose. Head shaking points to the ears. Limping means check the paws. (With Benny's hip dysplasia, I'm already hyper-aware of how he walks, so any new limp triggers an immediate paw inspection). If you see a draining wound that won't heal, see your vet promptly. Foxtails don't come out on their own. Retrieving them is often a surgical procedure.
A Simple Spring Safety Checklist
Getting ready for spring hikes? Our Dog Hiking Adventure Kit bundles tick prevention tools, first aid, and trail essentials.
- Restart or verify your flea and tick prevention
- Check your yard for toxic plants
- Secure all window screens and balcony access
- Stock up on fresh water supplies for walks
- Schedule a spring wellness exam with your vet
- Learn to identify foxtails if they grow in your region
- Store all lawn chemicals out of reach
Spring really is the best season to hike with your dogs. A little awareness goes a long way. It keeps your dogs safe, and it saves you a very expensive trip to the emergency vet.
Related Reading
- Spring Allergies in Dogs -- Managing seasonal allergy flare-ups
- Best Dog Hiking Gear -- Trail-ready gear for spring outings
- Dog Health Checklist -- Seasonal health monitoring