Keeping your outdoor spaces free from spiders can make a big difference in comfort and cleanliness. Whether you’re dealing with patios, gardens, or entryways, using an effective spider killer spray helps create a protective barrier and prevents infestations. In this guide, we’ve selected nine of the best outdoor spider sprays, including both powerful chemical killers and natural repellents. These options are designed for long-lasting results, easy application, and safety around your home, helping you choose the right solution to keep spiders away effectively.
1. Miss Muffet’s Revenge Spider Killer
Miss Muffet’s Revenge is widely known as one of the most powerful outdoor spider killer sprays available. Designed for long-term protection, it not only eliminates spiders on contact but also creates a lasting barrier that continues working for months. Its ready-to-use formula makes it especially convenient for homeowners who want quick and effective outdoor pest control.
Key Features
- Long-lasting residual effect (up to 12 months)
- Kills spiders on contact and prevents return
- Odorless and non-staining formula
- Ready-to-use spray bottle (no mixing required)
Why It’s Best For
This spray is ideal for homeowners who want a long-term outdoor solution without frequent reapplication. It works especially well around patios, garages, windows, and entry points where spiders tend to build webs. If you’re dealing with recurring infestations, this product stands out for its extended protection.
Performance & Durability
Miss Muffet’s Revenge delivers strong performances both instantly and over time. Upon application, it quickly kills visible spiders, while the residual barrier continues to repel and eliminate new ones. Its durability is one of its biggest strengths—many users report effectiveness lasting several months even in outdoor conditions. However, for best results, applying it in dry weather helps maximize longevity.
Pros & Cons
Pros
- Extremely long-lasting protection
- Easy to apply with no preparation needed
- Works as both killer and preventative solution
Cons
- Slightly more expensive than average sprays
- Not a natural or eco-friendly formula
Overall Verdict
Miss Muffet’s Revenge Spider Killer is a top-tier choice for outdoor use, especially if you want a set-it-and-forget-it solution. Its powerful formula and extended residual effect make it one of the most reliable options for keeping spiders away long-term.
2. Mighty Mint Peppermint Oil Insect & Spider Spray
Mighty Mint Peppermint Oil Spray offers a natural approach to controlling spiders outdoors. Made with plant-based ingredients, it uses the strong scent of peppermint oil to repel spiders instead of relying on harsh chemicals. This makes it a popular choice for those who prefer a safer, eco-friendly solution around homes, gardens, and pets.
Key Features
- Natural peppermint oil formula
- Safe for use around pets and family (when used as directed)
- Fresh, minty scent instead of harsh chemical odor
- Ready-to-use spray bottle for easy application
Why It’s Best For
This spray is best for users looking for a non-toxic and eco-friendly spider control option. It’s ideal for light to moderate infestations and for maintaining spider-free outdoor areas like patios, balconies, and doorways without using strong pesticides.
Performance & Durability
Mighty Mint works effectively as a repellent rather than a killer. It drives spiders away with its strong scent, disrupting their ability to settle and build webs. However, its natural formula means it doesn’t last as long as chemical sprays. You may need to reapply every few days, especially after rain or heavy outdoor exposure, to maintain effectiveness.
Pros & Cons
Pros
- Natural and environmentally friendly
- Pleasant smell compared to chemical sprays
- Safe for frequent use around living spaces
Cons
- Does not kill spiders instantly
- Requires more frequent reapplication
- Less effective for severe infestations
Overall Verdict
Mighty Mint Peppermint Oil Spray is a great choice for those prioritizing safety and natural ingredients over long-lasting chemical control. While it may need more frequent use, it provides a gentle yet effective way to keep spiders away from outdoor areas.
3. Harris Spider Killer Odorless Spray
Harris Spider Killer is a reliable and budget-friendly solution designed for both indoor and outdoor spider control. Known for its odorless and non-staining formula, it offers effective pest elimination without leaving behind unpleasant smells or marks. It’s especially useful for homeowners looking for a strong chemical solution that’s easy to apply and versatile.
Key Features
- Odorless and non-staining formula
- Kills spiders and other insects (ants, roaches, fleas)
- Long-lasting residual effect after drying
- Suitable for indoor and outdoor use
Why It’s Best For
This spray is best for users who want a multi-purpose insect killer that handles more than just spiders. It’s ideal for treating outdoor areas like foundations, patios, decks, and entry points, while also being safe enough for indoor crack-and-crevice applications.
Performance & Durability
Harris Spider Killer performs well by killing spiders once the spray dries, creating a protective barrier that continues to work over time. Its water-based deltamethrin formula provides consistent results and can eliminate even dangerous species like black widow and brown recluse spiders.
The long-lasting effect makes it a solid option for outdoor use, although periodic reapplication may be needed depending on weather exposure.
Pros & Cons
Pros
- Effective against multiple types of pests
- Odorless, making it comfortable to use around homes
- Long-lasting residual protection
Cons
- Not a natural or eco-friendly solution
- Works best after drying (not instant kill in all cases)
Overall Verdict
Harris Spider Killer Odorless Spray is a great all-around pest control option for outdoor use. It balances affordability, effectiveness, and versatility, making it a practical choice for homeowners who want reliable spider control without strong odors or stains.
4. Compare-N-Save Outdoor Insect Control Concentrate
Compare-N-Save Concentrate is a powerful, professional-grade insecticide designed for large outdoor areas. Unlike ready-to-use sprays, this product comes in a concentrated formula that you mix with water, making it highly cost-effective and suitable for long-term pest control. It’s especially popular for treating yards, gardens, and home perimeters.
Key Features
- Concentrated formula (makes up to 176 gallons of spray)
- Covers very large areas (up to 176,000 sq. ft.)
- Contains 7.9% bifenthrin for strong pest control
- Works on spiders, ants, fleas, and many outdoor insects
Why It’s Best For
This product is best for those who need a large-area outdoor solution. If you have a big yard, garden, or multiple outdoor spaces, this concentrate provides excellent value. It’s also ideal for users who prefer a more professional pest-control approach rather than small spray bottles.
Performance & Durability
Compare-N-Save delivers strong and consistent performance thanks to its bifenthrin-based formula, which is known for killing and repelling a wide range of insects, including spiders.
Once applied, it creates a protective barrier that can last for weeks, depending on weather conditions. Many users report noticeable pest reduction after the first application, with continued effectiveness when reapplied regularly.
Pros & Cons
Pros
- Extremely cost-effective for large areas
- Strong, professional-grade insect control
- Versatile for multiple pests and surfaces
Cons
- Requires mixing and a sprayer for application
- Not beginner-friendly compared to ready sprays
- Chemical-based formula
Overall Verdict
Compare-N-Save Concentrate is an excellent choice for homeowners who want maximum coverage and long-term value. While it requires a bit more effort to use, its strength and coverage make it one of the best options for outdoor spider and insect control on larger properties.
5. NatureStop Spider Repellent Outdoor Spray
NatureStop Spider Repellent is a modern, plant-based solution designed specifically for outdoor spider control. Instead of harsh chemicals, it uses natural ingredients to repel spiders effectively while remaining safe for use around homes, patios, and gardens. Its growing popularity comes from combining eco-friendly protection with reliable outdoor performance.
Key Features
- Plant-based, eco-friendly formula
- Designed for patios, decks, and outdoor surfaces
- Ready-to-use spray bottle
- Safe for use around family and pets (when used correctly)
Why It’s Best For
This spray is best for users who want a natural outdoor repellent with modern formulation. It’s especially suitable for areas where chemical sprays may not be preferred, such as around seating areas, garden furniture, or pet zones.
Performance & Durability
NatureStop works primarily as a repellent rather than an instant killer. It creates a scent barrier that discourages spiders from settling or building webs. Natural sprays like this rely on essential oils or plant-based ingredients, which are known to repel spiders without harming them.
However, because it’s chemical-free, its durability is moderate. You may need to reapply it every few days or after rain to maintain strong protection outdoors.
Pros & Cons
Pros
- Eco-friendly and non-toxic formula
- Safe for frequent outdoor use
- Pleasant, mild scent compared to chemicals
Cons
- Doesn’t kill spiders instantly
- Requires frequent reapplication
- Less effective for heavy infestations
Overall Verdict
NatureStop Spider Repellent is a solid choice if you prioritize safety and natural ingredients over maximum strength. While it may not offer long-lasting chemical-level protection, it’s ideal for maintaining spider-free outdoor spaces in a safer and more environmentally friendly way.
6. HARRIS Spider Killer Odorless Formula
The HARRIS Spider Killer Odorless Formula is a powerful, ready-to-use spray designed for both indoor and outdoor pest control. Known for its professional-grade strength, this product targets spiders and a wide range of insects while maintaining a user-friendly, odor-free application. It’s a solid choice for homeowners who want effective results without dealing with strong chemical smells.
Key Features
- Odorless and non-staining formula
- Kills spiders, ants, roaches, and other insects
- Long-lasting residual protection (up to several weeks)
- Ready-to-use spray with wide coverage
Why It’s Best For
This spray is best for those looking for a strong, multi-purpose insect killer that works across different areas of the home exterior. It’s especially useful for treating foundations, garages, outdoor walls, and entry points where spiders are commonly found.
Performance & Durability
HARRIS Spider Killer delivers reliable performance by creating a residual barrier after application. Once dry, it continues to kill spiders that come into contact with treated surfaces. Its long-lasting effect can remain active for weeks, making it a practical option for ongoing outdoor protection. Multi-insect sprays like this are often preferred because they eliminate not only spiders but also other bugs that attract them.
Pros & Cons
Pros
- Effective against multiple types of pests
- No strong odor during or after application
- Long-lasting barrier protection
Cons
- Chemical-based formula
- Not as long-lasting as some premium options
- Requires careful application around pets
Overall Verdict
HARRIS Spider Killer Odorless Formula is a dependable option for homeowners who want strong performance without unpleasant smells. Its ability to handle multiple pests and provide lasting protection makes it a practical and versatile outdoor spider control solution.
7. Sunday Bug Doom Outdoor Insect Repellent Spray
Sunday Bug Doom is a modern, botanically derived insect spray designed for both indoor and outdoor use. It focuses on creating a protective barrier around your home using plant-based ingredients instead of harsh chemicals. This makes it a strong option for homeowners who want effective spider control while maintaining a safer, eco-conscious environment.
Key Features
- Botanically derived formula (chrysanthemum extract + canola oil)
- Works as an outdoor perimeter barrier
- Targets spiders and dozens of other pests
- Ready-to-use spray with no strong odor
Why It’s Best For
This spray is best for those who want a natural yet effective outdoor barrier treatment. It’s ideal for creating a protective zone around doors, windows, patios, and foundations without relying on heavy chemical pesticides.
Performance & Durability
Sunday Bug Doom performs by both killing and repelling insects while forming a barrier around your home. It is effective against spiders and many other pests, helping prevent them from entering treated areas.Its plant-based formula makes it safer than traditional sprays, but it may require periodic reapplication for consistent outdoor protection. Unlike heavy-duty chemical sprays, its strength is balanced with environmental safety.
Pros & Cons
Pros
- Natural, plant-based ingredients
- Works on a wide range of insects
- No harsh chemical smell
- Suitable for indoor and outdoor use
Cons
- Not as long-lasting as strong chemical sprays
- May not target highly dangerous spider species
- Can require more frequent application
Overall Verdict
Sunday Bug Doom Outdoor Spray is a great choice if you want a balance between safety and effectiveness. It may not be the strongest option for severe infestations, but it excels as a natural, everyday solution to keep spiders and other pests away from your outdoor spaces.
8. NatureStop Outdoor Spider Repellent (Long-Lasting Formula)
NatureStop Outdoor Spider Repellent (Long-Lasting version) is designed for homeowners who want extended protection using a safer, plant-based formula. It focuses on repelling spiders and preventing web formation rather than killing instantly. This makes it a great choice for maintaining clean outdoor areas like patios, decks, and garden spaces without relying heavily on harsh chemicals.
Key Features
- Long-lasting plant-based repellent formula
- Designed specifically for outdoor perimeter protection
- Easy-to-use spray application
- Safe for use around family and pets (when used as directed)
Why It’s Best For
This spray is best for those looking for a longer-lasting natural repellent compared to typical essential oil sprays. It’s ideal for maintaining spider-free zones around doors, windows, fences, and outdoor furniture where spiders frequently appear.
Performance & Durability
NatureStop works by creating a protective scent barrier that discourages spiders from entering treated areas. Natural sprays typically rely on essential oils and plant extracts, which are effective for repelling spiders but don’t always kill them instantly. Compared to basic natural sprays, this version offers improved durability, but it may still require reapplication after rain or heavy outdoor exposure to maintain consistent results.
Pros & Cons
Pros
- Safer, plant-based ingredients
- Longer-lasting than many natural repellents
- Easy to apply on outdoor surfaces
Cons
- Repels rather than kills spiders
- Needs reapplication in harsh weather
- Not ideal for heavy infestations
Overall Verdict
NatureStop Long-Lasting Outdoor Repellent is a strong choice for those who want extended natural protection without chemicals. While it may not replace heavy-duty insecticides, it performs well as a preventative solution to keep spiders away from outdoor living spaces.
9. Peppermint Natural Spider Repellent Spray
Peppermint Natural Spider Repellent Spray is a simple yet effective solution for keeping spiders away from outdoor spaces using plant-based ingredients. Instead of killing spiders instantly, it relies on strong essential oil scents—especially peppermint—to create an environment spiders avoid. This makes it a popular choice for those who want a safer and more eco-friendly alternative.
Key Features
- Made with natural peppermint oil and plant-based ingredients
- Safe for use around pets and family (when used properly)
- Pleasant minty scent instead of harsh chemicals
- Easy spray application for outdoor surfaces
Why It’s Best For
This spray is best for people who prefer a chemical-free and safe repellent option. It works well in outdoor areas like patios, balconies, doorways, and garden edges where maintaining a non-toxic environment is important.
Performance & Durability
Peppermint-based sprays work by overwhelming spiders’ sensory systems, making treated areas unattractive for them to stay or build webs. Natural repellents are effective for prevention, but they typically don’t kill spiders and may lose strength faster outdoors due to rain, sunlight, and wind. Because of this, regular reapplication is necessary to maintain a strong protective barrier.
Pros & Cons
Pros
- Natural and eco-friendly formula
- Safe for frequent use around living areas
- Fresh, pleasant scent
Cons
- Does not kill spiders instantly
- Requires frequent reapplication
- Less effective for severe infestations
Overall Verdict
Peppermint Natural Spider Repellent Spray is a great option for those who want a safe, natural way to keep spiders away. While it may not replace strong chemical sprays, it works well as a preventative solution for maintaining clean and spider-free outdoor spaces.
FAQs
What is the best spider killer spray for outdoor use?
The best spray depends on your needs. For long-lasting results, chemical sprays like Miss Muffet’s Revenge are highly effective. If you prefer safer options, natural repellents like peppermint-based sprays work well for prevention but may require frequent application.
Do outdoor spider sprays really work?
Yes, outdoor spider sprays can be very effective when used correctly. Chemical sprays kill spiders and create a protective barrier, while natural sprays repel them. Regular application around entry points and outdoor areas significantly reduces spider activity over time.
How often should I apply spider spray outdoors?
It depends on the product type. Chemical sprays can last several weeks or even months, while natural repellents may need reapplication every few days or after rain. Always follow the manufacturer’s instructions for best results.
Are spider sprays safe for pets and children?
Many sprays are safe when used as directed, but caution is always recommended. Natural, plant-based sprays are generally safer, while chemical sprays should be kept out of reach until dry. Always check the label for safety guidelines before use.
Where should I spray to keep spiders away?
Focus on outdoor areas where spiders are likely to enter or hide, such as doors, windows, corners, cracks, garages, and patio furniture. Creating a barrier around the home’s perimeter is one of the most effective ways to prevent spiders.
