8 Indoor and Outdoor Plants That Repel Spiders
Using plants to keep insect out of your house and garden is a common practice. However, all the plants claimed to be effective do not work as well as they should. There are certain plants that have been proven to repel spiders, both indoor and outdoor. Here is a list of those most likely to work as spider repellents:
Plants That Keep Spiders Away
Plants having a strong odor, including herbal plants and those having aromatic essential oils, are generally effective in keeping insects away.
What Indoor Plants Repel Spiders
All varieties of basil can ward spiders off due to their aromatic volatile essential oils. The plants are also pretty easy to take care of, needing only regular watering and sunlight to thrive. They are good for keeping other similar insects out as well.
Almost all varieties of mint, including catnip or catmint, spearmint, and pennyroyal, work as spider repellants. Many people claim to have got the best results using peppermint plants. The strong pungent smell of the leaves makes them useful for driving off various insects. You may place whole plants near your doors, windows, and deck to keep spiders out, or you can just sprinkle a few leaves for the same effect.
Spiders do not like the smell of lavender, so keeping a potted lavender plant near your windows, or any other place where they are likely to web up can help deter them. However, it might be toilsome to grow these plants indoors, needing frequent pruning, re-potting, and a lot of sunlight and air.
4. Lemon Balm
Yet another strongly scented plant, lemon balm is also known to get rid of other insects like fruit flies along with spiders. Needing no more than proper well-drained soil and a little sunlight, it is a good option for those who don’t have much sun exposure at home or enough time for an elaborate plant care routine.
Spiders find the seemingly faint smell of rosemary flowers and leaves completely disgusting, tending to steer clear of the plants. Being relatively less cold tolerant, it is often easier to grow rosemary in a pot, and simply keeping the pots near the areas of maximum spider activity can help.
What Outdoor Plants Deter Spiders
The distinct fresh scent of eucalyptus leaves is effective in keeping out various bugs and insects, both from your yard and your house. However, it is not always a feasible option to have a full-grown eucalyptus in your garden. So, the dwarf varieties may be an option, as they make good, reasonably low-maintenance houseplants. Just make sure it gets enough sunlight, and keep the soil moist.
For larger spider infestations, you can just place a few eucalyptus leaves near those areas, or smoke them for better results.
The same grass that is used for producing citronella oil, lemongrass is an excellent way of warding of spiders naturally. The acids present in the grass give it a distinct smell resembling lemons that spiders cannot stand.
Despite being rather hardy, this grass does not do that well in winter, especially if it gets really chilly. For those living in places with cold winters, it may be advisable to grow the grass in containers, so you could just carry them indoors when the weather gets less favorable.
The natural smell of the cedar tree, resulting from the acids present in their leaves and bark, make it useful as a spider repellant. Still, cedar is not one of those trees you can grow in your backyard, even if you have enough space. There are cedar blocks, chips, and mulch available in the market, which you can place strategically around your house, so the earthly scent can keep the spiders out.
Some people claim to have seen positive results with onion and garlic plants due to their pungent smell.
Like with most natural insect repellent measures, you should not take it for granted that you will never spot a single spider if you have these plants. To increase their potency, you may consider combining the plants with the essential oils. For example, if you are growing mint, rosemary, or eucalyptus, apply some corresponding essential oil in the places with the most spider activity.
You may try these remedies only if you are looking to get rid of simple garden spiders. Larger and more dangerous species, like the widow or wolf spiders, should be taken care of with proper insecticides, preferably by a professional pest control service.