An herb is a plant that withers and dies after flowering, it lacks woody tissue , but has a medicine, seasoning scent. Herbs can be a wonderful addition to any spell or magickal working.
By nature, most herbs have certain properties that will help enhance the outcome of your intention. While it isn’t always necessary to use specific herbs in your witchcraft spells and potions, sprinkling a small pinch of corresponding herbs into the candle flame can lend more power to your spell.
You can also leave small dishes of herbs around your home to neutralize negative influences, promote peace and tranquility, and encourage beneficial energy.
Or consider making small charm bags with special combinations of herbs to further your spells after you close your circle.
Here are some common household herbs that can be easily obtained and used in your spells or magickal workings:

Basil – Is regarded as a love token. It is wonderful for neutralizing and repelling negative energy. Use it in your healing spells, or sprinkle it at the threshold to your home to keep away unwanted influences. Basil can also be used in prosperity spells to encourage abundance and positive outcomes.

Bay leaves – can help you to strengthen your psychic abilities, repel negativity, and increase your personal power. Use it in spells to open your psychic awareness, promote prophetic dreams, and increase your courage in any undertaking.

Cinnamon – is a multi-purpose herb that can be used in nearly any type of spell or magickal work. Typically it is known for its prosperity-attracting properties, but you can also use it for protection, enhancing spiritual awareness, and encouraging healing.

Cloves - To ensure that a friendship lasts for a long time, some cloves are sewn up in two little bags, each friend carries one at all times.

Fennel seed – is even more powerful at repelling negativity in all forms. Use it in your banishing spells or leave small dishes of it in the main areas of your home to neutralize negativity.

Lavender – flowers are wonderful for calling in positive energy and repelling negative energy. They have a calming scent that can instantly make you feel more relaxed and lighthearted, which makes them great for healing spells, love spells, and fertility spells. You can also use them to call in positive energy in any kind of magickal working.

Peppermint – is great for neutralizing negativity, and encouraging healing, love, and serenity in the home.

Sage – is wonderful for clearing away negativity also. It has cleansing properties that can be helpful in house-clearing rituals. You can purchase sage "sticks," which are small bundles of dried sage leaves tied together, which you can light and allow the smoke to "smudge" away any negativity in your home, or any other location.

Sesame seeds – attract success and abundance. Place them anywhere you wish to attract more prosperity, whether at home or work. You can also carry a small pouch of them when going to a job interview, or starting your own business.