Oats (avena sativa)

Calendula (Calendula officinalis) has bright orange daisy-like flowers.

Aloe vera (syn. A. barbadensis) is a succulent commonly grown as a potted plant, notable for its thick, fleshy leaves that contain two distinct medicinal components. Historically, the inner clear gel was used for skin conditions and to promote wound healing (NCCIH), while the bitter yellow sap from the leaf base, often called “bitter aloes,” is a strong laxative.

Borage (Borago officinalis) is a coarse, hairy annual that grows to about 2 ft (60 cm), featuring a succulent stem, large basal leaves, and distinctively bright blue star-shaped flowers. The seeds yield an oil rich in gamma-linolenic acid (GLA), a polyunsaturated fatty acid.

Chickweed (Stellaria media) is a low-growing, sprawling plant, typically reaching about 6 in (15 cm) high. It has softly hairy stems, oval leaves, and small, starlike white flowers. The plant has a mucilaginous quality.

Cleavers is a straggling, square-stemmed annual growing to 4 feet with whorls of lance-shaped leaves, clusters of small white flowers, and small round green fruits covered with hooked prickles. The name refers to the plant's ability to cling (or cleave) to fur or clothing. Common throughout Europe and North America and found in many other temperate regions including Australia, it grows prolifically in gardens and along roadsides. The Greek physician Dioscorides in the 1st century CE noted that shepherds used the stems to make sieves for straining milk.

Lemon (Citrus limon) is a small, evergreen tree with light-green, toothed leaves, fragrant white blossoms, and bright yellow fruit. The fruit is high in vitamin C. Lemon is used to flavor countless foods and beverages.

Neem (Azadirachta indica) is a large evergreen tree with compound leaves and white flowers, known in India as the “village pharmacy”. It is used in traditional and Ayurvedic medicine for skin conditions and stomach ailments; MSK says studies on its safety and effectiveness are lacking.

Rehmannia (Rehmannia glutinosa) is a perennial growing to about 1-2 ft (30-60 cm), with sticky leaves and purple tubular flowers. It is one of the best-known herbs in Traditional Chinese Medicine, where both the raw and the prepared root are used.