Fruits, leaves, roots, seeds.
The pawpaw is an ancient cure for the fever caused by malaria. The juice from yellow leaves must be combined with water and taken for a week, three times per day. The same mixture is effective against jaundice. A similar treatment can be prepared from the green leaves in order to reduce high blood pressure caused by diabetes. It should also be taken three times per day and is said to cure constipation as well. Unripe pawpaw fruits can be used to relieve stomach ulcers. A large immature fruit must be sectioned into cubes, without removing the seeds of the skin. Put the pieces in five bottles of water and wait five days, then sieve the water inside. This effective treatment for intestinal ulcers is taken for two weeks, half a glass three times per day. Immature fruits have a white sap resembling milk that is rich in a bioactive compound named papain. It can be used to treat any kind of external ulcers or wounds. The sap is easily collected by making an incision on the unripe fruit. The compound is also found in the mature fruit, in a lower concentration. A traditional treatment during asthma attacks is to inhale the smoke from dried pawpaw leaves. This method can also be used to prevent attacks, by inhaling the smoke every evening before going to bed. Pawpaw roots are known as an effective remedy against bronchitis and some other respiratory problems. The treatment is also prepared by boiling the roots in water and drinking half of a glass of the liquid three times per day. It also serves as a cure for piles but the dosage is lower and you should only take half a glass twice per day in this case. Against cough, it is enough to just chew the plants root and ingest the juice. Unripe pawpaw fruits are believed to cure male impotence. Two fruits should be cut into cubes, preserving seeds and peel in the same way as the treatment for stomach ulcers. Add about eight bottles of water and boil the fruit parts, then drink half a glass three times every day. Immature pawpaw fruits can be applied directly on external wounds, sores or ulcers. A piece of the fruit must be tied on top of the affected area, four times per day. A few days or weeks will be needed until the wound is completely closed. Consuming the ripe fruit in the meantime is said to speed up the healing process. Internal worms can be eliminated by chewing two tablespoons of ripe fruit seeds twice per day over three days. You must chew them as soon as you wake up and just before going to bed and breakfast and supper should only consist of fruits during the three days. The pawpaw fruits provide a large amount of vitamins A, B and C, all of which are very important for human health. Vitamin A improves eyesight; vitamin B complex maintains muscles and nerves, while vitamin C is a powerful antioxidant that provides an immune system boost.
The pawpaw tree needs wet soil with good drainage but tolerates various soil compositions, including alkaline ones. Pawpaw tree is very difficult to transplant, due to the long taproots. The best way to propagate the pawpaw is to just plant the seed in your garden. After stratification, they can be planted in a cool and wet location, where they will develop at a slow pace. The species is known to propagate itself through root suckers that must be kept under control if you don't want a large number of clones in your garden. Pawpaw trees are quite resilient and are rarely affected by diseases. Rot and decay are encountered sometimes, the usual cause being wet soil due to poor drainage. Most pests and insects don't attack this tree but there are a few that feed on it. Talponia plummeriana, or the pawpaw peduncle borer, consumes the flowers and lowers the production of fruits. The larvae of zebra swallowtail (Eurytides marcellus) consume the leaves but rarely have a real impact on the plant. The pawpaw tree is becoming increasingly popular as a garden and landscape species. The main advantages are the edible fruit, distinctive shape and the low maintenance required after it reaches maturity. One issue of the pawpaw is the very difficult transplanting due to the long taproots and very delicate root hairs. Keeping some wet soil in the root mass can offer some protection but generally only the trees grown in containers are transplanted effectively.
The seeds are known to be poisonous due to the presence of a toxic alkaloid compound. Leaves can affect the skin of sensitive people on contact, leading to dermatitis. In very rare cases, dermatitis appears after touching the fruits as well.