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Walnuts (Juglans)
Walnuts are most often commercially cultivated for the nuts encased in their fruits, but also for timber. The edible nuts can be eaten both raw and in baked goods. The shells are often used in various industrial products, and the wood of walnuts is valued for its use in high-quality furniture making and carving.
Lifespan
Perennial
Plant Type
Tree
Key Facts About Walnuts
Feedback
Attributes of Walnuts
Leaf type
Deciduous
Ideal Temperature
0 - 32 ℃
Scientific Classification of Walnuts
Distribution of Walnuts
Feedback
Distribution Map of Walnuts
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
How to Grow and Care for Walnuts
Feedback
The genus walnuts, also known as walnuts, has care requirements that include fertile, well-drained soil, full sun exposure, and moderate watering. They ideally thrive in cooler climates. Common challenges for walnuts encompass walnut blight, aphids, and sensitivity to over watering or poor soil conditions. Seasonal considerations involve less watering during winters and a watchful eye for pests in spring. This genus also appreciates a layer of mulch to keep roots cool and moist during warmer months.
How to Water Walnuts?
What Are the Sunlight Requirements for Walnuts?
How to Propagate Walnuts?
How to Plant Walnuts?
Exploring the Walnuts Plants
Feedback
8 most common species：
Black walnut
Black walnut is a large riparian zone tree native to North America. It is cultivated for nutritious walnuts and high-quality dark timber. Black walnut produces juglone, a compound that inhibits the growth of other plants in the black walnut tree’s proximity, so it may be undesirable near lawns and gardens. It is susceptible to a Thousand Cankers Disease.
English walnut
The english walnut is a large deciduous tree. There are many superstitious beliefs tied to it, one of which originates from the island of Skopelos: people believe that the planter of a walnut tree will die once the english walnut grows tall enough to see the sea.
Northern california black walnut
Northern california black walnut (*Juglans hindsii*) is also called the northern california black walnut. The wood of this species is known as “Claro Walnut” and is used to manufacture fine furniture such as bookcases, tables, and cabinets.
Butternut
Butternut (Juglans cinerea) is a species of walnut that is native to America. It is a deciduous tree that can grow to heights of 18 to 24 m with a rounded, wide-spreading canopy. In fall, it produces sweet oily butternuts that are delicious to eat. However, it is susceptible to fungal canker which has threatened the species in forests and natural settings.
Andean walnut
Andean walnut is a tall-growing tree. It is a rich producer of tannins that make its fruits, bark, and leaves good sources of colored dyes. Its wood is prized for use in high-quality and decorative carpentry. This tree is increasingly rare in the wild and is classed as “Endangered” on the IUCN red list of threatened species.
Manchurian walnut
Manchurian walnut (Juglans mandshurica) is a deciduous hardwood tree that can grow as tall as 23 m. Native to Asia it blooms in spring with both male and female flowers. Edible nuts ripen from fall to fall. Squirrels and other small animals feed on the nuts. Thrives in full sun and prefers moist rich soils.
California Black Walnut
The california Black Walnut (*Juglans californica*) grows naturally only in southern California, though it is cultivated elsewhere as well. It can grow in the form of a tree or shrub. Oftentimes it is cultivated for its rootstock, onto which English Walnut trees can be grafted. It is also becoming a popular ornamental tree, especially in landscaping and natural landscaping circles.
Arizona walnut
Juglans major literally means larger walnut. Also known as the arizona walnut, this tree can grow up to 15 m tall and belongs to the black walnut family. This small nut is edible but has a thick shell.
All Species of Walnuts
Black walnut
Black walnut
Black walnut is a large riparian zone tree native to North America. It is cultivated for nutritious walnuts and high-quality dark timber. Black walnut produces juglone, a compound that inhibits the growth of other plants in the black walnut tree’s proximity, so it may be undesirable near lawns and gardens. It is susceptible to a Thousand Cankers Disease.
English walnut
English walnut
The english walnut is a large deciduous tree. There are many superstitious beliefs tied to it, one of which originates from the island of Skopelos: people believe that the planter of a walnut tree will die once the english walnut grows tall enough to see the sea.
Northern california black walnut
Northern california black walnut
Northern california black walnut (*Juglans hindsii*) is also called the northern california black walnut. The wood of this species is known as “Claro Walnut” and is used to manufacture fine furniture such as bookcases, tables, and cabinets.
Butternut
Butternut
Butternut (Juglans cinerea) is a species of walnut that is native to America. It is a deciduous tree that can grow to heights of 18 to 24 m with a rounded, wide-spreading canopy. In fall, it produces sweet oily butternuts that are delicious to eat. However, it is susceptible to fungal canker which has threatened the species in forests and natural settings.
Andean walnut
Andean walnut
Andean walnut is a tall-growing tree. It is a rich producer of tannins that make its fruits, bark, and leaves good sources of colored dyes. Its wood is prized for use in high-quality and decorative carpentry. This tree is increasingly rare in the wild and is classed as “Endangered” on the IUCN red list of threatened species.
Manchurian walnut
Manchurian walnut
Manchurian walnut (Juglans mandshurica) is a deciduous hardwood tree that can grow as tall as 23 m. Native to Asia it blooms in spring with both male and female flowers. Edible nuts ripen from fall to fall. Squirrels and other small animals feed on the nuts. Thrives in full sun and prefers moist rich soils.
California Black Walnut
California Black Walnut
The california Black Walnut (*Juglans californica*) grows naturally only in southern California, though it is cultivated elsewhere as well. It can grow in the form of a tree or shrub. Oftentimes it is cultivated for its rootstock, onto which English Walnut trees can be grafted. It is also becoming a popular ornamental tree, especially in landscaping and natural landscaping circles.
Arizona walnut
Arizona walnut
Juglans major literally means larger walnut. Also known as the arizona walnut, this tree can grow up to 15 m tall and belongs to the black walnut family. This small nut is edible but has a thick shell.
Texas black walnut
Texas black walnut
The texas black walnut (Juglans microcarpa) grows in North America along the streams of Texas, Oklahoma, New Mexico and Kansas. The plant produces nuts and very tiny seeds that are edible.
Guatemala walnut
Guatemala walnut
Guatemala walnut is a deciduous tree recognized for its large, pinnate leaves that offer a lush canopy. This tree produces distinctive spherical nuts encased in a husk, drawing various wildlife. Preferring deep, fertile soils, guatemala walnut thrives in temperate climates and is valued for its ornamental shade and high-quality wood.
Japanese walnut
Japanese walnut
The leaves are pinnate, 50 to 90 cm long, with 11-17 leaflets, each leaflet 7 to 16 cm long and 3 to 5 cm broad. The male flowers are inconspicuous yellow-green catkins produced in spring at the same time as the new leaves appear. The fruit is a nut, produced in bunches of 4-10 together; the nut is spherical, 3 to 5 cm long and broad, surrounded by a green husk before maturity in mid autumn.
More Popular Genus
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Dracaena
Dracaena are popular house plants that are easy to grow. They can tolerate low-light conditions and require little watering. Their leaves range from variegated to dark green. Their characteristic traits include woody stems that grow slowly but offer a striking appearance for small spaces such as apartments or offices.
Fig trees
Fig trees have been cultivated in many regions for their fruits, particularly the common fig, F. carica. Most of the species have edible fruits, although the common fig is the only one of commercial value. Fig trees are also important food sources for wildlife in the tropics, including monkeys, bats, and insects.
Brambles
Brambles are members of the rose family, and there are hundreds of different types to be found throughout the European countryside. They have been culturally significant for centuries; Christian folklore stories hold that when the devil was thrown from heaven, he landed on a bramble bush. Their vigorous growth habit can tangle into native plants and take over.
Maples
The popular tree family known as maples change the color of their leaves in the fall. Many cultural traditions encourage people to watch the colors change, such as momijigari in Japan. Maples popular options for bonsai art. Alternately, their sap is used to create maple syrup.
Prunus
Prunus is a genus of flowering fruit trees that includes almonds, cherries, plums, peaches, nectarines, and apricots. These are often known as "stone fruits" because their pits are large seeds or "stones." When prunus trees are damaged, they exhibit "gummosis," a condition in which the tree's gum (similar to sap) is secreted to the bark to help heal external wounds.
Nightshades
Nightshades is a large and diverse genus of plants, with more than 1500 different types worldwide. This genus incorporates both important staple food crops like tomato, potato, and eggplant, but also dangerous poisonous plants from the nightshade family. The name was coined by Pliny the Elder almost two thousand years ago.
Roses
Most species of roses are shrubs or climbing plants that have showy flowers and sharp thorns. They are commonly cultivated for cut flowers or as ornamental plants in gardens due to their attractive appearance, pleasant fragrance, and cultural significance in many countries. The rose hips (fruits) can also be used in jams and teas.
Oaks
Oaks are among the world's longest-lived trees, sometimes growing for over 1,000 years! The oldest known oak tree is in the southern United States and is over 1,500 years old. Oaks produce an exceedingly popular type of wood which is used to make different products, from furniture and flooring to wine barrels and even cosmetic creams.
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About
Key Facts
Distribution
How To Care
All Species
More Genus
Walnuts
Juglans
Walnuts are most often commercially cultivated for the nuts encased in their fruits, but also for timber. The edible nuts can be eaten both raw and in baked goods. The shells are often used in various industrial products, and the wood of walnuts is valued for its use in high-quality furniture making and carving.
Lifespan
Perennial
Plant Type
Tree
Key Facts About Walnuts
Feedback
Attributes of Walnuts
Leaf type
Deciduous
Ideal Temperature
0 - 32 ℃
Scientific Classification of Walnuts
Distribution of Walnuts
Feedback
Distribution Map of Walnuts
Native
Cultivated
Invasive
Potentially invasive
Exotic
No species reported
How to Grow and Care for Walnuts
Feedback
The genus walnuts, also known as walnuts, has care requirements that include fertile, well-drained soil, full sun exposure, and moderate watering. They ideally thrive in cooler climates. Common challenges for walnuts encompass walnut blight, aphids, and sensitivity to over watering or poor soil conditions. Seasonal considerations involve less watering during winters and a watchful eye for pests in spring. This genus also appreciates a layer of mulch to keep roots cool and moist during warmer months.
How to Water Walnuts?
What Are the Sunlight Requirements for Walnuts?
How to Propagate Walnuts?
How to Plant Walnuts?
Exploring the Walnuts Plants
Feedback
8 most common species：
Black walnut
Black walnut is a large riparian zone tree native to North America. It is cultivated for nutritious walnuts and high-quality dark timber. Black walnut produces juglone, a compound that inhibits the growth of other plants in the black walnut tree’s proximity, so it may be undesirable near lawns and gardens. It is susceptible to a Thousand Cankers Disease.
English walnut
The english walnut is a large deciduous tree. There are many superstitious beliefs tied to it, one of which originates from the island of Skopelos: people believe that the planter of a walnut tree will die once the english walnut grows tall enough to see the sea.
Northern california black walnut
Northern california black walnut (*Juglans hindsii*) is also called the northern california black walnut. The wood of this species is known as “Claro Walnut” and is used to manufacture fine furniture such as bookcases, tables, and cabinets.
Butternut
Butternut (Juglans cinerea) is a species of walnut that is native to America. It is a deciduous tree that can grow to heights of 18 to 24 m with a rounded, wide-spreading canopy. In fall, it produces sweet oily butternuts that are delicious to eat. However, it is susceptible to fungal canker which has threatened the species in forests and natural settings.
Show More Species
All Species of Walnuts
More Popular Genus
Feedback
Dracaena
Dracaena are popular house plants that are easy to grow. They can tolerate low-light conditions and require little watering. Their leaves range from variegated to dark green. Their characteristic traits include woody stems that grow slowly but offer a striking appearance for small spaces such as apartments or offices.
Fig trees
Fig trees have been cultivated in many regions for their fruits, particularly the common fig, F. carica. Most of the species have edible fruits, although the common fig is the only one of commercial value. Fig trees are also important food sources for wildlife in the tropics, including monkeys, bats, and insects.
Brambles
Brambles are members of the rose family, and there are hundreds of different types to be found throughout the European countryside. They have been culturally significant for centuries; Christian folklore stories hold that when the devil was thrown from heaven, he landed on a bramble bush. Their vigorous growth habit can tangle into native plants and take over.
Maples
The popular tree family known as maples change the color of their leaves in the fall. Many cultural traditions encourage people to watch the colors change, such as momijigari in Japan. Maples popular options for bonsai art. Alternately, their sap is used to create maple syrup.
Prunus
Prunus is a genus of flowering fruit trees that includes almonds, cherries, plums, peaches, nectarines, and apricots. These are often known as "stone fruits" because their pits are large seeds or "stones." When prunus trees are damaged, they exhibit "gummosis," a condition in which the tree's gum (similar to sap) is secreted to the bark to help heal external wounds.
Nightshades
Nightshades is a large and diverse genus of plants, with more than 1500 different types worldwide. This genus incorporates both important staple food crops like tomato, potato, and eggplant, but also dangerous poisonous plants from the nightshade family. The name was coined by Pliny the Elder almost two thousand years ago.
Roses
Most species of roses are shrubs or climbing plants that have showy flowers and sharp thorns. They are commonly cultivated for cut flowers or as ornamental plants in gardens due to their attractive appearance, pleasant fragrance, and cultural significance in many countries. The rose hips (fruits) can also be used in jams and teas.
Oaks
Oaks are among the world's longest-lived trees, sometimes growing for over 1,000 years! The oldest known oak tree is in the southern United States and is over 1,500 years old. Oaks produce an exceedingly popular type of wood which is used to make different products, from furniture and flooring to wine barrels and even cosmetic creams.
Your Ultimate Guide to Plants
Identify grow and nurture the better way!
17,000 local species +400,000 global species studied
Nearly 5 years of research
80+ scholars in botany and gardening
Continue reading in our app - it's better
A database of 400000+ plants
unlimited guides at your fingertips...
unlimited guides at your fingertips...
