Top 20 Most Common Weeds in Greece

Greece's warm, Mediterranean climate provides an ideal environment for a variety of garden weeds to flourish. With extended sunny periods and mild winters, weeds like Silverleaf nightshade, Common purslane, and Sun spurge commonly infest gardens, challenging green-thumbed enthusiasts with their persistent growth. These pervasive weeds demand consistent management efforts to prevent them from overtaking desired flora in Greece’s picturesque landscapes.

Most Common Weeds

1. Silverleaf nightshade

Silverleaf nightshade (Solanum elaeagnifolium) is a common weed that grows throughout North America, South America, and Africa. In South Africa, it is called "Satan's bush". Ingestion of silverleaf nightshade is thought to be toxic to horses.

2. Common purslane

Portulaca oleracea, colloquially known as common purslane, is an annual succulent species with reddish stems and tiny yellow, five-petal flowers. It is used for culinary purposes in various parts of the world, most often raw, in salads. Common purslane is also a good companion plant for crops that thrive in moist soils.

Growth Rate:

Rapid

3. Pokeweed

Although its berries look juicy and tempting, the fruits and the root of pokeweed are toxic and should not be eaten. Pokeweed is considered a pest species by farmers but is nevertheless often grown as an ornamental plant. Its berries can be made into pokeberry ink as well.

Growth Rate:

Rapid

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4. Sun spurge

Sun spurge (Euphorbia helioscopia) is a winter annual that grows along the ground in a variety of locations from gardens to wastelands. It features distinctive red colored stems with toothed leaves that emit a toxic milky sap when cut or torn. Pale yellow flowers bloom from spring to summer and give way to fruit. This plant is considered a weed.

5. Mouse Barley

Mouse Barley is not an actual cereal grain as its name implies, but instead is a species of grass. It is an important crop in pastures and can provide significant nutrition for foraging livestock. Mouse Barley can grow to 30 cm in height.

6. Pellitory of the wall

Pellitory of the wall (Parietaria judaica) is a species of flowering plant that is native to Europe, North Africa and parts of west Asia. It is an introduced species elsewhere in the world and is widely considered a weed. It proliferates in disturbed areas and is sometimes known as “asthma weed” because its pollen is an allergen for many people.

7. Field bindweed

Field bindweed (*Convolvulus arvensis*) is a native Eurasian plant related to morning glory. It is considered an invasive species in non-native areas because it competes with other plants for sunlight and moisture. Field bindweed is very hard to eradicate because its taproots grow so deep, and its seeds can remain viable for decades.

Growth Rate:

Rapid

8. Common salsify

Common salsify (Tragopogon porrifolius) is an edible flower and root native to Europe and Africa. Common salsify is also called the oyster plant and the vegetable oyster. This plant can be grown alongside parsnips and carrots and requires the same type of planting and growing conditions.

Growth Rate:

Moderate

9. Tapa cloth tree

Another name for tapa cloth tree (Broussonetia papyrifera) is paper mulberry. Ancient Austronesian peoples used the inner bark of tapa cloth tree to make clothing, a practice that continues among some Pacific peoples. This inner bark is also used to make high-quality paper in China and Japan.

Growth Rate:

Rapid

10. Yellow horned poppy

Yellow horned poppy (Glaucium flavum) is a perennial wildflower that will grow from 30 to 61 cm tall. In mid-spring to early summer, it blooms bright golden-yellow flowers that are 5 cm wide. Prefers full sun and can tolerate drought and seaside locations. Often found growing among sand dunes on beaches. The seeds have been used to make soap.

11. Common sowthistle

Common sowthistle is a common weed originated in Europe and West Asia. Alongside many sister species that hard to distinguish, it is considered to be an invasive plant in many parts of the world. Its leaves with some bitter taste are editable either green as a part of a salad or cooked in various ways.

12. Prickly lettuce

Prickly lettuce, in spite of its appearance, is the closest wild relative of cultivated lettuce. Even though it is widely considered a weed, it can be used in the kitchen. Young leaves of prickly lettuce are edible and the bitter milky latex can also be made into a condiment or to add flavor to salads. Consuming in large quantities could cause digestive upsets.

13. Lambsquarters

Lambsquarters has many other names, including pigweed, goosefoot, and bacon weed. This plant seems to appear out of nowhere and is considered by many to be a pesky weed. However, the greens of this plant are edible, can be prepared similar to spinach, and are packed with nutrients.

Growth Rate:

Rapid

14. Black nightshade

Black nightshade (Solanum nigrum) is a highly toxic plant and caution should be exercised around this plant. It's said that black nightshade fruits can technically be consumed if they are fully ripe and properly cooked and prepared. Generally though, due to the danger they present, no one would ever want to try to eat this plant.

15. Flaxleaf fleabane

Flaxleaf fleabane (Erigeron bonariensis) is an annual plant with distinctive blue-green foliage. Flaxleaf fleabane is considered a weed. This species is often found growing along concrete cracks in driveways and sidewalks. Tt is also found in pastures, gardens and roadsides. Flaxleaf fleabane produces many seeds, which are dispersed by wind and transported by animals, vehicles and people.

Growth Rate:

Rapid

16. Common St. John's wort

Common St. John's wort (*Hypericum perforatum*) is a plant species that is native to Europe and Central Asia. Common St. John's wort is considered poisonous to livestock and can cause problems for humans if consumed. This dense, fast-growing plant has been introduced to North America and Australia, where it is often viewed as an invasive species.

Growth Rate:

Moderate

17. Milk thistle

Milk thistle (Silybum marianum) is a biennial thistle that has white-mottled blossoms. The common name references the appearance of these blossoms, which look like they have been doused in milk. It grows up to 1.8 m tall. This species is often cultivated as an ornamental plant.

18. Redroot amaranth

While the redroot amaranth is considered a weed in most areas, some parts are edible. Fresh leaves may be included in soups and stews, while the dried leaves can be utilized in tea or ground into flour for bread or used as a thickening agent. Seeds can also be eaten, but the stalks, roots, and older leaves contain toxic substances. Redroot amaranth is sometimes used as fodder for livestock - it is nutritious in small amounts but toxic if too much is fed over a span of several days.

Growth Rate:

Rapid

19. Creeping woodsorrel

Creeping woodsorrel (Oxalis corniculata) is a flowering herb which grows aggressively. The leaves have a lemony flavor and are often made into tea that's rich in vitamin C. However, if ingested in large amounts the oxalic acid for which the genus is named can begin to block the body's calcium absorption.

20. Common plantain

While native to Europe, the common plantain was one of the first plants to reach North America through early European explorers. Native Americans have referred to Plantago major as 'white man's footprint', as it disrupted many local ecosystems by its introduction.

Growth Rate:

Moderate

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Greece's warm Mediterranean climate, diverse habitats, and rich biodiversity are conducive to sustaining various flora, including toxic plants. While the exact prevalence is subject to ongoing research, environmental conditions in Greece do support the existence of species such as , , and , all of which have potentially toxic properties. These plants raise ecological concerns due to their ability to proliferate in the Greek landscape.

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Embracing the warmth and vivid colors, Spring in Greece heralds the rebirth of nature, providing an ideal incubator for fruits to flourish. The period sees the ripening of , known for its succulent burst of flavor. Along with , offering a crisp, refreshing bite, and the celebrated , each a beacon of the season's zestful energy. These fruits are not only a testament to the region's rich agricultural tapestry but also a highlight of local cuisine and festivities.

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In Greece, you can find Oleander, Olive, Paperflower, Common lantana, Chinese hibiscus, and more! There are 50 types of plants in total. Be sure to look out for these common plants when you’re walking on the streets, in parks, or public gardens.