Leek Allium porrum 'Carlton' (PBR)
ABOUT
Allium porrum 'Carlton' (PBR), commonly known as the leek, is a vegetable plant that boasts a distinctive appearance. It develops a long, cylindrical stalk, which is actually a bundle of leaf sheaths tightly wrapped together. This part of the leek is typically white at the base, transitioning to a lovely green as it moves towards the top. The leaves of the leek grow directly from the stalk, arching outward, and are a darker green, with a flat and broad structure that resembles a large blade of grass. As the plant matures, it may produce a tall stalk from the center, on which small, globe-like flowers may form in a cluster, although leeks are primarily cultivated for their stalks rather than for flowering. Overall, the leek has a sleek, layered look, with a two-toned color scheme that adds a fresh touch to vegetable gardens.
About this plant
NamesFamily
Amaryllidaceae.
Synonyms
Leek, Carlton Leek.
Common names
Allium porrum 'Carlton' (PBR).
ToxicityTo humans
The Allium porrum 'Carlton' (PBR) is commonly known as leek. Leeks are not toxic to humans and are widely consumed as a vegetable. They are part of the onion family and are used in many culinary dishes for their flavor. There are no common toxic effects associated with eating leeks for most individuals. However, people with a known allergy to other members of the Allium family, such as onions and garlic, could potentially have an allergic reaction to leeks.
To pets
Leek, the common name for Allium porrum 'Carlton' (PBR), is toxic to pets, including dogs and cats. It contains organosulfur compounds that can cause oxidative damage to red blood cells, leading to hemolysis and resulting in hemolytic anemia. Symptoms of poisoning in pets can include vomiting, diarrhea, abdominal pain, loss of appetite, weakness, and pale gums. In severe cases, ingestion can lead to difficulty breathing, lethargy, and even collapse. If a pet ingests leeks, immediate veterinary attention is recommended.
CharacteristicsLife cycle
Biennials
Foliage type
Deciduous
Color of leaves
Green
Height
1-3 feet (30-90 cm)
Spread
0-1 foot (0-30 cm)
Plant type
Bulb
Hardiness zones
5
Native area
Europe
Benefits
General Benefits- Culinary Use: Often used in soups, stews, and other culinary dishes for its subtle onion-like flavor.
- Nutritional Value: Provides essential vitamins and minerals such as vitamin A, vitamin C, and iron.
- Easy to Grow: Known for being a hardy vegetable that can be grown in a variety of climates and soil types.
- Attracts Pollinators: Flowers can attract beneficial insects such as bees and butterflies to the garden.
- Ornamental Value: Adds aesthetic appeal to gardens with its tall, leafy green stalks and white bulbous base.
- Companion Planting: Can be planted alongside other vegetables to deter pests and improve overall garden health.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- As part of a natural dye: The leaves of the leek can be used to produce a subtle green dye for textiles or crafting projects.
- Insect repellent: Leek plants can repel certain insects, making them useful in companion planting alongside sensitive vegetables or flowers.
- Crafting biodegradable pots: The sturdy, fibrous structure of leek leaves can be used to create small biodegradable seedling pots.
- As a natural fertilizer: When composted, leek scraps release nutrients back into the soil, enriching it for other plants.
- In floral arrangements: The tall, upright stalks and delicate white flowers of Allium porrum can add structure to floral displays.
- Decorative garden borders: The architectural form of leeks can be used to create defined lines within garden bed designs.
- As part of an educational project: Growing leeks can be used to teach children about plant biology and vegetable gardening.
- In vegetable sculptures: Leek stalks can be carved into shapes and figures for artistic presentations or food competitions.
- Culinary garnish: The flower of the leek plant can be used as an edible garnish in gourmet dishes.
- As an eco-friendly cleaner: Crushed leek leaves can be added to vinegar to create a natural cleaning agent with mild abrasive properties.
Interesting Facts
Feng ShuiThe leek is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe leek is not used in astrology practice.
Plant Symbolism- Humility - The leek, as a simple and often overlooked vegetable, symbolizes humility in its unassuming presence in the garden and kitchen.
- Persistence - Known for its ability to grow in difficult conditions and overwinter in the ground, the leek represents persistence and resilience.
- Protection - In Welsh culture, the leek is a symbol of protection, famously worn by soldiers to guard themselves against harm in battle.
WaterLeeks, commonly known as 'Carlton,' require consistent moisture to develop well, so water them thoroughly whenever the top inch of soil feels dry to the touch. Typically, this may be about once or twice a week, depending on the weather conditions and soil type. During dry spells, increase watering to maintain even soil moisture. Each leek plant should receive roughly 1-1.5 gallons of water per week to ensure adequate hydration for steady growth, but be careful not to overwater as standing water can promote disease.
LightLeeks, most commonly known as 'Carlton,' thrive best in a location that receives full sun, meaning at least six hours of direct sunlight per day. Choose a spot in the garden that is well-exposed to sunlight, as ample sunshine encourages strong and healthy growth. These plants can tolerate light shade, but for optimum results, ensure that they are positioned in a bright area where light is abundant.
TemperatureLeeks such as the 'Carlton' variety tolerate a wide range of temperatures but grow optimally between 60°F and 70°F. They can survive in temperatures as low as 35°F, making them suitable for early spring and late autumn plantings. However, it's best to avoid exposing leeks to temperatures above 75°F for extended periods, as high heat can negatively affect their growth and flavor.
PruningPruning is not typically required for 'Carlton' leeks, but it's beneficial to remove any yellowing leaves to maintain plant health and appearance. Pruning, in the form of trimming, may occasionally be performed to neaten the plants or prepare them for harvest. The best time for any such minimal pruning is during the active growing season, just before harvesting or as needed to tidy the plants.
CleaningAs needed
SoilLeek 'Carlton' thrives best in well-drained soil rich in organic matter with a pH of 6.0 to 7.0. A soil mix comprising equal parts garden soil, compost, and perlite or sand can be ideal to ensure proper drainage and fertility.
RepottingLeeks like 'Carlton' are typically not repotted as they are biennials grown from seed each year. Transplant leek seedlings once they reach pencil thickness, usually not requiring further repotting.
Humidity & MistingLeek 'Carlton' tolerates a wide range of humidity levels typical of outdoor environments and does not require specific humidity conditions when grown outdoors.
Suitable locationsIndoor
Provide ample sunlight and rotate for even growth.
Outdoor
Plant in full sun, fertile soil, space 6 inches apart.
Hardiness zone
5-9 USDA
Life cycleAllium porrum 'Carlton' (PBR), commonly known as the leek, begins its life cycle when seeds are sown in early spring. The seedlings emerge and require a period of growth in which they are thinned and eventually transplanted to give them sufficient space. As the plants mature, they develop long white shafts by blanching, a process that involves piling soil around the stems to protect them from sunlight. Throughout the summer, the leeks continue to grow, with their leaves becoming darker green and the stalks thickening. Heading into the fall, the leeks reach maturity and can be harvested by lifting them from the soil; they are cold-tolerant and can remain in the ground until needed. Finally, leeks that are not picked will eventually flower and set seed the following season if left unharvested, completing their life cycle.
PropogationPropogation time
Spring to Summer
The Allium porrum 'Carlton', commonly known as the leek 'Carlton', is typically propagated through seed. The optimal time to sow leek seeds is late winter to early spring, aiming for approximately 8-10 weeks before the last expected frost date. The seeding process involves placing the tiny, black seeds into trays or pots filled with moist seed starting mix, covering them lightly with a layer of soil. Seedlings require a good light source; hence, placing them near a bright window or under grow lights is beneficial. When seedlings reach about 6 inches in height and have developed a pencil-thick stem, they can be transplanted into the garden, spaced approximately 6 inches apart in rows that are 12 inches apart. Care should be taken to plant them deeply, allowing the white stem portion to blanch and become tender.
