Broadleaf wild leek (Allium ampeloprasum)

Also known as: Elephant garlic, Pearl onion

Allium ampeloprasum, a member of the onion genus, produces several well-known vegetables including leeks, pearl onions, salad leek, Persian leek, and elephant garlic.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Broadleaf wild leek

Lifespan

Perennial, Annual

Plant Type

Herb

Plant Height

1.8 m

Spread

30 cm

Leaf Color

Green

Flower Size

4 cm to 12 cm

Flower Color

White Purple Pink

Images of Broadleaf wild leek

Quickly Identify Broadleaf wild leek

Upright, strap-like leaves up to 3 feet (90 cm) tall with a lush green hue.

Flowering stalk produces spherical umbel of small, pink star-shaped flowers.

Leaves are linear, 40-100 cm (1.3-3.2 feet) long, 1.5-2.5 cm (0.6-1 inch) wide.

Thick, cylindrical stem up to 2 inches (5 cm) in diameter, solid and edible.

Basal rosette of leaves with parallel vein pattern, glossy green surface.

Scientific Classification of Broadleaf wild leek

Phylum

Vascular plants

Class

Monocotyledons

Order

Asparagus and allies

Family

Amaryllis

Genus

Onions

Species

Broadleaf wild leek

Planting and Growing of Broadleaf wild leek

Care Difficulty

Easy

Watering Schedule

Every 4 days

Sunlight Requirements

Full sun

Sunshine Duration

4-8 hours

Ideal Temperature

60-77℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6-8

Fertilizer Type

Balanced

Pruning Season

Spring, Summer

Pruning Area

Branches, Leaves

Pruning Frequency

2 times a year

Repotting Season

Spring

Pot Type

Plastic, Ceramic

How to Water Broadleaf wild leek?

For Allium ampeloprasum, the watering amount should be substantial enough to moisten the soil thoroughly but not so much that it becomes waterlogged. Approximately 500 milliliters per watering session is ideal. The goal is to keep the soil consistently moist without allowing the roots to sit in standing water.

What are the symptoms of an underwatered Broadleaf wild leek? ›

What should I do if my Broadleaf wild leek is not getting enough water? ›

What are the symptoms of an overwatered Broadleaf wild leek? ›

How to save an overwatered Broadleaf wild leek? ›

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What Are the Sunlight Requirements for Broadleaf wild leek?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6–8 hours daily

The plant's ideal light range is full sun to partial sun, with benefits including enhanced growth, flavor improvement, increased oil production, and resilience against diseases and pests.

How much sun does Allium ampeloprasum need? ›

What if I don't have enough sunlight? ›

Why is this sunlight important for Allium ampeloprasum? ›

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What Is the Ideal Temperature Range for Broadleaf wild leek?

Ideal Temperature: 60 ~ 77℉

The ideal temperature range for Allium ampeloprasum should be between 60°F and 77°F. This range provides the best conditions for photosynthesis, nutrient uptake, and overall growth. It ensures the plant develops fully without stress.

What Soil is Best for Broadleaf wild leek?

Soil type: Loam, Sandy loam, Sand soil

Soil PH: 6 ~ 8

Allium ampeloprasum thrives in well-draining soil. This characteristic prevents waterlogging, which can lead to root rot. Ensuring good drainage promotes healthy root growth, essential for nutrient uptake and overall plant vigor. Rich, fertile soil with ample organic matter is ideal. This not only provides the essential nutrients necessary for robust growth, but also supports the microbial ecosystem, which in turn aids in nutrient breakdown and availability. A slightly acidic to neutral pH range of 6.0 to 8.0 is preferred. This pH balance facilitates nutrient availability and absorption, helping the plant maintain optimal health and productivity. More About Soil→

How to Fertilize Broadleaf wild leek?

Fertilizer type: Balanced

For Allium ampeloprasum, the recommended fertilizer amount should be modest. When using a liquid fertilizer, mix it at half the strength recommended for general vegetables. For slow-release fertilizers, use around 50 grams per square meter. More About Fertilizing Techniques→

How to Prune Broadleaf wild leek?

Pruning Time: Spring, Summer, Autumn

To prune Allium ampeloprasum, start by removing any dead or yellowing leaves. Use clean, sharp scissors or pruning shears. Trim the leaves down to the base where they meet the healthy green foliage. This prevents the plant from wasting energy on dead growth and helps improve air circulation. After the flowering season, cut the spent flower stalks down to the base. This will direct the plant's energy back into root and leaf growth, ensuring a more vigorous plant in the following season. Be gentle not to damage the healthy stems and leaves during this process. If Allium ampeloprasum becomes overcrowded, usually every few years, divide the clumps in early Spring or Autumn. Dig up the entire plant mass, and gently separate the bulbs, replanting them adequately spaced. This reduces competition for nutrients and promotes flowering. More About Pruning Techniques→

How to Propagate Broadleaf wild leek plant?

Propagate Time: Spring, Late spring, Early spring, Late autumn

Prepare well-draining soil with organic matter. Rich, loose soil helps in promoting root development and provides necessary nutrients for initial growth.

Sow the seeds about 1 centimeter deep in the prepared soil. Ensure they are evenly spread and lightly cover them with soil to maintain moisture and temperature consistency.

Water gently but thoroughly after planting. Keep the soil consistently moist but not waterlogged to prevent seed rot and ensure successful germination.

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How to Repot Broadleaf wild leek plant?

Repotting frequency: Every 2-3 years

Allium ampeloprasum needs repotting when overgrown roots are visible through drainage holes or the plant appears stunted despite regular watering and fertilization. Also, if the soil doesn't retain moisture as it used to or the plant isn't thriving, these are strong indicators that it's time to change its pot.

Select a pot that is 2-3 inches larger in diameter than the current one. This gives roots room to grow without overwhelming the plant. A pot with drainage holes is essential to prevent waterlogging, which can lead to root rot. Ceramic or clay pots are preferred for their breathability.

Opt for well-draining loamy soil, rich in organic matter. This type of soil provides essential nutrients and allows air to reach the roots, promoting healthy growth. Avoid soils that compact easily as they can suffocate roots and inhibit growth.

Toxicity of Broadleaf wild leek

Is Broadleaf wild leek toxic to humans?

Mature broadleaf wild leek emits a potent garlicky and onion-like aroma, which can attract the curiosity of children and even unsuspecting adults. This plant contains sulfides, which are known to lead to various types of gastrointestinal disturbances such as indigestion, nausea, vomiting, and severe colic. Individuals with sensitivity to sulfides, as well as small children or those who have consumed large amounts of this plant, are likely to experience more severe reactions. It is crucial that they receive medical attention without delay. To ensure the safety of all, broadleaf wild leek should be eradicated if it takes root in your garden.

Is Broadleaf wild leek toxic to cat?

Regardless of whether it is consumed in its raw form or after being cooked, the broadleaf wild leek (Allium ampeloprasum) poses a significant risk of severe reactions in cats. While the plant's aroma may deter some felines, those that choose to nibble on any part of it could face various symptoms such as nausea, diarrhea, vomiting, decreased appetite, mouth irritation, lethargy, and excessive drooling. A distinctly strong onion-like odor is frequently noticeable on the breath, as well as in urine and feces. The potential for broadleaf wild leek poisoning can lead to serious health concerns if substantial quantities are ingested, so it is essential to seek veterinary assistance immediately if you suspect your cat has consumed this plant.

Is Broadleaf wild leek toxic to dog?

The broadleaf wild leek, similar to its Allium family members such as onions, garlic, and chives, poses a moderate toxicity risk to dogs. This widely cultivated plant is incorporated into various culinary dishes, providing dogs with frequent opportunities for contact with it. Every part of the broadleaf wild leek contains substances that can harm a dog's red blood cells. Consequently, this can result in symptoms like fatigue, anemia, and discolored urine. Although coma and death can occur, they are uncommon, as a significant quantity must be consumed for such severe effects to manifest.

WARNING

The judgment on toxicity and danger is for reference only. We DO NOT GUARANTEE any accuracy of such judgment. Therefore, you SHALL NOT rely on such judgment. It is IMPORTANT TO SEEK PROFESSIONAL ADVICE in advance when necessary.

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