Large bullwort (Ammi majus)

Also known as: False bishop's weed, Laceflower, False queen anne's lace

Queen Anne's Lace, part of the carrot family, is a hermaphroditic plant known for its delicate, white, lace-like flower clusters that are popular in floral arrangements. Dating back to around 200 BC in ancient Egypt, it was utilized for its therapeutic properties in ointments. The plant's flowers are rich in nectar and pollen, making them highly attractive to bees and other pollinators. However, it is toxic to cats, dogs, and horses.

In This Article

Care Tips Water Sunlight Temperature Soil Fertilize Prune Propagation Repotting Toxicity

Attributes of Large bullwort

Lifespan

Annual, Perennial

Plant Type

Herb

Plant Height

80 cm to 1 m

Spread

35 cm to 45 cm

Leaf Color

Green

Flower Size

10 cm

Flower Color

White

Images of Large bullwort

Quickly Identify Large bullwort

Finely divided, feathery leaves resembling carrot family

Tall growth form up to 3 feet (90 cm) in height

Lacey umbels of tiny white flowers in flat-topped clusters

Attracts various pollinators during peak growth

Sensitive to root disturbance; best sown directly in permanent location

Scientific Classification of Large bullwort

Phylum

Vascular plants

Class

Dicotyledons

Order

Apiales

Family

Umbellifers

Genus

Ammi

Species

Large bullwort

Planting and Growing of Large bullwort

Care Difficulty

Easy

Watering Schedule

Every 3 days

Sunlight Requirements

Full sun

Sunshine Duration

4-8 hours

Ideal Temperature

60-75℉

Soil Type

Potting Mix, Peat Mix

Soil pH

6.5-7.5

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 Large bullwort?

The watering amount for Ammi majus should be around 250 milliliters per watering session. This amount ensures that the soil is moist but not waterlogged, preventing root rot. Water thoroughly so that excess drains out of the pot, indicating the soil has received adequate moisture without over-saturation.

What are the symptoms of an underwatered Large bullwort? ›

What should I do if my Large bullwort is not getting enough water? ›

What are the symptoms of an overwatered Large bullwort? ›

How to save an overwatered Large bullwort? ›

What Are the Sunlight Requirements for Large bullwort?

Sunlight Requirements: Full sun, Partial sun

Duration of light: 6 to 8 hours

Ammi majus thrives best in full sun to partial sun, benefiting from at least 6 to 8 hours of light. Such conditions boost its photosynthesis, vitality, and flowering potential.

What kind of light does Ammi majus prefer? ›

How can I ensure Ammi majus gets ideal light conditions? ›

What benefits does Ammi majus gain from optimal lighting? ›

What Is the Ideal Temperature Range for Large bullwort?

Ideal Temperature: 60 ~ 75℉

The ideal temperature range for Ammi majus is between 60°F and 75°F. This range ensures the plant grows healthily, providing the right conditions for photosynthesis and other crucial metabolic processes. Maintaining this temperature also supports the plant's structural development and its ability to resist pests and diseases.

What Soil is Best for Large bullwort?

Soil type: Loam, Sandy soil

Soil PH: 6.5 ~ 7.5

Ammi majus thrives in well-draining soil, which prevents water from pooling around the roots, reducing the risk of root rot and fungal infections. This ensures the plant remains healthy and vibrant throughout its growth. A soil rich in organic matter and nutrients supports vigorous growth and abundant blooms. The nutrients help in the optimal development of foliage and flowers, making Ammi majus a stunning addition to any garden. While the soil should be well-draining, it must also retain sufficient moisture to support the plant’s hydration needs. This balance ensures the plant remains hydrated without oversaturating the roots.

How to Fertilize Large bullwort?

Fertilizer type: Balanced

For Ammi majus, a balanced fertilizer should be used. When applying liquid fertilizer, dilute it to half the strength recommended on the label to avoid nutrient burn. It's crucial to provide about 10 mL per plant every two weeks during the growing season.

How to Prune Large bullwort?

Pruning Time: Spring, Summer

Start by identifying any dead or damaged stems, and cut them back to a point where you see healthy tissue. This encourages new, vigorous growth. Then, focus on removing smaller, weaker shoots to direct the plant’s energy to stronger branches. Finally, trim overgrown sections to shape the plant as desired. Spring and summer are the best times for pruning Ammi majus, as the plant is actively growing. This helps it quickly recover from pruning and encourages more prolific blooming throughout the season.

How to Propagate Large bullwort plant?

Propagate Time: Spring,Late spring

Sow Ammi majus seeds on the surface of compost in seed trays about 6-8 weeks before the last frost. Lightly press the seeds into the soil, but do not cover them completely as they require light to germinate. Keep the soil moist and place the trays in a warm, sunny location.

Once the seedlings are large enough to handle, usually when they have a couple of true leaves, transplant them into individual pots. Handle them gently to prevent damage to the roots. Acclimate them gradually to outdoor conditions by hardening off before planting them in the garden.

For areas with mild spring weather, Ammi majus can be sown directly into prepared garden beds. Ensure the bed is free of weeds and has good soil tilth. Sow seeds thinly, and as the seedlings emerge, thin them to 30 cm apart to give them room to grow.

How to Repot Large bullwort plant?

Repotting frequency: Annually or biennially

You should repot Ammi majus when you notice the roots are circling the pot edges or emerging from the drainage holes. Another signal is when water quickly runs through the pot, suggesting compacted soil. Repotting in spring or autumn gives the plant ample time to establish in the pot before any stress from hot summer or cold winter.

Select a pot that is one to two inches larger in diameter than the current pot. Ensure it has proper drainage holes to prevent waterlogging, which can lead to root rot. A slightly larger pot allows the roots to expand, promoting healthier growth and sturdier plant structure.

Opt for a well-draining, loamy soil mix. This type of soil will retain essential nutrients while preventing root rot by allowing excess water to escape. A balanced soil mix also provides the stability needed for the plant to thrive in its new environment.

Toxicity of Large bullwort

Is Large bullwort toxic to humans?

The large bullwort is a plant that can induce mild to moderate illness in humans. While the plant itself isn't toxic, it can lead to significant skin issues if there is contact with the plant followed by exposure to sunlight. This plant is known to cause photosensitization in humans, meaning that touching the plant and then being exposed to ultraviolet light can result in phytophotodermatitis. This skin condition manifests as varying degrees of inflammation, redness, irritation, rash, erythema, edema, and potential delayed hyperpigmentation. Additionally, consuming the large bullwort can also have harmful effects.

Is Large bullwort toxic to cat?

Large bullwort (Ammi majus) presents a moderate level of toxicity for cats. Ingesting this plant can lead to various distressing symptoms, including oral pain and gastrointestinal disturbances, which in severe instances may necessitate intravenous fluid administration to eliminate the toxins from the body. Its leaves have an unpalatable taste, serving to repel herbivores; however, inquisitive cats may still nibble out of sheer curiosity. Every part of this plant is detrimental.

Is Large bullwort toxic to dog?

Large bullwort poses a mild to severe toxicity risk to dogs due to the presence of calcium oxalates, which are potent irritants to both skin and mucous membranes. Should a dog's skin or eyes come into contact with the plant, especially when it has been cut or damaged, they may suffer from redness, itchiness, blisters, or swelling. Discomfort in the mouth or throat can consequently lead to difficulties in swallowing and a decrease in appetite. Ingesting large bullwort typically results in vomiting and/or diarrhea. In severe cases, dogs might experience breathing difficulties and require immediate veterinary intervention.

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.