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Plant Care

Matilija poppy

(Romneya Harv)

Matilija poppy (Romneya Harv) - Image 1 of 10
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Also Known As

Matilija poppy, California tree poppy

About This Plant

Romneya Harv is a species of flowering plant in the poppy family, Papaveraceae, native to southern California and northern Mexico. It is commonly known as Matilija poppy or fried egg plant due to its large, white, crepe-paper like flowers with a bright yellow center resembling a fried egg. The plant can grow up to 6-8 feet in height and spread up to 4-6 feet wide.

Plant Care Instructions

Outdoor Size Range

Height: 6-8 feet (180-240 cm), Spread: 4-6 feet (120-180 cm)

Light Requirements

Matilija poppy requires full sun exposure for at least 6 hours a day. It can tolerate some shade but the plant will not bloom as well.

Humidity Needs

Matilija poppy prefers low humidity environments and can tolerate dry conditions.

Fertilizing Schedule

The plant does not require regular fertilization. However, it can benefit from a balanced fertilizer application in early spring to promote healthy growth and flowering.

Pruning Guidelines

Matilija poppy requires minimal pruning. Deadheading spent flowers can promote continued blooming. The plant can be pruned in late winter or early spring to remove damaged or diseased branches.

Common Pests and Diseases

The plant is generally pest and disease resistant. However, it can be affected by aphids, spider mites, and powdery mildew in humid conditions.

Indoor Size Range

Not suitable for indoor growth

Watering Schedule

The plant is drought tolerant and does not require frequent watering. However, it needs regular watering during its first year of growth to establish a strong root system. After that, it can be watered occasionally.

Temperature Range

The plant is hardy to USDA zones 7-10 and can tolerate temperatures as low as 0°F (-18°C). It prefers warm temperatures and does not tolerate frost.

Growing Season

Matilija poppy blooms in the summer and fall seasons.

Growing Difficulty Level

Matilija poppy is relatively easy to grow and care for. It is drought tolerant and does not require frequent watering. However, it can be difficult to establish in the first year of growth.

USDA Hardiness Zones

7-10

Did You Know?

Matilija poppy is the official flower of the city of Los Angeles, California.

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