Matricaria occidentalis (Valley Mayweed)

Scientific Name

Matricaria occidentalis Greene

Common Names

Valley Mayweed

Synonyms

Chamomilla occidentalis

Scientific Classification

Family: Asteraceae
Subfamily: Asteroideae
Tribe: Anthemideae
Subtribe: Matricariinae
Genus: Matricaria

Flower

Color: Yellowish-green
Bloom Time: March to September

Description

Matricaria occidentalis is an annual plant with stem either branching or below the corymbose summit, up to 28 inches (70 cm) tall. Not strongly scented with flowerheads up to 0.6 inch (1.5 cm) in diameter, conical in shape and greenish yellow in color.

Matricaria occidentalis - Valley Mayweed
Photo via calphotos.berkeley.edu

Hardiness

It is grown as an annual plant, so it has no USDA hardiness zone.

How to Grow and Care

You can grow Chamomile herb in USDA plant hardiness zones 3 to 9. Chamomile grows best in cool conditions and should be planted in part shade, but will also grow full sun. The soil should be dry. Once your Chamomile is established, it needs very little care. Like most herbs, it grows best when it is not fussed over. Too much fertilizer will result in lots of weakly flavored foliage and few flowers. Chamomile is drought tolerant and only needs to be watered in times of prolonged drought.

Plant Chamomile in the spring from either seeds or plants. It's easier to establish Chamomile herb in your garden from plants or divisions than from seeds, but growing Chamomile from seed is also relatively easy.

For the most part, Chamomile is not affected by many pests. It is often recommended as a companion plant to plant in the vegetable garden as its strong scent often keeps pests away… – See more at: How to Grow and Care for Chamomile Herb

Origin

Native to North America.

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