Ambrosia maritima — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Ambrosia maritima

Ambrosia Maritima

Updated · 5 observations
ON THIS PLANT

Ambrosia maritima, the sea ragweed, is a species of herb in the family Asteraceae. They have a self-supporting growth form and broad leaves. Individuals can grow to 40 cm (16 in).

A note from PlantMom

Slimleaf bur ragweed is fairly resistant to disease and generally does not suffer from many illnesses. That said, it can still be affected by pests and diseases present in its surroundings. Such infestations or infections are usually mild. Care-wise, this plant requires moderate maintenance. Regular pruning is necessary to keep an attractive appearance and support healthy growth. Applying fertilizer can also encourage flowering. Slimleaf bur ragweed is suitable for anyone with outdoor space, such as a garden or patio, and does not demand extensive plant-care experience. It may need more attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Ambrosia Maritima.

Light

Slimleaf bur ragweed comes from bright, open areas where it does best in full sun. It will tolerate partial sun, yet favors direct sunlight for optimal growth. This plant, which can be annual or biennial, is recognized for its sun-loving nature.

Temperature

Slimleaf bur ragweed comes from tropical areas, where the climate is generally warm and humid. As a result, it is well suited to high temperatures and humidity. It does not tolerate sudden temperature changes and prefers a stable temperature, so it is important to prevent temperature fluctuations indoors. It typically cannot withstand cold and requires warmer conditions to grow. If the temperature falls too low, the plant may stop growing or die.

Fertilizer

Light, frequent applications of fertilizer help Slimleaf bur ragweed develop healthy leaves. Fertilize Slimleaf bur ragweed roughly once a month during the summer. Nitrogen is important for foliage, and adding nitrogen-rich sources helps Slimleaf bur ragweed thrive.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Annual
Genus
Ambrosia
Family
Asteraceae
Hardiness Zone
7-10
Mature Height
30 cm to 61 cm
Mature Spread
30 cm to 49 cm
Leaf Color
Green, Dark Green
Leaf Type
Deciduous
Flower Size
0.20 cm to 0.25 cm
Bloom Time
Late summer, Early fall, Mid fall
Planting Time
Spring, Summer
Harvest Time
Fall
Native Area
Uruguay, Paraguay, Argentina, Bolivia, Peru, Brazil
ALSO KNOWN AS

Other names.

en Coastal Ragweed en Sea Ambrosia
PLATES
Ambrosia maritima leaf
PLATE 01 · leaf
Ambrosia maritima leaf
PLATE 02 · leaf
Ambrosia maritima habit
PLATE 03 · habit
Ambrosia maritima habit
PLATE 04 · habit
Ambrosia maritima other
PLATE 05 · other
ALSO IN THE LIBRARY

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