Plant Profile

Ageratum houstonianum (Flossflower, Mexican Ageratum)

Ageratum is an annual low growing plants reaching maximum 30 cm in height. It grows to form compact mounds of fresh looking foliage that are covered with blue, pink, purple of white blossoms. The plant can grow in a partial shade. Perfect container plant for balconies.

Landscape Information
Botanical Description
Horticulture Management

By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
By Kurt Stüber [1] [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
By Magnus Manske (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/2.5-2.0-1.0)], via Wikimedia Commons
By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

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French Name: Agératum

Pronunciation: adge-jur-RAY-tum hoos-toe-nee-AY-num
Plant type: Groundcover
Origin: Mexico
Heat Zones: 1 to 12

Hardiness Zones: 5 to 10
Uses: Border Plant, Mass Planting, Indoor, Container, Cut Flowers / Arrangements, Ground cover
Size/Shape

Growth Rate: Moderate

Tree Shape: Round

Height at Maturity: Less than 0.5 m

Spread at Maturity: Less than 50 cm

Time to Ultimate Height: 1 Year
Companion Plants: Yellow marigolds, pink begonias

By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
By Kurt Stüber [1] [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
By Magnus Manske (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/2.5-2.0-1.0)], via Wikimedia Commons
By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

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Foliage

Leaf Arrangement : Alternate

Leaf Venation: Reticualte

Leaf Type: Simple

Leaf Blade: 5 - 10 cm

Leaf Shape: Orbiculate

Leaf Margins: Dentate

Leaf Texture: Medium

Leaf Scent: No Fragance

Color(growing season): Green

Color(changing season): Green
Flower

Flower Showiness: Yes

Flower Size Range: 0 - 1.5

Flower Type: Raceme

Flower Sexuality: Monoecious (Bisexual)

Flower Scent: Pleasant (Sweet)

Flower Color: Red, Purple, Blue, Pink

Seasons: Spring, Summer, Fall
Trunk
Fruit

Fruit Showiness: No

Seasons: Spring, Summer, Fall

By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
By Kurt Stüber [1] [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons
By Magnus Manske (Own work) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC BY-SA 2.5-2.0-1.0 (http://creativecommons.org/licenses/by-sa/2.5-2.0-1.0)], via Wikimedia Commons
By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

By Dalgial (Own work) [CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons

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Tolerance

Frost Tolerant: No

Heat Tolerance: No

Drought Tolerance: No

Salt Tolerance: Poor
Requirements

Soil Requirements: Clay, Loam, Sand

Soil Ph Requirements: Acidic

Water Requirements: Moderate

Light Requirements: Full, Part
Management

Toxicity: No

Invasive Potential: No

Fruit/ Leaves/ Flowers litter: No

Surface Rooting: No

Pests: Mites, Thrips, Aphids

Plant Propagation: Seed