Ageratum Monarch Magic™

General Information

A one-of-a-kind spreading ageratum that monarch butterflies can’t resist. It has a full, spreading look that’s ideal for use in baskets and mixes. Great for landscapes and patios.

Grower Information

A one-of-a-kind spreading ageratum that monarch butterflies can’t resist! Vigorous, spreading habit is ideal for use in baskets and mixes. Drought tolerant plants are great for landscapes and patios.

2025 Cincinnati Zoo and Botanical Gardens Field Trials standout performer: “A great bloomer and attracts monarchs by the droves!”

Greenhouse Grower: “It’s not just a catchy name. When we would walk through the garden, we’d see 50 butterflies hanging around it.”
'Agerboyuma'
Protection Information: PP36,798
(Flowering Only License)

Product Form

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Liner
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Prefinished
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URC

Growing Information

General Information

Height: 6 - 12 in. (15 - 30 cm)
Spread: 8 - 16 in. (20 - 41 cm)
Exposure: Partial Sun, Sun

Propagation Guide

Tray Sizes (cells/tray): 50, 72, 105
Rooting Hormone: Yes
Average Days with Mist: 10-15
Pinch: Yes
Average Propagation Time (weeks): 4-5
Comments: Daminozide/chlormequat chloride tank mix at 3,000/1,000 ppm applied at 10-14 days or when roots hit the edge of the cell. Benzyladenine 300 ppm or ethephon 300 ppm will increase branching.

Finishing

Soil pH: 6-6.8
Light Levels (fc): 5,000-10,000
Temperature Day: 70-78°F (21-26°C)
Temperature Night: 50-60°F (10-16°C)
Fertilization (ppm N): 175-225
No. of Pinches: 1
Plant Growth Regulators (S=spray / D=Drench): Paclobutrazol 1-2 ppm drench, or daminozide 2,500-3,500 ppm and chlormequat chloride 1,000-1,500 tank mix(S).
Pests: Mites, whitefly, thrips, aphids
Diseases: Botrytis, Pythium, Rhizoctonia
Finishing Comments: Let it dry between watering.

Crop Time (weeks)

4- to 5-inch (10- to 13-cm) Pots, Quarts: 1 ppp, 6-9 weeks
6-inch (15-cm) Pots: 1 ppp, 7-11 weeks
10- to 12-inch (25- to 30-cm) Pots: 3 ppp, 8-10 weeks

Garden Details

Scientific name: Ageratum houstonianum
Common Name: FlossFlower
Blooming Season: Early Spring, Spring, Late Spring, Summer
Plant Habit: Spreading
Characteristics: Attracts Butterflies, Low Maintenance
Water: Medium
Fertilize: Once a month
Spacing: 8 - 12 in. (20 - 30 cm)
Height: 6 - 12 in. (15 - 30 cm)
Width: 8 - 16 in. (20 - 41 cm)
Exposure: Partial Sun, Sun

Videos

New from Ball FloraPlant 2025 | Ball Seed Customer Days
5:04
NEW Monarch Magic Ageratum - CAST24
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Tour our Customer Days Showcase - 2024 Ball FloraPlant
5:46
Meet Monarch Magic
0:46

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