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PlantFiles: Floss Flower, Ageratum
Ageratum houstonianum 'Patina Delft'

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Ageratum (ad-jur-RAY-tum) (Info)
Species: houstonianum (hoos-toh-nee-AH-num) (Info)
Cultivar: Patina Delft
Additional cultivar information: (PP20479, Patina Series, aka Agadeft)
Hybridized by Sanders; Year of Registration or Introduction: 2009


6-12 in. (15-30 cm)

9-12 in. (22-30 cm)

Not Applicable

Sun Exposure:
Full Sun
Sun to Partial Shade

Unknown - Tell us

Bloom Color:
Medium Blue
White/Near White

Bloom Time:
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Blooms repeatedly


Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater

Soil pH requirements:
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information:

Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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By Kell
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There are a total of 8 photos.
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No positives
2 neutrals
No negatives

Gardeners' Notes:

Neutral John_in_Garland On May 30, 2010, John_in_Garland from Garland, TX wrote:

Growing this in a hayrack planter with morning and mid-day Texas sun. While blooming now June 1, Delft blue flowers appear to bleach in the sun, and pale color very disappointing compared to color in early May. May move it to avoid midday sun.

Neutral Kell On May 31, 2009, Kell from Northern California, CA (Zone 9b) wrote:

In the 2008 UF Spring Trial Garden of all the Patina series of Ageratum, the Delft was considered the most vigorous cultivar.


This plant has been said to grow in the following regions:

San Leandro, California
Brandon, Florida
Richmond, Texas

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