from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Any of various New World plants of the genus Ageratum in the composite family, especially A. houstonianum, having showy, colorful flower heads.
- n. Any of several other plants having flower clusters similar to the ageratum.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of the genus Ageratum of tropical American herbs, annuals and perennials, from the sunflower family Asteraceae, tribe Eupatorieae; they are sometimes used in floral displays.
from The Century Dictionary and Cyclopedia
- n. A genus of plants, natural order Compositæ, all American and chiefly tropical, nearly allied to Eupatorium.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. rhizomatous plant of central and southeastern United States and West Indies having large showy heads of clear blue flowers; sometimes placed in genus Eupatorium
- n. any plant of the genus Ageratum having opposite leaves and small heads of blue or white flowers
Some seeds, such as ageratum, alyssum, impatiens, petunias, and snapdragons, should not be covered at all because they need light in order to germinate.
A Fight for Flower Power Andy McMillan for The Wall Street Journal Dahlinova Dahlias at Metrolina Greenhouses in Huntersville, N.C. More photos and interactive graphics This year, Home Depot is touting an exclusive "Stellar Blue" ageratum, or floss flower, that hides faded blooms as it grows, requiring less clipping.
She is surrounded by the native wild ageratum, Conoclinium coelestinum inherited with the property and planted with bronze carex self sown seedlings.
Spotted sipping on the wild ageratum, Conoclinium coelestinum, is our first image of a monarch butterfly this season.
We started snapping as the butterfly enjoyed the nectar from the wild ageratum, the name of which has changed so many times that the common name will suit our purposes here.
Do you have the wild ageratum, used to be a eupatorium of some sort?
We did best with ageratum and alyssum, impressing neighbors who said nobody had gardened that yard in human memory.
Along the walks ageratum was planted in the following manner to serve as
Often one sees a border of ageratum about such a one.
This was money enough to buy seeds of ageratum, zinnia, dwarf nasturtium,
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