Agave amica, Polianthes tuberosa

The Tuberose grows in elongated spikes up to 45 cm (18 in) long that produce clusters of fragrant waxy white flowers that bloom from the bottom towards the top of the spike. It has long, bright green leaves clustered at the base of the plant and smaller, clasping leaves along the stem.

Tuberose may grow wild in Mexico and surrounding countries, but the cultivation of tuberose is usually in Morocco, the Comores Islands, France, Hawaii, South Africa, India, and China.

Long-lasting as a cut flower in water (with lots of changes.)Most flowers begin to lose their scent when they are picked. Not so with tuberose, like jasmine, the heady floral scent continues to produce itself. In Ayurvedic medicine, attars are held in high esteem not only for their exquisite fragrance, but their healing properties. Tuberose is known to improve one's capacity for emotional depth.

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Ageratum conyzoides

The Ageratum is an annual herb that grows about 2 feet high, and produces small, pretty, pink flowers at the top of its hairy stems. In some countries, it is considered a weed that is hard to control. Ageratum is widely utilized in traditional medicine systems where it grows continuously. In Brazil, an infusion is prepared with the leaves and/or the entire plant, and employed to treat colic, colds, fevers, diarrhea, rheumatism, spasms, and is also used as a tonic. It is also highly recommended for burns and wounds. In other countries in Latin and South America the plant is widely used for its antibacterial properties for numerous infectious conditions and bacterial infections. In Africa, ageratum is used to treat fever, rheumatism, headache, pneumonia, wounds, burns and colic.

Ageratum houstonianum

As a long-blooming, summer annual, this plant keeps a nice mounded shape throughout its bloom period. It is covered with clusters of small flowers. It comes in blue, pink, and white blooms. It generally grows about a foot high, though some dwarf varieties are available. Mass blue Ageratum is beautiful in beds with yellow marigolds for complementary colors, or with pink begonias to create a soft pastel carpet. Ageratum is very easy to grow in a sunny location.

Agonis flexuosa

Agonis flexuosa is an attractive garden or specimen tree in temperate climates.

Ajania pacifica, Chrysanthemum pacificum

Ajania pacifica forms a bushy mound of lobed green leaves, attractively edged with silver, remaining attractive all season long. Some gardeners grow this plant primarily for its foliage. Small yellow button flowers appear very late in the fall, sometimes lasting until Christmas. It is quite hardy in cold climates, going completely dormant in cold-winter regions, but in warmer climes it is more-or-less evergreen (though at its best in spring and summer).