By TammyWhite
2 years ago

Crocosmia flowers

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Crocosmia  is a smallgenus of flowering plants in the iris family Iridaceae. 

They can be evergreen or deciduousperennials that grow from basal underground corms. The alternate leaves are cauline and ensiform (sword shaped). The blades are parallel-veined. The margin is entire. The corms are unusual in forming vertical chains with the youngest at the top and oldest and largest buried most deeply in the soil. The roots of the lowermost corm in a chain are contractile roots and drag the corm deeper into the ground where conditions allow. The chains of corms are fragile and easily separated, a quality that has enabled some species to become invasive and difficult to control in the garden.

They have colourful inflorescences of 4 to 20 vivid red and orange subopposite flowers on a divaricately (horizontally) branched stem. The terminal inflorescence can have the form of a cyme or a raceme. These flower from early summer well into fall. The flowers are sessile on a flexuose arched spike. The fertile flowers are hermaphroditic. All stamens have an equal length. The style branches are apically forked. They are pollinated by insects, birds (hummingbirds) or by the wind. The dehiscent capsules are shorter than they are wide.

They are commonly known in the United States as coppertips or falling stars, and in the United Kingdom as montbretia. Other names, for hybrids and cultivars, include antholyza, and curtonus. The genus name is derived from the Greek words krokos, meaning "saffron", and osme, meaning "odor" – from the dried leaves emitting a strong smell like that of saffron (a spice derived from Crocus – another genus belonging to the Iridaceae) – when immersed in hot water.

Crocosmias are grown worldwide, and more than 400 cultivars have been produced.
Crocosmia are winter-hardy in temperate regions. They can be propagated through division, removing offsets from the corm in spring.



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