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1. Every Friday post a photo that includes one or more flowers.
2. Please only post photos you have authority to use.
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Thursday, 8 January 2015

FFF164 - ROCK ISOTOME

Isotoma axillaris, commonly known as Rock Isotome, is a small herbaceous perennial in the family Lobeliaceae. It grows to 50 cm high and has divided leaves. The blue to mauve to pink star-shaped flowers appear between September and May in the species native range. It occurs in Queensland, New South Wales and Victoria, often on rocky outcrops. The species was first formally described by botanist John Lindley in 1826 in Edward's Botanical Register.

The acrid milky sap of Isotoma axillaris is a common characteristic in this family. It can cause severe irritation to skin and temporary blindness if inadvertent contact is made with eyes, and has been reported to be poisonous to stock. These warnings about the sap should not deter gardeners from planting these species as long as appropriate precautions are taken, as they give lasting flower displays in return for very little work. Also, the sap seems to be equally distasteful to potential herbivores. The plantings in the Australian National Botanic Gardens show no evidence of herbivory by either marsupials or insects.

Isotoma axillaris can be easily propagated from seed. Seed can be scattered directly in late winter, when there is no more danger of frost, or planted into pots and then transplanting in spring. Plants will require regular watering until established, and then only need watering about once a week, perhaps more in the heat. Propagation from firm cuttings is also possible, but it is recommended that gloves be worn to avoid reactions to the sap.

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13 comments:

  1. These are such elegant flowers! Happy New Year to you, Nick:)

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  2. A pretty, delicate bloom Nick.

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  3. HI! Nice capture. Thanks for sharing.

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  4. Hello and a happy new year!
    I love these little lively flowers!
    Have a nice weekend,
    moni

    Thanks if you visit my blog
    http://www.reflexionblog.de

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  5. Hello Nick happy new year! Nice little isotomes. Have a nice weekend and hope to see you around.

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  6. Beautiful blooms on a cold snowy day! Happy New Year to you and yours!

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  7. Hello I am new over here and love it! I will return each week to see your flowers.

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  8. it´s a beauty. Thanks for hosting :)

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  9. Happy New Year, Nick. Another spectacular flower that I have never seen! It's interesting how some gorgeous flowers are so toxic.

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