1: Chrysanthemum cinerariifolium A plant species of the genus CHRYSANTHEMUM, family ASTERACEAE. The flowers contain PYRETHRINS, cinerolones, and. Sample records for chrysanthemum cinerariifolium The daisy-like flowers of pyrethrum (Tanacetum cinerariifolium) are used to extract pyrethrins, a botanical . Chrysanthemum cinerariifolium – Pyrethrum. Price: $ Image 1. Larger / More Photos. Sorry but this item is currently unavailable. Please check back at a later.
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Plants For A Future can not take any responsibility for any adverse effects from the use of plants. Always seek advice from a professional before using a plant medicinally. Dalmatian pellitory is not used medicinally, though research has shown that the flowers possess weak antibiotic activity. The flowers are the main source of the insecticide pyrethrum, which is toxic to insects but not to mammals. It has sometimes been used as a vermifuge in China. The dried flower buds are the source of the insecticide ‘Pyrethrum'[1, 4, 14, 18, 46, 57, 61].
The pyrethrins are produced in the yellow disc florets. The highest pyrethrin content is from the flowers when they are in full bloom 1. This insecticide also kills many beneficial insects, though it is relatively harmless to mammals.
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Another report says that it is non-toxic to mammals. It is best used in the evening so that it will have lost much of its virulence by the morning. Steep two handfuls of the dried powdered flowers in one litre of hot water for an hour.
This mixture can be either pureed or strained and then used as a spray. Once dried, the flowers or the powder retain their insecticidal properties almost indefinitely. The growing plant can be used as an insect repellent in the garden[14, 18, 20]. Effective against mosquitoes and ants. Succeeds in an ordinary garden soil. Prefers a rich soil with plenty of humus.
PYRETHRUM – Chrysanthemum cinerariifolium / Tanacetum cinerariifolium – Heyne’s Garden Centre
Prefers a pebbly, calcareous dry soil in a sunny position. When grown in moist climates the plants often die after flowering. Tolerates a pH in the range 5. Pyrethrum is widely cultivated as a source of an insecticide[57, 61], the growing plant is also said to repel insects from plants growing cinerariivolium, 18, 20].
Plants For A Future have a number of books available in paperback and digital form. Our new book to be released soon is Edible Shrubs. Seed – sow spring in a greenhouse. Only just cover the seed and do not allow the pot to dry out.
Prick out the seedlings into individual pots once they are large enough to handle and grow them on in the greenhouse for their first winter. Plant out in late spring or early summer. Larger divisions can be planted out direct into their permanent positions. We have found that it is best to pot up smaller divisions and grow them on in light shade in a greenhouse or cold frame until they are growing away well.
Plant them out in the summer or the following spring. Right plant wrong place. We are currently updating this section. For a list of references used on this page please go here. This is a QR code short for Quick Response which gives fast-track access to our website pages. QR Codes are barcodes that can be read by mobile phone smartphone cameras.
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You will receive a range of benefits including: You can unsubscribe at anytime. Chrysanthemum cinerariifolium – Trevir. Prolonged contact with the dried flowers can lead to allergic dermatitis, allergic rhinitis and asthma in humans. Habitats Rocky ground, usually by the seashore. Range Europe – Dalmatia, Yugoslavia. You can translate the content of this page by selecting a language in the select box. It is hardy to zone UK 6 and is not frost tender.
It is in flower from July to September, and the seeds ripen from August to September. The species is hermaphrodite has both male and female organs and is pollinated by Bees, flies. The plant is self-fertile. It cannot grow in the shade. It prefers dry or moist soil. The plant can tolerate maritime exposure. QR Code What’s this? Some information cannot be used for commercial reasons or be modified but some can. Please view the copyright link for more information.
Some people are highly allergic to this plant. Rocky cinerrariifolium, usually by the seashore. Europe – Dalmatia, Yugoslavia.