https://gardenology.mywikis.net/w/index.php?action=history&feed=atom&title=PetreaPetrea - Revision history2026-04-12T13:40:52ZRevision history for this page on the wikiMediaWiki 1.35.3https://gardenology.mywikis.net/w/index.php?title=Petrea&diff=28160&oldid=prevKpdhage: New page: __NOTOC__{{Plantbox | name = ''LATINNAME'' <!--- replace LATINNAME with the actual latin name --> | common_names = <!--- if multiple, list all, if none, leave blank --> | growth_habi...2009-07-06T15:33:20Z<p>New page: __NOTOC__{{Plantbox | name = ''LATINNAME'' <!--- replace LATINNAME with the actual latin name --> | common_names = <!--- if multiple, list all, if none, leave blank --> | growth_habi...</p>
<p><b>New page</b></p><div>__NOTOC__{{Plantbox<br />
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Petrea (Robert James Lord Petre, 1710-1742, a patron of botany who <br />
had the finest collection of exotic plants in Europe). Sometimes <br />
spelled Petraea. Verbe- naceax. Tropical American woody plants, one <br />
of which is a choice blue- or purple-flowered climber.<br />
<br />
Twining or arborescent shrubs: lvs. opposite, leathery, <br />
pinnate-veined: fls. violet, purple or bluish, in long terminal <br />
racemes; calyx with 5 scales in the throat; calyx-lobes colored <br />
during anthesis but often becoming green and rigid in fr.; corolla <br />
usually a little more intensely colored; limb 5-cut, oblique, the <br />
tube short and cylindrical; stamens 4, didynamous; ovary imperfectly <br />
2-loculed; locules 1-ovuled: fr. included in calyx, indehiscent, <br />
2-celled and 2-seeded or 1-seeded by abortion.—Species about a dozen, <br />
Mex., W. Indies to Brazil.<br />
<br />
Petrea is well adapted to be grown with other stove climbers. The <br />
plants do well when trained to a balloon- shaped or flat wire frame, <br />
to pillars, or carried near the roof, where they add greatly to the <br />
beauty of the house. When it is intended to plant them out in the <br />
border, the first point to be considered is the drainage in the pot. <br />
This is best effected by placing a layer of brick rubbish of about 4 <br />
to 5 inches. This will keep the compost from becoming sour or <br />
stagnant in the pot. For a compost, use turfy loam four parts, turfy <br />
peat one part, well-decayed cow-manure one part, with admixture of a <br />
liberal quantity of sharp gritty sand. By the end of January the <br />
temperature may be increased to about 62° for night with 10° to 15° <br />
higher by day. Just as soon as they show renewed vigor they will not <br />
stand to become dry at the roots. They will want a good syringing <br />
over and under the foliage every morning on bright days. Give enough <br />
ventilation to keep the air pure and sweet. In midsummer they need <br />
some shade if only during the most powerful sunshine. When they are <br />
well established, they will be benefited by liquid manure once a <br />
week. For midsummer the temperature may be allowed to run up 80° or <br />
85° with sun, and a night temperature of 70°. They are easily <br />
propagated from shoot-cuttings placed in a brisk bottom heat and <br />
subjected to the usual condition of moisture and shade required for <br />
other plants. When they are wanted to grow in pots, keep shifting <br />
until they are in 8- or 10- inch pots. The compost may be renewed in <br />
the spring. (J. J. M. Farrell.)<br />
{{SCH}}<br />
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==Cultivation==<br />
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===Propagation===<br />
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===Pests and diseases===<br />
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==Species==<br />
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==Gallery==<br />
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Image:Upload.png| photo 1<br />
Image:Upload.png| photo 2<br />
Image:Upload.png| photo 3<br />
</gallery><br />
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==References==<br />
*[[Standard Cyclopedia of Horticulture]], by L. H. Bailey, MacMillan Co., 1963<br />
<!--- xxxxx *Flora: The Gardener's Bible, by Sean Hogan. Global Book Publishing, 2003. ISBN 0881925381 --><br />
<!--- xxxxx *American Horticultural Society: A-Z Encyclopedia of Garden Plants, by Christopher Brickell, Judith D. Zuk. 1996. ISBN 0789419432 --><br />
<!--- xxxxx *Sunset National Garden Book. Sunset Books, Inc., 1997. ISBN 0376038608 --><br />
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==External links==<br />
*{{wplink}}<br />
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{{stub}}<br />
[[Category:Categorize]]<br />
<br />
<!-- in order to add all the proper categories, go to http://www.plants.am/wiki/Plant_Categories and copy/paste the contents of the page here, and then follow the easy instructions! --></div>Kpdhage