P. dubium is an upright , slender - caulescent , hairy annual , with blue - immature leafage . Throughout summertime , hold alone , saucer - shaped , pale scarlet or pinkish red flowers , to 3 inches across , sometimes marked black at the petal bases .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
A week to 10 days before planting , add 2 to 4 inches of aged manure or compost and work into the planting site to better fertility and increase water retentivity and drain . If filth makeup is unaccented , a bed of topsoil should be considered as well . No matter if your soil is backbone or Lucius Clay , it can be ameliorate by adding the same thing : organic topic . The more , the best ; work deeply into the grime . Prepare beds to an 18 inch deep for perennial . This will seem like a tremendous amount of work now , but will greatly pay off later . Besides , this is not something that is easily done later , once plants have been institute . How - to : Planting and Removing AnnualsWhenplanting annuals , set out by preparing the territory . Rototill rotted compost , soil conditioner , pulverized barque , or even builder sand into the exist soil and rake it placid . Annuals grow quickly , so space them as recommended on plant tags . murder industrial plant from their containers or pack gently , being certain to keep as much soil as you may around the base ball . If the rootball is sloshed , loosen it a bit by gently separating blank , matted roots with your fingers or a air pocket knife . Plant at the same depth they were in the containers . Gently make full in around the plants , providing support but not cut off atmosphere to the roots . Water the works well .
Through the time of year , be trusted to fertilize for optimal performance . Take exceptional concern to cut down back or altogether remove any diseased works , as shortly as you see there is a trouble . At the ending of the time of year , be sure to remove all plants and their source balls . Rake the layer well to prepare it for the next season ’s planting .
Problems
Rhizoctoniais a fungus that is observe in most soil and enroll the plant through the root or the stem at grime storey . Prevention and Control : First of all , do not overwater and if you suspect Rhizoctonia may be your problem , decrease watering . If a plant is too far give-up the ghost ( all the leave from the bottom up are wilted ) , remove it . If your flora is in a container , discard the dirt too . Wash the pot with a 1 part bleaching agent to 9 parts water solution . antimycotic agent can be used , according to recording label directions . confer a professional person for a legal recommendation of what fungicide to utilize . Fungi : Powdery MildewPowdery Mildewis usually found on plants that do not have enough gentle wind circulation or adequate light . Problems are worse where nights are cool and days are ardent and humid . The powdery clean or grizzly fungus is normally base on the upper surface of leave or fruit . Leaves will often turn yellow or brown , curl up up , and shed off . New leafage emerge crease and distorted . Fruit will be dwarfed and often dribble betimes .
Prevention and Control : Plant resistant varieties and space plant properly so they get adequate light and strain circulation . Always piddle from below , keeping water supply off the foliation . This is paramount for pink wine . Go easy on the nitrogen fertilizer . Apply fungicides harmonize to label direction before problem becomes stern and conform to directions incisively , not missing any postulate treatment . Sanitation is a must - clean up and polish off all leaves , flowers , or rubble in the fall and destroy .
Miscellaneous
The most important matter to consider is pay back sufficient water supply taken up into the cut base . deficient water can result in droop and short - lived blossom . Bent cervix of roses , where the flower head droops , is the resultant of hapless water consumption . To maximise water consumption , first re - cut the stalk at an angle so that the vascular system ( the " " plumbery " " of the stem ) is clear . Next immerse the cut stem in warm piss .
Bacteria will build up in vase piddle and finally clog up up the stem so the flower can not take up water . To forestall this , change the vase water ofttimes and make a new cut in the stalk every few mean solar day .
flowered preservative , available from flower store , contain sugars , acids and bacteriacides that can stretch forth cut flower life . These come in minuscule packet boat and are generally useable where cutting flowers are sold . If used in good order , these can extend the vase life story of some mown flowers 2 to 3 times when compare with just plain water in the vase .
