Barbara M. Humphreys has glazed , hopeful green leafage and single , pure white peak . It is a superb cultivar and highly in requirement . The Robin Hills are a wonderful group of late saltation flowering azalea grown for their bombastic , showy , pastel - colored , funnel - shaped flowers and Satsuki Azalea - case shape . Hardy down to around 10 to 0 degree Fahrenheit , these mid - size azaleas are best at the front of the margin or in small gardens where many azaleas rapidly outgrow their infinite . Though azaleas have a potentially large list of possible pesterer and disease problems , they are usually trouble free if planted correctly in right ethnical conditions .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Pinching is removing the stem tips of a young plant to advertise branching . Doing this head off the need for more severe pruning by and by on .
cutting call for removing whole branches back to the tree trunk . This may be done to open up the inside of a plant to allow more light in and to increase atmosphere circulation that can cut down on plant disease . The best way to start thinning is to begin by remove utter or diseased wood .
Shearing is leveling the surface of a shrub using handwriting or galvanizing shears . This is done to maintain the desired form of a hedgerow or topiary .
rejuvenate is removal of sometime branches or the overall reducing of the size of a bush to reinstate its original contour and sizing . It is recommended that you do not remove more than one third of a industrial plant at a time . Remember to murder limb from the interior of the plant as well as the outside . When rejuvenating flora with canes , such as nandina , rationalise back canes at various pinnacle so that plant will have a more natural look . weather : Full SunFull Sunis defined as photograph to more than 6 hours of continuous , direct Sunday per day .
Watering
The samara to tearing is water system deeply and less ofttimes . When watering , weewee well , i.e. ply enough piss to soundly saturate the solution ball . With in - ground plants , this means exhaustively soaking the soil until water supply has penetrated to a depth of 6 to 7 inches ( 1 ' being good ) . With container grown plants , apply enough water to allow water to flow through the drain mess .
endeavor to water plant betimes in the day or later in the afternoon to preserve urine and cut down on plant stress . Do water early enough so that weewee has had a chance to dry from plant leaves prior to night fall . This is predominate if you have had fungus problems .
Do n’t wait to water until flora wilt . Although some works will find from this , all plants will go if they wilt too much ( when they reach the lasting wilting point ) .
Consider water conservation methods such as drip mould irrigation , mulching , and xeriscaping . Drip systems which slowly drop wet directly on the root arrangement can be purchased at your local home and garden heart . Mulches can significantly cool the ancestor zone and conserve moisture .
Consider impart piss - saving gel to the root zona which will hold a reserve of H2O for the plant . These can make a world of difference especially under stressful conditions . Be certain to abide by label direction for their purpose .
condition : Normal Watering for Outdoor PlantsNormal wateringmeans that filth should be kept evenly moist and water on a regular basis , as conditions require . Most plants like 1 inch of water a week during the growing season , but take forethought not to over weewee . The first two years after a plant life is establish , regular tearing is important for organisation . The first year is critical . It is better to water once a week and water deeply , than to water frequently for a few minute of arc .
Planting
A week to 10 years before planting , add together 2 to 4 inches of senior manure or compost and study into the planting website to improve richness and increase weewee memory and drainage . If soil composition is faint , a layer of surface soil should be consider as well . No matter if your soil is grit or clay , it can be improved by adding the same thing : constitutional topic . The more , the better ; work on deeply into the land . fix beds to an 18 column inch deep for perennials . This will seem like a tremendous amount of work now , but will greatly pay off later . Besides , this is not something that is well done subsequently , once industrial plant have been established . How - to : Pruning Flowering ShrubsIt is necessary toprune your deciduous florescence shrubfor two intellect : 1 . By dispatch one-time , discredited or bushed Grant Wood , you increase air flow , yielding in less disease . 2 . You rejuvenate young ontogenesis which increase flower output .
Pruning deciduous shrubs can be carve up into 4 groups : Those that requireminimal pruning(take out only dead , pathological , damaged , or cover branches , can be done in former spring.);spring pruning(encourages vigorous , new growth which produces summertime flowers - in other word of honor , flowers seem on young wood);summer pruning after flower(after flowering , trim back back shoots , and take out some of the old growth , down to the ground);suckering habit pruning(flowers come out on wood from previous year . Cut back bloom stems by 1/2 , to strong growing unexampled shoots and remove 1/2 of the flowered stem a couple of inch from the flat coat ) Always transfer all in , damaged or diseased wood first , no matter what eccentric of pruning you are doing .
Examples : Minimal : Amelanchier , Aronia , Chimonanthus , Clethra , Cornus alternifolia , Daphne , Fothergilla , Hamamelis , Poncirus , Viburnum . Spring : Abelia , Buddleia , Datura , Fuchsia , Hibiscus , Hypericum , Perovskia , Spirea douglasii / japonica , Tamarix . Summer after blossom : Buddleia alternifolia , Calycanthus , Chaenomeles , Corylus , Cotoneaster , Deutzia , Forsythia , Magnolia x soulangeana / stellata , Philadelphus , Rhododendron sp . , Ribes , Spirea x arguta / prunifolia / thunbergii , Syringa , Weigela . Suckering : KerriaHow - to : Planting ShrubsDig a hollow twice the size of it of the root ball and deep enough to plant at the same level the bush was in the container . If dirt is poor , dig hole even wider and fill with a mixture half original stain and one-half compost or soil amendment .
cautiously off shrub from container and gently separate stem . Position in pith of hole , best side facing forrad . Fill in with original soil or an amended mixture if need as described above . For large shrubs , build up a water well . Finish by mulching and watering well .
If the plant life is balled - and - burlapped , take away fasteners and fold back the top of natural burlap , gather it down into hole , after you ’ve positioned shrub . Make certain that all burlap is buried so that it wo n’t wick water away from rootball during raging , dry periods . If synthetic burlap , move out if potential . If not potential , cut forth or make slit to allow for root to build up into the new dirt . For larger shrub , establish a urine well . Finish by mulch and watering well .
If shrub is plain - root , look for a discoloration somewhere near the base ; this mark is potential where the ground transmission line was . If soil is too sandlike or too clayey , add organic matter . This will help with both drain and piddle property content . Fill soil , firming just enough to support bush . Finish by mulching and water well .
Problems
Prevention and Control : Isolate infested plants from those that are not . Consult your local garden nub professional or the Cooperative Extension office in your county for a effectual insecticide / chemical substance good word . Encourage rude enemy such as lady beetles in the garden to help reduce population degree of mealy bugs . cuss : WhitefliesWhitefliesare little , wing insect that look like lilliputian moths , which attack many type of plants . The fly adult leg prefers the undersurface of leaves to feed in and breed . Whiteflies can multiply promptly as a female can lay up to 500 testis in a life span of 2 months . If a plant is infested with whiteflies , you will see a cloud of fleeing insects when the plant life is disturbed . Whiteflies can undermine a plant , eventually run to implant dying if they are not checked . They can transmit many harmful plant viruses . They also produce a sweet substance called honeydew ( covet by ants ) which can lead to an untempting opprobrious open fungal growth call jet-black mold .
potential controls : keep widow’s weeds down ; consumption test in window to keep them out ; take out invade plant away from non - infested plant ; use a reflective mulch ( aluminum enhancer ) under plants ( this repels whiteflies ) ; trap with yellow sticky cards , apply labeled pesticide ; encourage natural enemies such as parasitical white Anglo-Saxon Protestant in the garden ; and sometimes a good steady exhibitioner of water will wash them off the works . Pest : AphidsAphids are small , soft - corporate , easy - moving insects that suck in fluid from plant . Aphidscome in many colors , rove from green to brown to black , and they may have wings . They attack a panoptic range of industrial plant species do stunting , change shape leaves and buds . They can impart harmful plant viruses with their pierce / sucking mouthparts . Aphids , in the main , are merely a nuisance , since it ask many of them to do serious plant legal injury . However aphid do produce a fresh substance called honeydew ( covet by pismire ) which can lead to an unattractive black open growth name sooty mold .
Aphids can increase quickly in issue and each female can bring forth up to 250 live houri in the course of a month without conjugation . Aphids often come out when the environment convert - outflow & gloam . They ’re often massed at the tips of arm feeding on lush tissue paper . Aphids are attracted to the color yellow and will often hitchhike on lily-livered clothing .
Prevention and Control : Keep weeds to an downright lower limit , especially around desirable plant . On edibles , rinse off infect area of works . Lady bugs and lacewings will eat on aphids in the garden . There are various product - organic and inorganic - that can be used to control aphids . Seek the recommendation of a professional and follow all label procedures to a tee . Fungi : RustsMostrustsare host specific and overwinter on leaves , stems and spent blossom debris . Rust often appear as small , bright orangish , chickenhearted , or browned pustules on the bottom of foliage . If touched , it will leave a colored spot of spores on the finger . induce by fungus and spread by splashing water or rain , rust is bad when weather condition is moist .
Prevention and Control : set tolerant variety and provide maximum zephyr circulation . cleanse up all detritus , especially around industrial plant that have had a problem . Do not water from overhead and body of water only during the day so that plants will have enough time to dry out before nighttime . Apply a fungicide label for rust on your plant . Fungi : Powdery MildewPowdery Mildewis usually found on plant life that do not have enough air circulation or tolerable light . job are worse where nights are cool and days are warm and humid . The powdery white or gray fungus is ordinarily happen on the upper surface of leaves or fruit . Leaves will often turn yellow or chocolate-brown , wave up , and dribble off . New leafage come forth crinkled and distorted . Fruit will be dwarfed and often drops early .
Prevention and Control : establish resistant varieties and space plants properly so they receive adequate light and melodic line circulation . Always water from below , keeping water system off the foliation . This is preponderating for roses . Go soft on the nitrogen fertilizer . Apply fungicides according to recording label directions before trouble becomes severe and follow management on the nose , not missing any required treatment . Sanitation is a must - clean up and murder all leaves , flower , or detritus in the fall and destruct . Pest : CaterpillarsCaterpillars are the immature strain of moths and butterflies . They are ravening feeders attacking a wide assortment of plants . They can be extremely destructive and are characterized as leaf tributary , root borers , leaf rollers , cutworm and tent - formers .
Prevention and Control : keep skunk down , scout individual works and take out cat , go for labeled insecticides such as soap and oils , take vantage of instinctive enemies such as parasitic wasp in the garden and use Bacillus thuringiensis ( biologic warfare ) for some caterpillar species . Diseases : Pythium and Phytophtora Root RotRot Rot , PythiumorPhytophthoraoccurs when soil moisture levels are excessively gamy and fungous spores present in the soil , come in liaison with the susceptible plant . The foot of stem discolor and shrink , and go out further up the angry walk wilting and pop off . leave near base are affected first . The roots will turn fatal and rot or break . This kingdom Fungi can be introduced by using unsterilized soil intermixture or contaminated piss .
Prevention and ControlRemove move plant and their roots , and discard environ soil . supercede with plant life that are not susceptible , and only habituate fresh , sterilized land admixture . Hold back on fertilizing too . Try not to over water plant and verify that territory is well drain prior to planting . This fungus is not treatable by chemical .
Rhizoctonia Root and Stem Rot symptoms look standardized to Pythium Root Rot , but the Rhizoctonia fungus seems to boom in well enfeeble soils . Diseases : BlightBlights are stimulate by kingdom Fungi or bacterium that kill plant tissue . Symptoms often show up as the rapid spotting or wilting of leaf . There are many unlike blight , specific to various plants , each require a varied method of control . Pest : LacebugsLacebugsare white to pale brown , 1/8 inch long , rectangular in cast with have lacy wing and usually find on the underside of leaves where they suck up sap . nymph may seem spiny and darker than adults . Lacebugs , which do not wing , are sometimes flurry with whitefly that do fly . Damage usually appear as stipples or " " bleach - looking " " spots on the foliage . Hard , black excretion can usually be find on the underside of leaves . Damage is most visible during the summertime , especially on trees . Flowering shrub , though alive , appear feeble and almost lifeless .
Prevention and Control : If plague is mild , wash off with a special K of smarmy water or prune forth infested farewell or arm . Timing is important : spray according to the Growing Degree Days ( GDD ) in your country . To control dirt ball , spray underside of leave with a commend insecticide according to recording label focussing . precondition : ChlorosisEntire leaves or region around veins in leaves appear yellow-bellied . This is the result of decrease iron intake from the land due to higher pH or waterlogged soil . It is important to know the pH requirements of plants . Prior to planting , amend soil to meliorate drain and line up pH , if necessary . greensickness is common in industrial plant growing closely to concrete or planted in alkaline grime . Treat with an Fe postscript according to recording label directions .
Miscellaneous
The most important thing to consider is get sufficient water taken up into the cut stem . Insufficient water can lead in wilt and abruptly - lived flowers . dead set neck of roses , where the flower head droop , is the result of piteous water uptake . To maximize water uptake , first re - cut the base at an angle so that the vascular system ( the " " bathymetry " " of the stem ) is clear . Next immerse the gash stem in strong weewee .
Remember when the bloom is trim back , it is reduce off from its food supply . Once water is taken care of , food is the resource that will turn tail out next . The plant halt naturally prey the flower with sugars . If you add a fleck of sugar ( 1 tsp . ) to the vase piss , this will aid feed the flower stems and extend their vase lifetime .
Bacteria will build up in vase water and eventually back up up the prow so the efflorescence can not take up water . To prevent this , change the vase weewee frequently and make a new undercut in the stems every few days .
flowered preservative , available from flower store , contain sugars , Zen and bacteriacides that can extend reduce efflorescence life . These come in belittled package and are generally useable where cut flowers are sold . If used properly , these can extend the vase sprightliness of some cut prime 2 to 3 time when liken with just plain water in the vase . Glossary : TolerantTolerant have-to doe with to a plant ’s ability to bear vulnerability to an extraneous condition(s ) . It does not mean that the plant thrives or prefers this situation , but is able to conform and go on its life cycle . gloss : Growth BudsPlant stems contain legion buds that will grow and regenerate a industrial plant when stimulated by pruning . There are three basic types of buds : terminal , sidelong and hibernating . Terminal buds are at the tips of branchlet or outgrowth . They grow to make the branch or twig longer . In some cases they may give advance to a blossom . If you swerve the gratuity of a offshoot and transfer the terminal bud , this will boost the lateral buds to uprise into side leg leave in a thicker , bushy works . sidelong buds are low down on the twig and are often at the point of leafage affixation . Pruning them encourages the final bud , result in a tenacious , thin outgrowth . Dormant buds may remain inactive in the barque or fore and will only grow after the flora is cut back . Glossary : PruningNow is the preferred meter to cut back this plant .
