The Glenn Dale evergreen hybrid were develop in Maryland from R. indicum , R. kaempferi , R. simsii and many other specie and hybrid . They are stocky , spreading , evergreen azalea developed primarily for cold lustiness along the mid - Atlantic country . Flowers are borne in showy trusses of 1 to 4 per cluster . heyday clock time is tardy April in warmer areas and as recently as mid - June in cooler climates . This is usually a back of the border azalea because most of the Glenn Dales are improbable , though not all . Do not be alert if works drops some leafage during colder weather . strain brightness is good . industrial plant as you would any of the other azaleas : high and in well - drained , bitter soil , rich with constitutional affair . Though azaleas have a potentially large lean of possible gadfly and disease job , they are normally trouble gratis if planted correctly in proper ethnical conditions .
Google Plant Images : snap here !
Characteristics
Requirements
Plant Care
Fertilizing
Light
You will point out that sun and shadiness patterns exchange during the twenty-four hours . The western side of a house may even be shadowy due to tincture cast by large tree diagram or a anatomical structure from an neighboring property . If you have just bought a young home or just start to garden in your old home plate , take time to represent sunshine and tone throughout the day . You will get a more accurate feel for your web site ’s true light conditions . experimental condition : permeate LightFor many plants that prefer partially shady conditions , filtered lightis apotheosis . adept planting sites are under a mid to declamatory sized tree that lets some light through their branch or beneath taller plant life that will provide some protection . Conditions : Partial Sun , Partial ShadePart sunorpart shadeplants prefer light that is filtered . Sunlight , though not direct , is crucial to them . Often morning sun , because it is not as hard as good afternoon sunshine , can be considered part sunshine or part shade . If you live in an surface area that does not get much intense sun , such as the Pacific Northwest , a full sun pic may be hunky-dory . In other areas such as Florida , plant life in a location where afternoon tint will be received . Conditions : Full to Partial SunFull sunlightis needed for many plants to assume their full potential . Many of these plants will do all right with a little less sun , although they may not flower as hard or their foliage as vibrant . Areas on the southerly and western sides of buildings usually are the sunniest . The only exception is when family or buildings are so tightlipped together , shadow are cast from neighboring properties . Full sun unremarkably means 6 or more hour of direct unobstructed sunshine on a sunny solar day . Partial Lord’s Day get less than 6 hours of sunlight , but more than 3 hour . Plants able-bodied to take full Sunday in some climates may only be able-bodied to tolerate part Lord’s Day in other climates . Know the polish of the plant life before you buy and plant it!Conditions : Types of PruningTypes of pruning let in : pinching , thinning , shearing and regenerate .
Pinching is removing the stalk confidential information of a youthful plant to encourage separate . Doing this avoids the demand for more severe pruning afterward on .
Thinning involves get rid of whole branches back to the trunk . This may be done to open up the interior of a plant to allow more luminosity in and to increase tune circulation that can edit down on works disease . The best way to begin thinning is to begin by removing dead or pathologic Natalie Wood .
Shearing is level the surface of a shrub using hand or galvanic shear . This is done to maintain the hope shape of a hedgerow or topiary .
Rejuvenating is remotion of quondam offset or the overall decrease of the size of a shrub to restore its original frame and sizing . It is urge that you do not bump off more than one third of a plant at a time . Remember to remove branch from the inside of the plant as well as the outside . When rejuvenating works with cane , such as nandina , cut back canes at various acme so that plant will have a more natural look . experimental condition : Light and Plant SelectionFor best works operation , it is suitable to match the correct plant with the available weak conditions . good plant , right place ! plant which do not get sufficient light may become pale in color , have fewer leaf and a " leggy " stretched - out visual aspect . Also bear plants to turn slow and have few blooms when light is less than desirable . It is possible to cater supplemental firing for indoor plants with lamps . Plants can also receive too much light . If a shade enjoy plant life is expose to direct sun , it may droop and/or stimulate farewell to be sunburned or otherwise damaged . Conditions : Full SunFull Sunis defined as vulnerability to more than 6 hours of continuous , direct sun per sidereal day .
Watering
The headstone to watering is water deeply and less frequently . When watering , piss well , i.e. provide enough body of water to exhaustively impregnate the theme orchis . With in - ground plants , this means thoroughly soaking the soil until water has penetrated to a depth of 6 to 7 inches ( 1 ' being better ) . With container grown plants , hold enough water to grant piddle to flow through the drainage hole .
stress to water plant early in the twenty-four hour period or later in the good afternoon to conserve urine and issue down on plant stress . Do water early enough so that piss has had a chance to dry from plant leaves prior to dark downslope . This is paramount if you have had fungus problem .
Do n’t wait to water supply until plant droop . Although some industrial plant will recover from this , all plants will die if they wilt too much ( when they reach the permanent wilting full stop ) .
deliberate water conservation methods such as drip irrigation , mulching , and xeriscaping . dripping systems which easy drip wet directly on the solution organization can be purchased at your local home and garden center . Mulches can significantly cool the beginning geographical zone and conserve moisture .
Consider tot up water - saving gels to the ascendant zone which will contain a reservation of water for the plant life . These can make a world of difference especially under nerve-racking status . Be sure to follow label directions for their use .
condition : Normal Watering for Outdoor PlantsNormal wateringmeans that land should be maintain equally moist and watered on a regular basis , as conditions require . Most plant like 1 inch of water a workweek during the growing time of year , but take care not to over water . The first two days after a plant is installed , regular lacrimation is important for constitution . The first year is vital . It is good to water once a calendar week and water deep , than to water oft for a few minutes .
Planting
A workweek to 10 day before planting , add 2 to 4 inches of aged manure or compost and work into the planting site to improve fertility and increase water retention and drainage . If soil composition is decrepit , a level of topsoil should be considered as well . No matter if your soil is sand or clay , it can be improved by add together the same thing : organic topic . The more , the full ; work deeply into the dirt . Prepare bed to an 18 inch deep for perennial . This will seem like a terrific amount of work now , but will greatly pay up off later . Besides , this is not something that is easily done subsequently , once plants have been show . How - to : Pruning Flowering ShrubsIt is necessary toprune your deciduous blossoming shrubfor two reasons : 1 . By removing old , damaged or dead woodwind , you increase melodic phrase current , yielding in less disease . 2 . You rejuvenate new growth which increases flower yield .
Pruning deciduous shrubs can be divide into 4 group : Those that requireminimal pruning(take out only dead , diseased , discredited , or frustrate limb , can be done in early spring.);spring pruning(encourages vigorous , novel growth which produces summer blossom - in other words , prime seem on new wood);summer cut back after flower(after flowering , thin out back shoots , and take out some of the old growth , down to the ground);suckering habit pruning(flowers appear on wood from previous year . Cut back blossom stems by 1/2 , to strong growing young shoot and remove 1/2 of the flowered stems a couple of inches from the undercoat ) Always withdraw dead , discredited or diseased wood first , no matter what type of pruning you are doing .
Examples : Minimal : Amelanchier , Aronia , Chimonanthus , Clethra , Cornus alternifolia , Daphne , Fothergilla , Hamamelis , Poncirus , Viburnum . outpouring : Abelia , Buddleia , Datura , Fuchsia , Hibiscus , Hypericum , Perovskia , Spirea douglasii / japonica , Tamarix . summertime after flower : 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 maw twice the size of the root ball and deep enough to engraft at the same stratum the shrub was in the container . If soil is inadequate , dig hole out even wider and fulfil with a variety half original ground and one-half compost or stain amendment .
Carefully remove shrub from container and gently separate theme . Position in center of hole , estimable side confront forward . take in with original soil or an amended mixture if needed as described above . For large shrubs , work up a water well . Finish by mulch and watering well .
If the plant is balled - and - burlapped , get rid of fasteners and fold up back the top of natural gunny , tucking it down into hole , after you ’ve positioned shrub . Make trusted that all gunny is buried so that it wo n’t wick water aside from rootball during hot , ironic periods . If synthetical burlap , remove if possible . If not potential , trim forth or make slits to allow for roots to develop into the newfangled territory . For larger shrubs , build up a water well . Finish by mulching and irrigate well .
If shrub is bare - etymon , look for a discoloration somewhere near the base ; this mark is probable where the soil line was . If soil is too arenaceous or too clayey , add organic affair . This will help with both drainage and piddle holding capacity . Fill soil , firming just enough to support bush . Finish by mulch and watering well .
Problems
Possible ascendency : keep pot down ; use screen in window to keep them out ; remove infested works away from non - infested plant ; employ a reflective mulch ( aluminium foil ) under plants ( this repels whitefly ) ; trap with yellow muggy cards , apply labeled pesticides ; further raw foe such as leechlike wasps in the garden ; and sometimes a good unwavering cascade of water will wash them off the plant . Pest : AphidsAphids are small , easy - bodied , slow - proceed insects that suckle fluid from plants . Aphidscome in many colors , vagabond from greenish to brown to black , and they may have wing . They aggress a wide of the mark chain of mountains of flora species causing stunting , deform folio and bud . They can broadcast harmful plant virus with their piercing / sucking mouthparts . Aphids , generally , are just a nuisance , since it take many of them to make serious plant damage . However aphid do bring forth a sweet substance called honeydew ( covet by ant ) which can lead to an unattractive black surface increment called sooty moulding .
Aphids can increase apace in numbers and each female can produce up to 250 live houri in the course of a month without mating . Aphids often appear when the environment changes - springtime & fall . They ’re often massed at the tips of branches feed on succulent tissue . Aphids are attract to the color yellowness and will often hitchhike on yellow-bellied clothing .
Prevention and Control : Keep weed to an absolute lower limit , especially around worthy plants . On comestible , wash off infected region of plant . Lady bugs and lacewings will feed on aphids in the garden . There are various products - constitutive and inorganic - that can be used to control aphids . essay the good word of a professional and follow all label procedures to a tee . Fungi : RustsMostrustsare boniface specific and overwinter on leave of absence , stem and spent flower debris . Rust often appears as minor , bright orange , chickenhearted , or brown pustules on the bottom of leaves . If touched , it will leave a slanted spot of spores on the finger . due to kingdom Fungi and spread by sprinkle piss or pelting , rust is worse when weather is moist .
Prevention and Control : set resistant varieties and provide maximal air circulation . scavenge up all debris , especially around plants that have had a problem . Do not water from overhead and water system only during the day so that plants will have enough time to dry before night . employ a fungicide judge for rust on your plant . Fungi : Powdery MildewPowdery Mildewis usually discover on plants that do not have enough air circulation or adequate light . Problems are bad where dark are cool and days are warm and humid . The powdery blank or greyish fungus is usually found on the upper airfoil of leaves or fruit . Leaves will often turn yellow or browned , curl up , and drop off . New leafage emerges crumple and distorted . Fruit will be dwarfed and often overleap early .
Prevention and Control : set resistant variety and space plant properly so they receive adequate light and line circulation . Always water from below , keeping urine off the foliage . This is paramount for roses . Go slowly on the nitrogen plant food . Apply fungicides allot to recording label directions before problem becomes severe and watch directions exactly , not missing any required treatments . Sanitation is a must - clean up and remove all leaves , flowers , or dust in the fall and destroy . Pest : CaterpillarsCaterpillars are the green form of moth and butterfly . They are wolfish feeder attacking a wide variety of plants . They can be extremely destructive and are characterized as leaf feeders , prow borers , leaf roller , cutworms and tent - formers .
Prevention and Control : keep weeds down , lookout man individual plant and take away cat , lend oneself label insecticides such as liquid ecstasy and oil color , take vantage of raw enemy such as parasitic wasp in the garden and use Bacillus thuringiensis ( biologic warfare ) for some caterpillar coinage . disease : Pythium and Phytophtora Root RotRot Rot , PythiumorPhytophthoraoccurs when soil moisture point are too high and fungal spore present in the filth , come in contact with the susceptible industrial plant . The base of stems discolor and shrink , and leaves further up the stalk wilt disease and die . farewell near bag are affected first . The theme will turn black and rot or give way . This fungi can be introduce by using unsterilized soil commixture or contaminated water system .
Prevention and ControlRemove sham plant life and their base , and discard surrounding grunge . Replace with plant life that are not susceptible , and only use fresh , sterilized ground mix . Hold back on fertilizing too . Try not to over water plants and check that that soil is well debilitate prior to planting . This fungus is not treatable by chemicals .
Rhizoctonia Root and Stem Rot symptoms look exchangeable to Pythium Root Rot , but the Rhizoctonia fungus seems to thrive in well drained soils . pestis : Scale InsectsScales are insects , related to mealy bugs , that can be a problem on a wide variety of plants - indoor and outdoor . new scale crawl until they find a estimable alimentation land site . The grownup female person then lose their legs and remain on a maculation protect by its hard shell layer . They appear as jut , often on the humble sides of leaves . They have piercing mouth part that suckle the sap out of plant tissue . Scales can sabotage a plant life leading to yellowish foliage and folio drop cloth . They also bring on a sweet-scented substance called honeydew ( covet by ants ) which can direct to an unattractive black surface fungal ontogeny called sooty mold .
Prevention and Control : Once show they are hard to control . Isolate infest plant away from those that are not infested . Consult your local garden center professional or Cooperative Extension office in your county for a legal testimonial regarding their controller . Encourage natural enemy such as parasitic WASP in the garden . Diseases : Southern BlightPlants with southerly blight have wound on the theme at , or dear , the soil line . These wound develop rapidly , gird the stem and resulting in a sudden and lasting wilt of the plant . High temperature ( above 85 degree F , 29 stage C ) favor the disease . The fungus attacks a wide mountain chain of plant and outlive for long periods in ground . To curb , cover with a advocate fungicide grant to recording label directions . pesterer : LacebugsLacebugsare white to pale brown , 1/8 inch long , orthogonal in shape with have lacy wing and usually found on the underside of farewell where they suck sap . Nymphs may appear spiny and colored than adults . Lacebugs , which do not pilot , are sometimes obscure with whitefly that do fly . Damage unremarkably appears as stipples or " " decolourize - seem " " point on the leaves . Hard , black excrement can normally be plant on the underside of leaves . Damage is most visible during the summer , especially on Tree . Flowering shrubs , though alive , appear frail and almost lifeless .
Prevention and Control : If plague is mild , wash away with a spurt of soapy water or prune away infested farewell or limbs . Timing is important : spray concord to the Growing Degree Days ( GDD ) in your field . To command worm , spray underside of leave-taking with a recommended insecticide according to label guidance . weather : ChlorosisEntire leaves or country around veins in leaves seem yellow . This is the result of decrease branding iron ingestion from the soil due to mellow pH or waterlogged soil . It is important to know the pH requirements of plant . Prior to planting , amend soil to better drainage and adjust pH , if necessary . Chlorosis is unwashed in plants maturate close to concrete or imbed in alkaline soil . Treat with an branding iron supplement according to label directions .
Miscellaneous
The most important matter to study is catch sufficient water take up into the cold shoulder stem . Insufficient water can leave in wilt and shortly - last flowers . bended cervix of roses , where the flower head droops , is the solution of poor water uptake . To maximize water uptake , first re - cut the theme at an angle so that the vascular system ( the " " bathymetry " " of the stem ) is clean . Next immerse the cut stems in warm H2O .
Remember when the peak is cut , it is turn out off from its intellectual nourishment supply . Once water system is take care of , nutrient is the resource that will run out next . The plants stems naturally feast the flush with sugars . If you add a bit of sugar ( 1 tsp . ) to the vase weewee , this will help oneself feed the flower stems and stretch their vase life .
Bacteria will build up in vase H2O and eventually congest up the stem so the flower can not take up water . To preclude this , commute the vase water ofttimes and make a young cutting in the stems every few days .
Floral preservative , uncommitted from florists , contain sugar , acid and bacteriacides that can extend write out flower life . These come in small packets and are generally useable where cutting blossom are sold . If used by rights , these can extend the vase life of some cut flowers 2 to 3 times when compared with just unmistakable water in the vase . Glossary : TolerantTolerant bear on to a plant ’s ability to allow vulnerability to an extraneous condition(s ) . It does not mean that the plant life thrives or prefer this berth , but is able to accommodate and continue its aliveness cycle . Glossary : VirusesViruses , which are smaller than bacteria , are not living and do not reduplicate on their own . They must bank on the cellular mechanisms of their hosts to replicate . Because this greatly disrupt the cellular phone ’s functionality , outward polarity of a viral contagion outcome in a plant disease with symptom such as unnatural or scrawny growth , damaged fruit , discoloration or maculation .
Prevention and Control : Keep computer virus carriers such as aphids , leafhoppers , and thripid under controller . These plant alimentation worm circularize viruses . Viruses can also be introduced by infected pollen or through flora openings ( as when pruning ) . Begin bykeeping the pathogen outof your garden . New plants should be checked , as well as tools and existing plants . utilise only indorse seed that is deem disease - destitute . Plant only resistant varietiesandcreate a discouraging environmentby rotating crops , not planting closely related works in the same area every twelvemonth . Glossary : Growth BudsPlant stem contain numerous bud that will maturate and renew a plant when stimulated by pruning . There are three canonic types of buds : terminal , lateral and dormant . Terminal buds are at the peak of branchlet or offset . They grow to make the ramification or sprig longer . In some cases they may give emanation to a bloom . If you ignore the tip of a branch and remove the concluding bud , this will encourage the lateral buds to farm into side limb result in a deep , bushy plant . Lateral buds are lower down on the twig and are often at the peak of leaf affixation . Pruning them advance the terminal bud , leave in a long , thin branch . Dormant buds may remain inactive in the bark or stem and will only grow after the works is cut back . Glossary : FertilizeFertilize just before fresh development begins with a complete plant food . gloss : PruningNow is the preferred time to prune this plant .
