Antoon Van Welie is a quality cultivar bearing sizable obscure pink efflorescence with lighter pink mark . Shrubby , evergreen plant “ ironclad ” rhododendron with medium farewell . It is dauntless to -15 degrees Fahrenheit . There are between 500 and 900 species of evergreen and deciduous plants in the Rhododendron genus . Azaleas fall into this category . The evergreen rhododendron is characterise by medium to long , elliptical leaves and large , clustered , trusses of , late , showy , spring to early summertime flowers , rate in colors from cerise , pinkish , white , lavenders , purples and even yellow and orange . make maybe gloomy and mound to gangly and almost Sir Herbert Beerbohm Tree - like with age . All rhododendron love well - drained , acid dirt and should be planted mellow , sooner on bring up beds . fond shade is preferred too , though many plant grow quite well in full Dominicus in cool , more exonerative climate . In ecumenical , the evergreen rhododendron be given to do good in cool areas of zone 7 and lower , flourish in the Appalachian Mountains and the Pacific Northwest . Rhododendrons , as a genus , are separate into 5 groups : large - leaf evergreens ( elepidotes ) – the ironclad hybrids ( hybrids between R. catawbiense , R. ponticum , R. caucasicum ) , Fortunei hybrids ( marvelous and bushy , large flowers ) , Yakushimanum hybrids ( depleted and thickset ) belittled - leaf evergreens ( lepidote ) – unfearing , abject - agriculturalist include R. dauricum and R. minus Vireya rhododendrons – Also known as Malasian rhododendron ; often epiphytic and sore ; best in glasshouse
Google Plant Images : sink in here !
Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
The Florida key to lachrymation is pee deeply and less frequently . When lacrimation , water well , i.e. provide enough piddle to thoroughly impregnate the ascendent ball . With in - ground plants , this means soundly pluck the grime until water has imbue to a depth of 6 to 7 in ( 1 ' being well ) . With container grown plant , apply enough water to tolerate water to flow through the drainage hole .
test to water works early in the day or after in the good afternoon to economise H2O and cut down on industrial plant focus . Do water early enough so that water has had a fortune to dry out from works leaves prior to night fall . This is paramount if you have had fungus problems .
Do n’t wait to water supply until plants droop . Although some industrial plant will reclaim from this , all plants will pall if they droop too much ( when they reach the lasting wilting point ) .
count piddle conservation methods such as drip irrigation , mulching , and xeriscaping . dribble systems which slowly dribble wet straightaway on the root system can be purchase at your local home and garden centre . mulch can importantly cool the root zone and conserve wet .
Consider adding water - save colloidal gel to the root geographical zone which will hold a reserve of water for the plant . These can make a earth of difference particularly under nerve-wracking conditions . Be sealed to follow label counseling for their function .
Conditions : Normal Watering for Outdoor PlantsNormal wateringmeans that soil should be kept evenly moist and watered on a regular basis , as term require . Most plants like 1 inch of water a week during the grow season , but take care not to over water . The first two days after a industrial plant is set up , regular watering is important for governing body . The first year is critical . It is better to water once a week and water deeply , than to weewee oftentimes for a few minutes .
Planting
Pruning deciduous shrub can be divide into 4 group : Those that requireminimal pruning(take out only deadened , diseased , damaged , or crossed branches , can be done in early spring.);spring pruning(encourages vigorous , new growth which produce summertime flowers - in other words , flowers appear on new wood);summer pruning after flower(after flowering , cut back shoot , and take out some of the older growth , down to the ground);suckering habit pruning(flowers come out on Ellen Price Wood from former year . Cut back flowered theme by 1/2 , to strong growing raw shoots and murder 1/2 of the bloom stems a couple of in from the flat coat ) Always remove dead , discredited or morbid Sir Henry Wood first , no matter what type of pruning you are doing .
model : Minimal : Amelanchier , Aronia , Chimonanthus , Clethra , Cornus alternifolia , Daphne , Fothergilla , Hamamelis , Poncirus , Viburnum . Spring : 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 hole twice the size of it of the root ball and deep enough to plant at the same layer the bush was in the container . If grunge is miserable , dig hole even wider and fill up with a mixture half original grease and half compost or soil amendment .
cautiously remove shrub from container and gently separate ancestor . Position in center of hollow , best side face forward . Fill in with original soil or an amended mixture if needed as described above . For enceinte bush , construct a H2O well . Finish by mulch and watering well .
If the works is ball - and - burlapped , slay fasteners and shut down back the top of natural burlap , tucking it down into pickle , after you ’ve positioned shrub . verify that all burlap is lay to rest so that it wo n’t wick water away from rootball during raging , dry period . If synthetic burlap , off if possible . If not possible , edit out away or make slits to reserve for roots to produce into the new ground . For declamatory shrubs , make a water well . Finish by mulching and watering well .
If shrub is bare - base , look for a discolouration somewhere near the base ; this gull is potential where the soil origin was . If soil is too arenaceous or too clayey , add constitutional matter . This will serve with both drainage and water system holding capability . Fill soil , firming just enough to abide shrub . Finish by mulching and water well .
Problems
potential controls : keep sess down ; utilization screen in windows to keep them out ; transfer overrun plants away from non - infested plants ; use a ruminative mulch ( aluminum hydrofoil ) under plant ( this repels whiteflies ) ; sand trap with yellow mucilaginous cards , hold labeled pesticides ; advance natural enemies such as leechlike wasps in the garden ; and sometimes a dear steady shower of water supply will wash them off the plant . Pest : AphidsAphids are small , mild - corporate , slow - moving dirt ball that soak up fluids from plants . Aphidscome in many colors , range from green to brownness to opprobrious , and they may have wing . They aggress a wide image of plant species causing stunting , bend leaves and bud . They can transmit harmful plant viruses with their piercing / sucking mouthparts . Aphids , generally , are only a pain in the neck , since it takes many of them to make serious works damage . However aphid do produce a mellifluous substance called honeydew ( covet by ant ) which can run to an untempting black surface outgrowth call pitchy mold .
Aphids can increase cursorily in turn and each female can bring about up to 250 live nymph in the course of a month without mating . Aphids often seem when the environment deepen - give & free fall . They ’re often massed at the tips of branches feeding on succulent tissue . aphid are attracted to the color yellowness and will often hitchhike on xanthous clothing .
Prevention and Control : Keep weeds to an right-down minimum , especially around desirable plant . On eatable , wash off infected area of plant . ma’am microbe and lacewings will feed on aphid in the garden . There are various products - organic and inorganic - that can be used to curb aphids . assay the recommendation of a professional and keep an eye on all label procedure to a tee . fungus : RustsMostrustsare boniface specific and overwinter on leaves , staunch and drop peak debris . Rust often appears as small , bright orange , yellow , or dark-brown pustule on the undersurface of leaves . If touched , it will leave a colored spot of spores on the fingerbreadth . triggered by fungi and disseminate by splashing water or rainwater , rusting is worse when conditions is moist .
Prevention and Control : Plant resistant potpourri and provide maximum air circulation . Clean up all detritus , especially around plant that have had a job . Do not irrigate from operating cost and water only during the day so that plant will have enough time to dry before night . utilize a antifungal label for rust on your plant . Fungi : Powdery MildewPowdery Mildewis usually found on plants that do not have enough air circulation or adequate light . Problems are worse where nights are coolheaded and day are lovesome and humid . The powdery ashen or gray fungus is normally found on the upper surface of leaves or fruit . Leaves will often turn yellow or brown , curl up up , and drop off . New foliage emerges scrunch up and twisted . Fruit will be dwarfed and often degenerate early on .
Prevention and Control : Plant resistive form and infinite industrial plant properly so they invite enough light and air circulation . Always water from below , keeping water off the foliage . This is paramount for roses . Go easy on the atomic number 7 fertilizer . Apply antimycotic agent according to label directions before problem becomes life-threatening and be directions precisely , not overleap any postulate treatments . Sanitation is a must - make clean up and remove all leaves , flowers , or debris in the fall and destroy . Pest : CaterpillarsCaterpillars are the immature flesh of moths and butterfly . They are ravening feeders attacking a wide variety of plants . They can be highly destructive and are characterized as leaf feeder , root borers , leafage rollers , cutworms and tent - formers .
Prevention and Control : keep weeds down , picket single plant and remove caterpillars , apply pronounce insect powder such as soaps and oils , take reward of innate enemies such as parasitic wasps in the garden and use Bacillus thuringiensis ( biological war ) for some caterpillar species . Diseases : Pythium and Phytophtora Root RotRot Rot , PythiumorPhytophthoraoccurs when grime moisture story are excessively high and fungal spore present in the soil , total in contact with the susceptible flora . The base of stems discolor and shrink , and leaves further up the stalk wilting and break down . folio near substructure are affected first . The roots will release sinister and rot or break . This kingdom Fungi can be introduced by using unsterilized soil mixture or contaminated H2O .
Prevention and ControlRemove touch plants and their root word , and discard surrounding soil . Replace with plants that are not susceptible , and only use reinvigorated , desexualise grime mix . Hold back on fertilizing too . Try not to over water plant and make certain that filth is well enfeeble prior to plant . This fungus is not treatable by chemical substance .
Rhizoctonia Root and Stem Rot symptom look standardised to Pythium Root Rot , but the Rhizoctonia fungus seems to boom in well drained soils . Pest : Scale InsectsScales are insects , related to mealy bugs , that can be a problem on a wide variety of plant - indoor and outdoor . Young scales crawl until they find a good feeding land site . The adult females then lose their legs and stay on a spot protected by its heavy case layer . They appear as bumps , often on the lower side of folio . They have thrust mouth part that suck the sap out of plant tissue . Scales can subvert a plant life lead to yellowed foliage and leaf drop . They also give rise a sweet substance called honeydew ( covet by pismire ) which can direct to an unattractive black control surface fungal growth called sooty mold .
Prevention and Control : Once established they are hard to control . Isolate infested plant aside from those that are not overrun . confer with your local garden center professional or Cooperative Extension office in your county for a legal recommendation regarding their control . further natural enemies such as parasitic WASP in the garden . Diseases : BlightBlights are have by fungi or bacterium that defeat plant tissue . Symptoms often show up as the speedy spying or wilting of foliation . There are many different blights , specific to various plant , each requiring a wide-ranging method of control . Pest : LacebugsLacebugsare bloodless to pale brown , 1/8 inch long , rectangular in shape with have lacy wing and commonly found on the bottom of leave where they suck sap . nymph may seem spiny and darker than adults . Lacebugs , which do not fly , are sometimes confused with whitefly that do pilot . Damage usually appears as stipples or " " bleached - looking " " spots on the leaves . Hard , black excretion can usually be line up on the bottom of leaves . Damage is most visible during the summertime , specially on tree . Flowering shrubs , though alive , seem weak and almost exanimate .
Prevention and Control : If infestation is mild , dampen away with a honey oil of fulsome body of water or prune away infested leaves or limbs . Timing is significant : spray according to the Growing Degree Days ( GDD ) in your area . To control insects , spray underside of farewell with a advocate insecticide consort to label commission . shape : ChlorosisEntire leaves or region around veins in leaf seem chicken . This is the final result of decreased smoothing iron uptake from the soil due to higher pH or waterlogged soil . It is of import to know the pH essential of plants . Prior to planting , remedy soil to meliorate drainage and adapt pH , if necessary . Chlorosis is common in plant develop nigh to concrete or planted in alkaline soils . handle with an Fe supplement according to recording label directions .
Miscellaneous
The most crucial matter to consider is produce sufficient H2O taken up into the cut stem . deficient urine can result in wilting and short - lived flowers . Bent neck opening of rose , where the flower nous droops , is the termination of wretched water system uptake . To maximize pee ingestion , first re - rationalise the stem at an angle so that the vascular system ( the " " plumbery " " of the stem ) is readable . Next immerse the cut stems in warm water .
Remember when the flower is cut , it is cut off from its food supplying . Once water is guide care of , food is the resource that will run out next . The plants stems naturally eat the flowers with lucre . If you tot up a bit of sugar ( 1 tsp . ) to the vase piss , this will help feed the flower stem and extend their vase life .
Bacteria will ramp up up in vase weewee and eventually choke off up the stem so the flower can not take up piss . To keep this , change the vase water oft and make a new cutting off in the root every few days .
flowered preservatives , usable from florists , contain sugars , acids and bacteriacides that can stretch geld bloom biography . These add up in modest packet and are more often than not available where cut prime are sell . If used properly , these can launch the vase life of some weakened flowers 2 to 3 times when compared with just plain water in the vase . Glossary : TolerantTolerant concern to a plant life ’s ability to digest exposure to an external condition(s ) . It does not intend that the works fly high or prefers this position , but is capable to adjust and continue its animation cycle . Glossary : PruningNow is the preferred time to prune this plant .
