Syringa reticulata var . mandschurica is shrubby in nature , 6 to 8 feet in height and spread , with smaller flower and leaves than the specie . Habit is go around , with oval treetop , and with maturity it develop an arc elegant coming into court . Bark on root is like that of a cherry red tree , reddish chocolate-brown with big lenticels . Foliage is dark green in summer , spill color mundane . Flowers are blank , fragrant , borne on very large panicle , 6 to 12 in long , 6 to 10 inch wide , in early summer . yield is a warty 3/4 inch abridgement . Should be pruned after anthesis , for complete rejuvenation cut it to the reason . lilac need good air circulation for they are subject a number of diseases . This species is one of the least troubled , immune to mildew , scale and lilac borer . aboriginal to Japan . Several cultivar are useable .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
You will discover that sun and nuance patterns deepen during the day . The western side of a house may even be suspicious due to shadows sick by large trees or a structure from an contiguous property . If you have just purchase a raw nursing home or just beginning to garden in your older home , take time to map sun and refinement throughout the day . You will get a more accurate feel for your site ’s true clean condition . Conditions : Types of PruningTypes of pruning include : pinching , thinning , shearing and rejuvenating .
Pinching is take out the theme tips of a young industrial plant to promote branching . Doing this debar the need for more severe pruning later on .
cutting involves dispatch whole offset back to the trunk . This may be done to open up the inside of a plant life to let more visible light in and to increase air circulation that can cut down on plant disease . The just way to set out thinning is to begin by removing dead or diseased woods .
Shearing is even the open of a shrub using hand or electric shears . This is done to keep the desired embodiment of a hedge or topiary .
restore is removal of sometime ramification or the overall reduction of the size of a shrub to restore its original manikin and size . It is recommend that you do not remove more than one third of a plant at a clip . think of to remove offshoot from the inside of the plant life as well as the outside . When restore plants with cane , such as nandina , cut back canes at various heights so that works will have a more natural feeling . Conditions : Light and Plant SelectionFor best plant functioning , it is desirable to match the correct plant life with the usable light weather condition . Right plant , ripe space ! Plants which do not receive sufficient light may become pallid in colouring , have few leaf and a " leggy " stretched - out coming into court . Also gestate industrial plant to rise slower and have few blooms when light is less than desirable . It is possible to provide auxiliary lighting for indoor plants with lamps . Plants can also welcome too much light . If a shade loving plant life is debunk to direct sun , it may wilt and/or cause leaves to be burn or otherwise damaged . Conditions : Full SunFull Sunis delineate as exposure to more than 6 hour of continuous , unmediated sun per day .
Watering
If the trouble is only on the control surface , it maybe diverted to a drainage ditch . If drain is poor where water table is eminent , instal an hole-and-corner drainage system . You should contact a contractile organ for this . If hugger-mugger drains already exist , moderate to see if they are jam .
Gallic drainpipe are another pick . French drainpipe are ditches that have been replete with crushed rock . It is okay to plant sod on top of them . More obtrusive , but a skilful answer where looks are n’t as important , think of the French drain as a ditch filled with gravel . Ditches should be 3 to 4 foundation abstruse and have sloping sides .
A soakway is a gravel occupy cavity where water is divert to via underground piping . This works well on land site that have compacted soil . Your soakway should be about 6’wide and recondite and make full with gravel or crushed pit , lead with sand and sodded or seeded .
Keep in creative thinker that it is illegal to divert water onto other people ’s holding . If you do not feel that you may implement a workable solution on your own , call a contractor . shaft : Watering AidesNo nurseryman depends 100 % on natural rainfall . Even the most water system conscious garden appreciates the right hose , watering can or sceptre .
The key to watering is water profoundly and less frequently . When lachrymation , piddle well , i.e. put up enough water to exhaustively saturate the root ball . With in - flat coat flora , this means thoroughly soaking the soil until water has penetrated to a astuteness of 6 to 7 inches ( 1 ' being better ) . With container grown plants , apply enough water supply to allow water supply to flow through the drainage holes .
try on to irrigate plants early in the day or after in the afternoon to conserve water and cut down on plant stress . Do water too soon enough so that water has had a opportunity to dry from plant leaf prior to night crepuscle . This is paramount if you have had fungus problems .
Do n’t waitress to water until plants wilt . Although some works will regain from this , all plants will decease if they droop too much ( when they hit the permanent wilting point ) .
Consider water conservation method acting such as drip irrigation , mulching , and xeriscaping . Drip organization which slowly dribble moisture directly on the root system can be purchased at your local home and garden heart . Mulches can importantly cool down the beginning zone and conserve moisture .
conceive add urine - saving colloidal gel to the root word zone which will hold a taciturnity of water for the plant . These can make a world of difference especially under stressful circumstance . Be sure to follow recording label directions for their use .
Conditions : Normal Watering for Outdoor PlantsNormal wateringmeans that soil should be kept evenly moist and watered on a regular basis , as consideration require . Most plants like 1 in of water a calendar week during the growing season , but take tending not to over water . The first two years after a plant is installed , regular watering is important for establishment . The first year is decisive . It is better to water once a week and water deep , than to weewee frequently for a few minute . How - to : Reduce WateringThis plant ask less watering during wintertime months , so dilute lachrymation from belated November through other March .
Planting
A week to 10 days before planting , add together 2 to 4 inches of aged manure or compost and work into the planting site to better rankness and increase water retention and drainage . If soil paper is weak , a layer of topsoil should be weigh as well . No matter if your territory is sand or clay , it can be improved by adding the same thing : organic topic . The more , the better ; work out deep into the soil . organize layer to an 18 inch bass for perennials . This will seem like a tremendous amount of oeuvre now , but will greatly compensate off afterwards . Besides , this is not something that is easy done later , once plant have been established . How - to : Pruning Flowering ShrubsIt is necessary toprune your deciduous efflorescence shrubfor two reasons : 1 . By remove quondam , damaged or dead wood , you increase air flow , yielding in less disease . 2 . You restore new ontogeny which increase flower yield .
Pruning deciduous shrub can be divide into 4 groups : Those that requireminimal pruning(take out only dead , morbid , discredited , or cross leg , can be done in early spring.);spring pruning(encourages vigorous , new growth which produces summer flowers - in other parole , flowers appear on new wood);summer pruning after flower(after flowering , curve back shoot , and take out some of the old growth , down to the ground);suckering habit pruning(flowers appear on wood from previous twelvemonth . Cut back flowered root by 1/2 , to strong growing fresh shoots and remove 1/2 of the flowered stems a duo of column inch from the basis ) Always dispatch dead , damaged or morbid 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 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 beginning globe and deep enough to plant at the same level the shrub was in the container . If soil is poor , dig hole even wider and fill with a admixture half original soil and one-half compost or soil amendment .
Carefully remove bush from container and gently separate roots . Position in mall of maw , best side confront forward . Fill in with original filth or an amended mixture if call for as described above . For larger shrubs , build up a water well . Finish by mulching and water well .
If the flora is balled - and - burlapped , remove fasteners and fold back the top of natural burlap , tucking it down into trap , after you ’ve positioned shrub . Make certain that all gunny is buried so that it wo n’t wick water system away from rootball during hot , wry periods . If synthetic gunny , remove if potential . If not possible , cut away or make slits to earmark for roots to develop into the new territory . For big shrubs , construct a water well . Finish by mulch and watering well .
If shrub is bare - root , look for a discolouration somewhere near the base ; this scrape is likely where the grime line was . If soil is too sandy or too clayey , tote up organic matter . This will assist with both drainage and water supply holding capacity . Fill dirt , tauten just enough to support bush . Finish by mulch and watering well .
Problems
Prevention and Control : If possible , select insubordinate miscellanea . Keep nitrogen - heavy fertiliser to a lower limit as well as over - irrigating as they encourage plush growth . Practice crop rotation and prune out or better yet take away infected plant . Fungi : Powdery MildewPowdery Mildewis usually found on plants that do not have enough air circulation or adequate spark . problem are worse where night are cool and days are warm and humid . The powdery white or gray-headed fungus is unremarkably found on the upper surface of leaves or yield . Leaves will often change by reversal yellow-bellied or chocolate-brown , curl up , and drop off . New leafage emerges crinkled and distorted . Fruit will be shadow and often drops early .
Prevention and Control : Plant resistant variety and space plants decently so they receive tolerable light and strain circulation . Always water from below , keeping water off the foliation . This is paramount for rosebush . Go soft on the N fertilizer . enforce fungicides agree to recording label focussing before problem becomes severe and follow directions exactly , not missing any require treatment . Sanitation is a must - pick up and remove all leaves , flowers , or rubble in the fall and put down . gadfly : CaterpillarsCaterpillars are the unfledged form of moths and butterflies . They are voracious feeders attacking a wide variety of plants . They can be extremely destructive and are characterise as leafage feeders , prow borers , leaf curler , cutworm and tent - former .
Prevention and Control : keep weeds down , scout individual plant and remove caterpillar , apply label insecticides such as soaps and oils , take advantage of instinctive enemies such as parasitic WASP in the garden and utilise Bacillus thuringiensis ( biologic warfare ) for some caterpillar species . fungus : Leaf SpotsLeaf spots are induce by fungi or bacterium . Brown or black spots and patches may be either ragged or circular , with a water soaked or yellow - edged appearance . dirt ball , rain , dirty garden tool , or even people can help its spread .
Prevention and Control : take infected leaf when the plant is teetotal . Leaves that collect around the base of the flora should be crease up and disposed of . Avoid overhead irrigation if potential ; water should be guide at soil level . For fungous folio spots , use a recommend fungicide harmonise to recording label centering .
Pest : Leaf MinersLeaf Mineris actually a terminus that applies to various larvae ( of moth , beetle , and flies ) that tunnel between upper and lower foliage surface , leaving a typical , squiggly design . A distaff adult can lay several hundred eggs inside the leaf which hatch and give rise to mineworker . Leaf miner attack ornamentals and vegetables .
Prevention and Control : Keep dope down and scout individual plant for say - tale squiggles . Pick and destroy these foliage and take advantage of natural enemies such as parasitical white Anglo-Saxon Protestant . Know the Growing Degree Days ( GDD ) * for your area to aim insecticide sprays when most good for master the specific folio miner . Seek a professional good word and follow all recording label routine to a tee . * GDD number should be available from your local Cooperative Extension berth . Diseases : AnthracnoseAnthracnose is the result of a flora infection , do by a fungus , and may cause life-threatening defoliation , specially in Sir Herbert Beerbohm Tree , but rarely results in death . Sunken fleck on shank , fruit , leaves , or twigs , seem grayish brown , may seem washy , and have pinkish - sunburn spore masses that look slime - like . On veg , spots may blow up as fruit matures .
Prevention and Control : Once prove they are hard to operate . Isolate infested plants aside from those that are not infested . Consult your local garden pith professional or Cooperative Extension office in your county for a effectual recommendation regarding their control . Encourage natural enemies such as leechlike wasps in the garden . Diseases : BlightBlights are get by fungi or bacteria that kill plant life tissue . symptom often show up as the rapid staining or wilt of foliage . There are many unlike blight , specific to various plants , each requiring a varied method acting of control .
Miscellaneous
The most significant thing to consider is getting sufficient water take up into the slash bow . Insufficient piss can result in droop and short - lived flowers . dead set neck of roses , where the flower point droop , is the result of poor water consumption . To maximise water intake , first re - cut the stems at an angle so that the vascular system ( the " " plumbing " " of the stem ) is absolved . Next immerse the cut stems in warm water system .
Remember when the flower is cut , it is cut off from its food provision . Once water is taken upkeep of , food is the resource that will consort out next . The plants stems naturally bung the efflorescence with sugars . If you add a minute of sugar ( 1 tsp . ) to the vase water , this will aid feed the bloom stems and gallop their vase life .
bacterium will build up in vase water supply and eventually clog up the stem so the flower can not take up water supply . To prevent this , change the vase water frequently and make a new cutting in the stem turn every few days .
flowered preservatives , available from florists , contain cabbage , acids and bacteriacides that can extend slue flower sprightliness . These come in small packets and are generally uncommitted where snub flowers are sold . If used by rights , these can extend the vase life history of some cut flowers 2 to 3 time when compared with just plain water in the vase . gloss : TolerantTolerant refer to a industrial plant ’s ability to bear exposure to an outside condition(s ) . It does not mean that the plant thrives or prefer this situation , but is able to adapt and continue its life wheel . Glossary : VirusesViruses , which are smaller than bacteria , are not endure and do not replicate on their own . They must rely on the cellular mechanisms of their hosts to replicate . Because this greatly break up the cadre ’s functionality , outbound signs of a viral infection effect in a works disease with symptoms such as abnormal or scrubby ontogeny , damaged fruit , discolorations or spots .
Prevention and Control : Keep computer virus toter such as aphids , leafhoppers , and thrips under control . These plant life eating insects spread viruses . virus can also be inclose by infected pollen or through plant initiative ( as when pruning ) . set out bykeeping the pathogen outof your garden . New plants should be checked , as well as tools and exist plant . Use only certified semen that is deemed disease - liberal . plant life only immune varietiesandcreate a discouraging environmentby rotating crops , not plant intimately related flora in the same surface area every yr . Glossary : Growth BudsPlant stem stop legion bud that will grow and reincarnate a works when stimulated by pruning . There are three canonical types of bud : terminal , lateral and abeyant . Terminal buds are at the peak of twigs or branches . They develop to make the subdivision or twig longer . In some cases they may give rise to a blossom . If you cut the tip of a branch and remove the concluding bud , this will encourage the lateral buds to grow into side offset leave in a thick , shaggy plant life . Lateral bud are downcast down on the twig and are often at the point of leaf fond regard . Pruning them encourages the terminal bud , resulting in a foresightful , thin offshoot . Dormant buds may remain inactive in the bark or prow and will only grow after the plant is cut back . Glossary : PruningNow is the preferred time to prune this plant life .