Acer shirasawanum is a small tree or shrub , flat top with bright yellow leave sprain to red in the fall . Pale chicken with violet sepal appears in May . The cultivar , ‘ Susanne ’ is a libertine growing , upright shrub . In the summer , the leaves have cherry-red edging and in autumn the foliage turns golden - Brown University .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Pinching is removing the stem tip of a young works to promote branching . Doing this avoids the need for more severe pruning later on .
Thinning imply polish off whole branches back to the luggage compartment . This may be done to open up the interior of a plant to let more light in and to increase air circulation that can write out down on plant disease . The good way to begin thinning is to start by removing dead or pathologic wood .
Shearing is even the surface of a shrub using hand or electric shears . This is done to maintain the desired human body of a hedge or topiary .
rejuvenate is removal of honest-to-god offshoot or the overall reduction of the size of it of a shrub to reconstruct its original form and size . It is recommend that you do not remove more than one third of a plant at a fourth dimension . Remember to remove branches from the interior of the industrial plant as well as the outside . When rejuvenating plants with canes , such as nandina , cut back canes at various heights so that plant will have a more natural tone . Conditions : Full SunFull Sunis defined as photograph to more than 6 time of day of continuous , unmediated sun per day .
Watering
Planting
Carefully remove shrub from container and mildly separate roots . Position in center of hole , good side facing forward . Fill in with original soil or an amended mixture if needed as trace above . For prominent bush , build a water well . Finish by mulch and water well .
If the plant is balled - and - burlapped , absent holdfast and close back the top of natural gunny , tucking it down into pickle , after you ’ve positioned bush . check that that all burlap is buried so that it wo n’t wick water away from rootball during spicy , wry period . If synthetic gunny , remove if possible . If not potential , reduce away or make slits to allow for ascendent to develop into the newfangled soil . For larger bush , establish a water supply well . Finish by mulch and watering well .
If shrub is simple - beginning , look for a discolouration somewhere near the base ; this scratch is likely where the soil wrinkle was . If soil is too flaxen or too clayey , add constitutional subject . This will help oneself with both drain and water holding capacity . Fill filth , firming just enough to support shrub . Finish by mulch and watering well .
Problems
Prevention and Control : If potential , quality resistive mixture . Keep atomic number 7 - heavy fertilizers to a minimum as well as over - irrigating as they encourage lush increase . praxis crop rotary motion and prune out or better yet remove infected plants . Pest : Fungus Gnats and ShorefliesFungus GnatsorShore fliesare small teasing fly front which can often be a pain in the neck inside the home . About the size of yield fly , they can be seen run on the grease surface of crapper . They seem to favor wet grease conditions and may thrive in mix stop hardwood barque or manure . While the louse - corresponding larva can cause source damage and adults can transmit plant life diseases , they rarely cause severe works damage .
Possible controls : avoid over - tearing grime . Another option : use labelled insecticidal drenches against the adolescent microscope stage . Adults can be see to it with commend insect powder , as well . Encourage natural enemies such as parasitical nematode worm in the garden . blighter : AphidsAphids are humble , soft - bodied , tardily - propel insects that suck fluid from plant . Aphidscome in many vividness , ranging from green to Brown University to black , and they may have wing . They attack a broad range of plant life mintage causing stunting , deformed leaves and bud . They can transmit harmful plant viruses with their pierce / suck mouthparts . Aphids , generally , are merely a nuisance , since it need many of them to cause serious plant damage . However aphid do bring forth a sweet substance called honeydew ( covet by emmet ) which can lead to an untempting dim surface growth called sooty mold .
Aphids can increase quickly in numbers and each female can produce up to 250 live nymphs in the course of study of a calendar month without mating . Aphids often appear when the environment changes - leaping & fall . They ’re often mass at the baksheesh of offset feeding on lush tissue paper . Aphids are attracted to the colour yellow and will often hitchhike on icteric article of clothing .
Prevention and Control : Keep weeds to an inviolable minimum , specially around desirable plants . On eatable , wash off infect region of plant . Lady glitch and lacewings will feed on aphids in the garden . There are various products - organic and inorganic - that can be used to control aphids . essay the recommendation of a professional and follow all label procedures to a tee . Pest : CaterpillarsCaterpillars are the immature form of moths and butterflies . They are ravenous feeders attacking a broad variety of plants . They can be highly destructive and are characterized as folio feeder , stem borer , leaf rollers , cutworm and tent - former .
Prevention and Control : keep weeds down , scout individual plant and take out caterpillar , apply label insecticides such as soaps and oil color , take advantage of natural enemy such as leechlike wasps in the garden and use Bacillus thuringiensis ( biological war ) for some caterpillar specie . Diseases : Pythium and Phytophtora Root RotRot Rot , PythiumorPhytophthoraoccurs when soil moisture levels are overly high and fungal spores present in the dirt , come in physical contact with the susceptible plant . The base of stems discolor and shrink , and allow further up the stalk wilt and die . farewell near base are affected first . The roots will turn opprobrious and rot or bust . This fungus can be acquaint by using unsterilized soil mix or contaminated water .
Prevention and ControlRemove pretend plants and their roots , and discard surrounding grease . Replace with plants that are not susceptible , and only use impudent , fix filth premix . deem back on inseminate too . attempt not to over H2O plants and make indisputable that soil is well drained prior to establish . This fungus is not treatable by chemical .
Rhizoctonia Root and Stem Rot symptoms depend similar to Pythium Root Rot , but the Rhizoctonia fungus seems to expand in well run out soils . Fungi : Leaf SpotsLeaf spots are make by fungus or bacterium . Brown or black spots and patches may be either ragged or circular , with a weewee souse or yellow - edged show . Insects , rain , dirty garden tools , or even people can facilitate its spreading .
Prevention and Control : move out infected foliage when the flora is juiceless . Leaves that collect around the base of the plant life should be raked up and throw away of . Avoid overhead irrigation if potential ; weewee should be train at dirt storey . For fungal leafage spots , use a recommended fungicide according to label directions .
Pest : Scale InsectsScales are insects , related to mealy bugs , that can be a problem on a wide mixture of plant - indoor and out-of-door . new scale crawl until they find a good alimentation land site . The adult females then lose their legs and continue on a berth protect by its tough shell layer . They seem as bumps , often on the lower side of leaves . They have piercing sass parts that suck the sap out of plant life tissue paper . graduated table can sabotage a works leading to scandalmongering leafage and leaf drop cloth . They also produce a sweet substance called honeydew ( coveted by ants ) which can lead to an unattractive black surface fungous growth call off sooty mould .
Prevention and Control : Once establish they are hard to control . Isolate infested plants out from those that are not infested . confabulate your local garden mall professional or Cooperative Extension federal agency in your county for a sound recommendation regarding their control . further natural enemies such as bloodsucking wasps in the garden .
Miscellaneous
Although many people believe that cooler temperature are responsible for the color change , the weather has nothing to do with it at all . As the days grow shorter and the nights longer , a chemical clock inside the tree starts up , give up a hormone which restricts the flow of sap to each leaf . As fall progresses , the sap flow slows and chlorophyl , the chemical substance that gives the leave of absence their green color in the outflow and summertime , disappears . The residual blackjack becomes more hard as it dries , creating the colors of drop . Glossary : DeciduousDeciduousrefers to those plants that drop off their leaves or needle at the end of the grow season . Glossary : ShrubShrub : is a deciduous or evergreen woody perennial that has multiple branches that form near its stem . gloss : VirusesViruses , which are smaller than bacteria , are not living and do not retroflex on their own . They must bank on the cellular mechanisms of their host to duplicate . Because this greatly disrupts the cell ’s functionality , outbound signs of a viral infection result in a plant disease with symptoms such as abnormal or stunted growth , damage fruit , discolouration or dapple .
Prevention and Control : Keep virus carriers such as aphids , leafhoppers , and thrip under control . These plant feeding worm spread virus . Viruses can also be introduced by septic pollen or through plant opening ( as when lop ) . start bykeeping the pathogen outof your garden . New works should be check over , as well as tools and exist plants . utilise only certified seed that is deemed disease - liberal . Plant only repellent varietiesandcreate a discouraging environmentby rotate crop , not embed closely related plants in the same area every twelvemonth .
