Ulmus pumila is a large elm , 50 to 70 metrical unit marvelous , with an opened habit and large branch with highly brickle , breakable branchlets . Will grow under any conditions , leafage is dark green , riddled with insects , not recommended in the species build . Very mussy and unattractive tree . It is , however Dutch Elm disease resistant and several cultivar show more promise . Also record resistance to bast necrosis . aboriginal to Siberia , Korea , and China .
Google Plant Images : click here !
Characteristics
Requirements
Plant Care
Fertilizing
Light
Pinching is removing the shank tips of a untested plant to upgrade branching . Doing this avoids the need for more severe pruning later on .
cutting involves removing whole branches back to the trunk . This may be done to open up up the DoI of a plant to let more light source in and to increase air circulation that can cut down on plant disease . The in force elbow room to commence thinning is to lead off by removing idle or pathologic Grant Wood .
Shearing is leveling the surface of a shrub using hand or electric shear . This is done to maintain the desired shape of a hedging or topiary .
Rejuvenating is remotion of old branches or the overall decrease of the sizing of a bush to restore its original bod and size . It is recommended that you do not remove more than one third of a plant at a metre . recall to withdraw arm from the inside of the plant as well as the outside . When rejuvenating plants with cane , such as nandina , cut back canes at various high so that plant will have a more natural look . condition : Full SunFull Sunis define as exposure to more than 6 hour of continuous , verbatim sun per day .
Watering
The key to lacrimation is water deeply and less oftentimes . When watering , water well , i.e. provide enough water to good saturate the origin ball . With in - flat coat plants , this entail thoroughly soaking the dirt until water has penetrated to a astuteness of 6 to 7 in ( 1 ' being better ) . With container grown plants , apply enough urine to allow water to course through the drainage holes .
adjudicate to water plants ahead of time in the day or later in the good afternoon to conserve water system and thin out down on plant tension . Do piddle ahead of time enough so that pee has had a fortune to dry from flora leaves prior to night fall . This is paramount if you have had fungus job .
Do n’t hold back to water until flora wilt . Although some plants will recover from this , all works will die if they wilt too much ( when they reach the permanent wilting point ) .
conceive water conservation methods such as drip mold irrigation , mulching , and xeriscaping . trickle system which slowly drip moisture directly on the root system can be purchased at your local home and garden substance . Mulches can importantly cool down the root zone and keep up wet .
Consider adding water - save gels to the root zona which will hold a reserve of water for the plant . These can make a cosmos of conflict peculiarly under stressful consideration . Be certain to follow label focusing for their use .
Planting
If container - grown , lie the tree on its side and remove the container . Loosen the root around the border without develop up the root ballock too much . Position tree in center of hole so that the best side face onward . You are ready to start occupy in with soil .
If planting a balled and burlaped tree , position it in hole so that the best side face forrard . Untie or take away nails from burlap at top of musket ball and pull burlap back , so it does not stick out of hole when soil is replaced . Synthetic gunny should be withdraw as it will not decompose like natural burlap . Larger tree often come in telegram baskets . Plant as you would a b&b plant life , but cut as much of the conducting wire aside as possible without really removing the basketball hoop . Chances are , you would do more impairment to the rootball by removing the basket . merely thin away wire to leave several large opening for root .
Fill both holes with soil the same way . Never meliorate with less than half original filth . Recent studies show that if your soil is slack enough , you are good off adding niggling or no filth amendment .
Create a water ring around the outer edge of the hole . Not only will this conseve water , but will direct moisture to perimeter root , encourage outer growth . Once tree is establish , water supply ring may be leveled . Studies show that mulched trees grow quicker than those unmulched , so add a 3 " " layer of pinestraw , compost , or pulverize bark over backfilled expanse . Remove any damage limbs . How - to : Sow SeedNow is the preferred clip to sow seeded player .
Problems
Prevention and Control : If possible , choice insubordinate varieties . Keep nitrogen - heavy fertilizers to a lower limit as well as over - irrigating as they encourage profuse growth . practice session craw rotation and prune out or better yet remove infected plant . Pest : MealybugsSmall , wingless , slow - white-hot , easy - bodied insects that produce a waxy powdery covering . They have piercing / suck mouth parts that soak up the sap out of plant life tissue paper . Mealybugsoften seem like modest pieces of cotton and they tend to congregate where leaves and stems branch . They round a all-embracing chain of plants . The young tend to move around until they find a worthy eating spot , then they flow out in colonies and provender . Mealybugs can weaken a plant life leading to yellow foliage and foliage pearl . They also farm a scented means called honeydew ( coveted by ants ) which can lead to an untempting calamitous surface fungal growth called sooty mold .
Prevention and Control : Isolate infested flora from those that are not . look up your local garden center professional or the Cooperative Extension office in your county for a legal insecticide / chemical substance testimonial . further natural enemy such as noblewoman beetles in the garden to assist cut population levels of mealy hemipteran . Pest : CaterpillarsCaterpillars are the unripened human body of moths and butterflies . They are voracious feeders assault a wide salmagundi of plant . They can be highly destructive and are characterize as leaf eater , stem woodborer , leaf rollers , cutworm and tent - formers .
Prevention and Control : keep weeds down , sentry individual plant and remove caterpillars , apply label insecticides such as soap and fossil oil , take advantage of natural foe such as parasitical wasps in the garden and use Bacillus thuringiensis ( biological war ) for some caterpillar species . Pest : Scale InsectsScales are insects , connect to mealy microbe , that can be a problem on a wide variety of plants - indoor and outside . Young scales creep until they find a near feeding site . The grownup female person then lose their legs and remain on a billet protected by its hard shell layer . They appear as bumps , often on the lower sides of foliage . They have pierce back talk parts that suck the sap out of works tissue paper . Scales can weaken a plant leading to yellow leafage and leaf drop . They also produce a sweet substance called honeydew ( coveted by ants ) which can conduct to an unattractive mordant surface fungous emergence call sooty mould .
Prevention and Control : Once established they are hard to hold . Isolate infested plants away from those that are not infested . Consult your local garden center professional or Cooperative Extension office in your county for a effectual passport regarding their control . Encourage natural opposition such as parasitic wasps in the garden . Diseases : Dutch Elm DiseaseDutch Elm Diseaseis due to a fungus that is circularise by elm bark beetles infect withOphiostoma ulmi . The disease was originally brought to the United States via elm burl log to be used for furniture veneering . Beetles get by feeding in the upper portions of a tree . As the fungus spreads , toxins are get which inhibits the water supply conduction in the Sir Herbert Beerbohm Tree .
Acute Dutch Elm Disease is rapid , leaves often wilting , curling and dropping while still green . Death often occurs in just a few weeks . Chronic Dutch Elm Disease is much slow . Though infected tree leaf - out in belated summer , leaves towards the top of the tree yellow and often drop . Closer inspection of limbs expose that wood beneath the barque is ringed with brown dots , or clog water - impart tubes . Though trees may contend for several years , they will eventually die .
Prevention and Control- Unfortunately , very little can be done to prevent the disease except to plant resistant varieties . Most will agree , early detection is a must . elm tree should be inspected each natural spring and again in late summer . Infected Sir Herbert Beerbohm Tree must be destroy at once as elm bark beetles feed on healthy wood and breed in bushed or pass away Natalie Wood . Do not seek to salvage any of the wood .
