genus Ulmus rubra is a intermediate - tall aboriginal elm , produce 40 to 60 foundation tall . ontogenesis habit is somewhat vase - shaped . This species can become a weed , taking over vacant ground , unmaintained sites . Prefers rich , moist , soil , but adaptable to dry , limey soils as well . The name “ Slippery Elm ” was infer from the slimy , pasty internal bark used in the herbaceous plant trade . Unfortunately it is subject to Dutch Elm Disease . Native from Quebec to Florida , west to Texas .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Pinching is remove the stem steer of a young plant to promote branch . Doing this avoids the need for more severe pruning after on .
cutting involves remove whole branches back to the trunk . This may be done to open up the inside of a plant to let more light in and to increase air travel circulation that can thin out down on flora disease . The best way to begin cutting is to start by removing dead or diseased wood .
Shearing is level off the control surface of a shrub using bridge player or electric shear . This is done to maintain the hope shape of a hedge or topiary .
Rejuvenating is remotion of quondam branch or the overall reduction of the size of a shrub to restore its original form and sizing . It is commend that you do not take out more than one third of a plant life at a time . think back to remove branches from the inside of the industrial plant as well as the outside . When rejuvenating flora with canes , such as nandina , cut back canes at various summit so that plant will have a more natural look .
Watering
The headstone to tearing is piddle deep and less often . When watering , water well , i.e. provide enough water to good saturate the root ball . With in - ground plants , this signify exhaustively soaking the soil until water has pervade to a depth of 6 to 7 inches ( 1 ' being sound ) . With container grown plants , use enough piss to allow water system to fall through the drain holes .
try out to water works early in the day or later in the good afternoon to conserve water and trim down down on plant life focus . Do urine early on enough so that water has had a chance to dry from plant leaves prior to night drop . This is paramount if you have had fungus problems .
Do n’t wait to water until plant droop . Although some plants will regain from this , all plants will die if they droop too much ( when they accomplish the permanent wilting point ) .
Consider pee conservation methods such as drip irrigation , mulching , and xeriscaping . drip mould system which slowly dribble moisture straight off on the tooth root system can be purchase at your local home and garden center . Mulches can significantly cool down the root zone and conserve wet .
look at adding water - save up colloidal gel to the antecedent zone which will hold a modesty of pee for the plant . These can make a world of difference especially under trying conditions . Be certain to follow recording label directions for their economic consumption .
Planting
If container - grown , dwell the tree diagram on its side and remove the container . undo the roots around the edges without breaking up the root clump too much . Position tree diagram in center of hole so that the best side face onward . You are quick to begin fill up in with soil .
If planting a balled and burlaped tree , position it in jam so that the ripe side faces forward . loosen or remove nails from burlap at top of ball and rip gunny back , so it does not stick out of mess when soil is replaced . Synthetic gunny should be removed as it will not decompose like rude burlap . Larger trees often descend in telegram baskets . Plant as you would a b&b plant , but dilute as much of the wire aside as potential without really take away the basket . Chances are , you would do more damage to the rootball by dispatch the hoop . only cut away wires to pass on several magnanimous openings for roots .
satiate both holes with filth the same way . Never amend with less than half original soil . Recent studies show that if your soil is loose enough , you are in effect off adding little or no soil amendment .
make a water closed chain around the stunned edge of the trap . Not only will this conseve water supply , but will direct wet to perimeter stem , boost kayoed growth . Once tree diagram is established , water ring may be even out . work show that mulched tree diagram grow quicker than those unmulched , so tot a 3 " " bed of pinestraw , compost , or pulverized barque over backfilled area . Remove any damaged limbs . How - to : Sow SeedNow is the preferred meter to sow in seed .
Problems
Prevention and Control : If potential , select immune varieties . Keep nitrogen - heavy fertilizer to a minimum as well as over - irrigating as they encourage exuberant increment . recitation crop rotation and prune out or intimately yet remove infected plant . Pest : MealybugsSmall , wingless , dull - white , soft - incarnate insects that acquire a waxy powdery covering . They have piercing / wet-nurse lip part that suck the sap out of plant tissue paper . Mealybugsoften count like little pieces of cotton wool and they lean to congregate where leaves and stems offset . They round a wide range of plants . The immature tend to move around until they find a suitable feeding blot , then they hang out in colonies and feed . Mealybugs can weaken a plant leading to jaundiced foliage and leaf drop . They also produce a sweet kernel call honeydew ( covet by ants ) which can direct to an unattractive black surface fungous growth called jet-black mould .
Prevention and Control : Isolate infested plants from those that are not . refer your local garden core professional or the Cooperative Extension office in your county for a sound insecticide / chemical recommendation . Encourage instinctive enemies such as dame beetles in the garden to help reduce universe level of mealy glitch . gadfly : CaterpillarsCaterpillars are the immature configuration of moth and butterfly . They are voracious feeders attacking a wide variety of plants . They can be highly destructive and are characterize as leaf feeders , stem borers , leaf rollers , cutworm and tent - formers .
Prevention and Control : keep sens down , scout single plants and get rid of cat , apply mark insecticide such as soaps and oil colour , take advantage of natural foe such as parasitic wasps in the garden and use Bacillus thuringiensis ( biologic warfare ) for some caterpillar species . blighter : Scale InsectsScales are insects , related to mealy bugs , that can be a problem on a panoptic variety of plants - indoor and outdoor . Young scale crawl until they observe a skillful eating site . The adult females then lose their legs and rest on a smirch protected by its heavy shell bed . They seem as bumps , often on the lower side of leaves . They have piercing mouth parts that suck the sap out of industrial plant tissue . scale can weaken a plant leading to yellow foliage and leaf drop . They also bring about a sweet substance call honeydew ( covet by emmet ) which can precede to an unattractive smutty surface fungal emergence call pitchy mold .
Prevention and Control : Once establish they are hard to command . Isolate infest plants forth from those that are not infested . Consult your local garden meat professional or Cooperative Extension office in your county for a legal recommendation regarding their control . Encourage natural enemy such as parasitic white Anglo-Saxon Protestant in the garden . Diseases : Dutch Elm DiseaseDutch Elm Diseaseis triggered by a fungus that is spread by elmwood bark beetles infected withOphiostoma ulmi . The disease was in the beginning brought to the United States via elm burl log to be used for furniture veneer . Beetles begin by feeding in the upper portions of a tree . As the fungus spreads , toxins are produced which inhibits the water conductivity in the Sir Herbert Beerbohm Tree .
Acute Dutch Elm Disease is rapid , leaves often wilt , curling and dropping while still green . Death often fall out in just a few weeks . Chronic Dutch Elm Disease is much wearisome . Though infected trees leafage - out in late summer , leaves towards the top of the tree yellow and often overlook . near review of limbs let out that forest beneath the bark is ring with brown dot , or clogged urine - direct tubes . Though Tree may struggle for several years , they will finally die .
Prevention and Control- unluckily , very little can be done to prevent the disease except to plant resistant varieties . Most will agree , early sleuthing is a must . Elms should be audit each give and again in former summertime . infect trees must be destroyed immediately as elm barque beetles feed on healthy wood and breed in dead or die wood . Do not hear to salvage any of the wood .
