Robinia fertilis is a small deciduous bush , propagate and suckering , unremarkably 6 to 10 pes tall . folio are alternative , compound - pinnate , dark dark-green colouring . blossom are pinkish , or pallid purple , borne on 2 to 4 column inch racemes , and are quite showy . flower are follow by fluid , brown seed cod . super stalwart , survives all territory except wet . Will grow in sterile sandy soil , atomic number 7 fixing plant , tolerant of saline and dry term . A good industrial plant for slope stabilization , waste product area , reclamation employment . smorgasbord have been developed by the Soil Conservation Service . Can be capable to various diseases . Prune in tardy summertime or dusk , will ‘ bleed ’ in outflow . aboriginal from North Carolina to Georgia . Several cultivars are available .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
The key to watering is water profoundly and less often . When watering , water well , i.e. allow for enough water to thoroughly saturate the root Lucille Ball . With in - ground plant , this means soundly pluck the soil until urine has riddle to a depth of 6 to 7 inches ( 1 ' being better ) . With container grown plants , put on enough piss to appropriate water to flow through the drainage cakehole .
attempt to irrigate plant early in the day or later on in the good afternoon to preserve water and cut down on plant life stress . Do water early enough so that water has had a chance to dry from flora leaves prior to nighttime fall . This is predominate if you have had fungus problems .
Do n’t wait to urine until plants wilt . Although some plant will recover from this , all industrial plant will die if they droop too much ( when they reach the permanent wilting gunpoint ) .
Consider water supply conservation methods such as drip irrigation , mulching , and xeriscaping . Drip systems which tardily drip wet directly on the root system can be purchased at your local home and garden gist . mulch can significantly cool down the root geographical zone and economize moisture .
Consider adding water - saving gel to the ancestor zone which will hold a taciturnity of water for the plant . These can make a world of difference peculiarly under nerve-racking weather . Be sure to follow label directions for their enjoyment .
Planting
Pruning deciduous shrub can be divided into 4 groups : Those that requireminimal pruning(take out only dead , pathological , discredited , or crossed outgrowth , can be done in other spring.);spring pruning(encourages vigorous , new growth which farm summertime flowers - in other words , blossom come out on new wood);summer prune after flower(after flowering , cut off back shoot , and take out some of the old growth , down to the ground);suckering habit pruning(flowers appear on wood from premature year . Cut back flowered stems by 1/2 , to strong maturate new shoots and slay 1/2 of the flowered stems a couple of in from the primer ) Always remove numb , damaged or diseased 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 . Summer after bloom : 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 the root musket ball and deep enough to implant at the same level the shrub was in the container . If soil is poor , dig hole out even wider and fill with a mixture half original dirt and half compost or stain amendment .
cautiously murder bush from container and gently separate ascendent . Position in center of hole , good side present forward . Fill in with original soil or an amended mixture if require as account above . For larger shrubs , build a water well . Finish by mulch and water well .
If the industrial plant is balled - and - burlapped , absent fastener and fold back the top of natural burlap , tucking it down into pickle , after you ’ve positioned shrub . ensure that all gunny is bury so that it wo n’t wick water away from rootball during live , dry periods . If synthetic burlap , take away if possible . If not possible , cut away or make slits to allow for roots to develop into the new soil . For larger shrubs , work up a water well . Finish by mulching and irrigate well .
If shrub is bare - root , look for a discolouration somewhere near the base ; this mark is likely where the soil line was . If stain is too sandy or too clayey , add constituent matter . This will facilitate with both drainage and piss retention capacity . Fill filth , tauten just enough to support shrub . Finish by mulching and watering well .
Problems
Prevention and Control : Plant resistant varieties and space plants decently so they receive adequate lightness and airwave circulation . Always water from below , keeping water off the leaf . This is preponderant for rosiness . Go tardily on the nitrogen fertilizer . Apply fungicides accord to recording label focusing before job becomes severe and follow direction incisively , not lose any required treatments . Sanitation is a must - make clean up and remove all parting , flowers , or detritus in the gloam and destruct . fungus kingdom : Leaf SpotsLeaf spot are due to fungus kingdom or bacteria . Brown or pitch-black spots and patches may be either ragged or orbitual , with a H2O soaked or yellow - edged appearance . dirt ball , pelting , muddied garden tools , or even people can help its facing pages .
Prevention and Control : murder infect farewell when the plant is dry . farewell that compile around the base of the plant should be scan up and disposed of . Avoid overhead irrigation if possible ; water should be directed at stain level . For fungous leaf pip , use a recommend fungicide according to label directions .
Pest : Leaf MinersLeaf Mineris actually a full term that applies to various larva ( of moth , beetles , and fly ) that tunnel between upper and abject leaf surfaces , leaving a classifiable , squiggly normal . A distaff adult can rest several hundred eggs inside the leaf which hatching and give rise to miner . Leaf miner attack ornamentals and vegetables .
Prevention and Control : Keep weeds down and sentry case-by-case works for tell - taradiddle squiggles . Pick and destroy these leave and take reward of rude enemies such as parasitic white Anglo-Saxon Protestant . Know the Growing Degree Days ( GDD ) * for your area to target insecticide sprays when most beneficial for verify the specific folio mineworker . Seek a professional testimonial and conform to all label procedure to a football tee . * GDD numeral should be usable from your local Cooperative Extension office . Pest : Scale InsectsScales are worm , related to mealy bugs , that can be a problem on a wide-cut assortment of plants - indoor and outside . youthful scales crawl until they find a good feeding web site . The adult females then lose their leg and remain on a spot protected by its hard shell level . They appear as gibbousness , often on the lower sides of leaves . They have piercing mouth parting that give suck the sap out of plant tissue . Scales can weaken a industrial plant direct to yellow leafage and leaf drop . They also produce a sweet meaning called honeydew ( covet by pismire ) which can lead to an untempting disgraceful surface fungous growth called pitchy mold .
Prevention and Control : Once established they are hard to control . Isolate infested plants away from those that are not infested . Consult your local garden center professional or Cooperative Extension part in your county for a effectual passport regarding their ascendency . advance natural enemies such as parasitic WASP in the garden .
