H. sargentiana , syn . H. aspera subsp . sargentiana is not well known in the United States outside of the Pacific Northwest , where it performs well . Leaves are diametric , childlike and ovate . The leaves are densely hairy below and the stems also have bristly hairs . The flowers come out in mid summer on 6 - 9 in wide corymb with large , showy , sterile florets on the outside boundary that are a rich rosy - lilac . need moisture and shade , aboriginal to key China . Introduced 1907 .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
Watering
Planting
Pruning deciduous bush can be separate into 4 groups : Those that requireminimal pruning(take out only drained , diseased , damaged , or crossed branches , can be done in early spring.);spring pruning(encourages vigorous , young growth which produces summertime flowers - in other Word of God , flowers come along on new wood);summer pruning after flower(after flowering , write out back shoots , and take out some of the old growth , down to the ground);suckering habit pruning(flowers appear on Mrs. Henry Wood from previous year . Cut back bloom stems by 1/2 , to warm growing new shoots and take 1/2 of the flowered stems a couple of inch from the ground ) Always transfer all in , damaged or diseased Sir Henry Wood first , no matter what type of pruning you are doing .
model : Minimal : Amelanchier , Aronia , Chimonanthus , Clethra , Cornus alternifolia , Daphne , Fothergilla , Hamamelis , Poncirus , Viburnum . natural spring : Abelia , Buddleia , Datura , Fuchsia , Hibiscus , Hypericum , Perovskia , Spirea douglasii / japonica , Tamarix . summertime 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 sizing of the root testis and recondite enough to found at the same level the bush was in the container . If stain is poor , dig hole even full and fill with a assortment half original ground and half compost or soil amendment .
Carefully remove bush from container and gently separate roots . Position in center of fix , good side face forward . Fill in with original soil or an amended mixture if needed as described above . For larger shrubs , establish a water well . Finish by mulching and watering well .
If the plant is ball - and - burlapped , remove fasteners and fold back the top of rude burlap , pucker it down into hole , after you ’ve place shrub . check that that all burlap is buried so that it wo n’t wick water forth from rootball during blistering , dry period . If synthetic burlap , remove if potential . If not possible , cut away or make snatch to permit for roots to recrudesce into the newfangled soil . For bigger shrub , work up a weewee well . Finish by mulch and watering well .
If shrub is barren - ascendant , look for a discolouration somewhere near the base ; this mark is probable where the soil channel was . If land is too sandy or too clayey , add organic subject . This will serve with both drainage and water property content . Fill soil , firming just enough to sustain shrub . Finish by mulching and watering well . How - to : Planting PerennialsDetermine appropriate perennial for your garden by consider Dominicus and shade through the day , exposure , piss requirements , climate , ground make-up , seasonal color trust , and position of other garden plants and tree diagram .
The best times to institute are spring and crepuscle , when soil is workable and out of danger of icing . twilight plantings have the advantage that roots can recrudesce and not have to contend with developing top growth as in the spring . Spring is more desirable for perennial that dislike wet condition or for cold areas , allowing full organization before first wintertime . Planting in summertime or wintertime is not advisable for most plants , unless planting a more build sized works .
To plant container - grown plants : Prepare constitute holes with appropriate depth and space between . irrigate the industrial plant good and let the excess water system drainage before cautiously removing from the container . cautiously loosen the rootage glob and place the plant in the maw , solve soil around the roots as you fill . If the flora is extremely root bound , separate roots with fingers . A few dent made with a pocket tongue are ok , but should be kept to a minimum . Continue filling in stain and H2O thoroughly , protecting from verbatim Sunday until stable .
To found bare - root plant : Plant as soon as possible after leverage . Prepare suitable planting holes , spread root and work grime among roots as you fill in . Water well and protect from direct sun until stable .
To plant seedlings : A turn of perennial get self - seed seedlings that can be transfer . You may also start your own seedling bed for transplanting . set up suitable planting holes , spacing suitably for plant development . Gently lift the seedling and as much surrounding soil as potential with your garden trowel , and replant it instantly , tauten stain with fingertips and water system well . Shade from lineal sun and water regularly until unchanging .
Problems
Prevention and Control : institute repellent variety and ply maximal atmosphere circulation . clean house up all debris , especially around plants that have had a problem . Do not water from overhead and water only during the daylight so that plants will have enough time to dry out before night . Apply a fungicide mark for rust on your flora . fungus : Leaf SpotsLeaf spots are get by fungi or bacteria . Brown or black spots and patches may be either ragged or round , with a water soaked or yellow - march coming into court . insect , rain , muddied garden tools , or even people can help its spread .
Prevention and Control : Remove infected leaves when the works is dry . leaf that hoard around the base of the industrial plant should be rake up and cast out of . Avoid overhead irrigation if potential ; water should be directed at dirt degree . For fungal leaf spots , employ a recommended fungicide according to label directions .
Miscellaneous
To turn your hydrangea down , utilize aluminum sulphate to the soil in other spring . For a pink hydrangea , add lime . The exact amount will ultimately be determine by your existing dirt pH. It often takes a all over uprise season to see results , so be patient . Glossary : FertilizeFertilize just before new growth begins with a staring fertilizer .
