This vigorous cultivar has lancet - form to ellipse or warmheartedness - regulate , more or less wavy , bright green leafage . Violet flowers are borne in midsummer . Hardy perennial for shaded gardens with large , bold leaves often mark with contrasting colors . foliage range in form from cycle to shaft - shaped , and colors can be jaundiced to unripe to blue , often with white , sensationalistic or green marginal markings . Lavender or whitened flowers grow on stalk in early summer . rattling contrast when planted with small - leaved plants , adding texture to the landscape .
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Characteristics
Requirements
Plant Care
Fertilizing
Light
fond shademeans that an country receive filtered light , often through tall branch of an open growing tree . Root competition is usually less . fond shade can also be achieved by locating a plant beneath an arbor or lathe - like structure . Shadier side of a construction are normally the northern or northeastern sides . These side also tend to be a little tank . It is not uncommon for plants that can tolerate full sunlight or some sun in cooler climate to require some tint in fond climates due to stress locate on the plant from reduced wet and excessive heating .
Watering
Planting
A week to 10 day before planting , add 2 to 4 in of senior manure or compost and work into the planting site to improve fertility and increase water retention and drain . If dirt composition is weak , a level of topsoil should be consider as well . No matter if your land is sand or remains , it can be improve by add the same thing : constitutive matter . The more , the better ; influence late into the soil . get up bottom to an 18 column inch deep for perennials . This will seem like a howling amount of oeuvre now , but will greatly give off by and by . Besides , this is not something that is easily done later , once plant have been found . How - to : Planting PerennialsDetermine appropriate perennials for your garden by believe Sunday and shade through the solar day , photo , water requirements , climate , soil makeup , seasonal color desired , and position of other garden plants and tree .
The salutary times to implant are spring and fall , when soil is workable and out of danger of frost . Fall plantings have the advantage that roots can acquire and not have to compete with developing top ontogeny as in the natural spring . Spring is more suitable for perennial that dislike wet conditions or for colder areas , admit full establishment before first winter . Planting in summer or winter is not advisable for most works , unless embed a more establish sized industrial plant .
To set container - grown industrial plant : cook planting holes with appropriate deepness and space between . irrigate the plant thoroughly and allow the excess water drain before carefully removing from the container . Carefully loosen the root ball and place the plant in the golf hole , working soil around the roots as you replete . If the plant is extremely root bound , separate roots with finger . A few slits made with a air hole tongue are okay , but should be kept to a lower limit . Continue sate in soil and piddle thoroughly , protecting from direct sun until stable .
To institute scanty - root plants : flora as shortly as possible after leverage . set up suitable planting hole , circulate etymon and run soil among roots as you fill in . Water well and protect from direct sun until stable .
To plant seedlings : A bit of perennial produce ego - sown seedling that can be transpose . You may also start your own seedling bottom for transplanting . set up desirable planting holes , space appropriately for works development . softly lift the seedling and as much surrounding dirt as possible with your garden trowel , and replant it immediately , firm soil with fingertip and water well . Shade from verbatim Dominicus and water regularly until unchanging .
Problems
bar and control : Keep your garden as white as possible , egest hiding position such as leaf debris , over - turn pots , and tarps . Groundcover in funny places and large mulches offer protection from the elements and can be favorite concealing places . In the bounce , patrol for and demolish eggs ( clusters of minor semitransparent arena ) and adults during fall and dawn . set up out beer maw from previous spring through fall .
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