Sometimes a lantana ’s dormancy can be mistaken for decline . In U.S. Department of Agriculture zones 8 through 11 , lantana ( lantana spp . ) , becomes dormant in wintertime . Because coolheaded temperature spark loss of both bloom of youth and foliation , lantana can look to be nothing more than a pile of twigs by wintertime . The plant life resume growing when temperature come up in the leap . The minimum temperature for lantana is 10 degrees ; however , look on the mixed bag , a hard freeze , which is 25 arcdegree and below , can damage or kill the plants . In USDA zone 7 and under , many varieties of lantana can be killed in backbreaking freeze and are grown as annuals .
Orientation to Sun
A works that revels in red-hot , gay site , lantanas will seldom thrive in a northern photo . If a lantana plant is not flower and development is less vigorous , evaluate how much fair weather it is receiving . Too much shade can also invite fungous disease . In areas with red-hot summers , some good afternoon tincture is satisfactory . Established lantanas are fantastically heating plant - broad and do well in a south- or west - facing bed .
Soil Moisture
Lantanas ask well - drained soil and will fade in cold , soggy grease . If water pond on the soil surface , or the land is often muddy , it is not run out well . To organize the soil , incorporate compost into the planting area , mixing well with aboriginal soil . If the plant has been sited properly and its cultural requirements have been met , but it is still in decline , pest infestation or disease may be the culprit .
Pest Attack
Lace microbe , mealybugs , aphids , whitefly and wanderer jot can be destructive to lantana , particularly if there is a operose infestation . The leaves of the flora can appear chickenhearted or flecked and jet mold may be present . delay the undersides of the leaves for insects . Control can be achieved with a horticultural oil spray , mixed with water and sprayed according to recording label instructions . To avoid burn the plant , it should not be used when temperature are above 90 degree .
Gray Mold
Botrytis blight , also be intimate as grey modeling , may occur in areas with high humidity . When the lantana ’s leaves and flowers wilt and rot , this disease could be the suit . Overhead watering can exacerbate the problem . Using lopper that have been disinfected in a Lysol result of one part Lysol to four parts of water , shorten out the affected orbit , soaking pruners for one arcminute between cut . Then chuck out of all infect junk , include the leaf bedding around the flora . If the plant continues to decline , it is beneficial to toss away of the integral industrial plant . Gray mold could be transmitted to the other works in the garden .
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