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Logee’s
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from
the growers
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Cultural Information – Mandevilla
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our Mandevilla department
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Light:
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Full sun, a southern exposure, is a must.
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Temperature:
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Maintain indoor temperatures above 60°.
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Humidity:
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Preferably 50% or higher; however, they will
tolerate low levels without harm.
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Watering:
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Bring the soil to
a state of visual dryness between watering. They need a period of
dryness between waterings to keep their roots healthy, especially in
the winter. When watering, thoroughly saturate the soil until a little
water runs out of the bottom of the pot. Growing in a clay pot will
help maintain a healthy root system.
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Fertilizer:
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They need moderate levels of fertilizer. Give
them more under high light. Generally, fertilize with ˝ tsp of
fertilizer per gallon of water once a week. Use a balanced
fertilizer like a 15-15-15 or a blooming fertilizer like a 7-9-5.
Discontinue feeding during the winter months.
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Pruning:
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Repot once the plant has completely filled the
pot. They can, however, be kept under potted with no harm. We like to
grow them in clay pots as over many years, it keeps the root systems
healthy. Prune back hard in late winter to early spring, after their
winter dormancy. Prune anytime growth is excessive.
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Insects and
Disease:
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High
susceptibility to mealy bug. All Mandevillas have problems with root
diseases if grown under cool, damp conditions in greenhouses or
conservatories, or if kept too wet.
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