The Q&A Archives: Planting Mandevilla?

Question: How do I best locate and plant this beautiful plant?

Answer: This plant is not winter hardy in your area so I would suggest growing it as a container plant unless you want to plan on replacing it every spring. It should not be exposed to temperatures below about 45 degrees. It does great outside over the summer and thrives in the heat and humidity. It needs full sun (at least half a day of direct sun), ample moisture and generous fertilization during the growing season. Use a complete fertilizer such as 10-10-10 plus minors in water soluble and/or slow release form per the label instructions. In winter it can be grown as a houseplant or stored cool (45 degrees) and on the dry side (soil just barely damp) where it will rest until spring. Right now, you may want to set it outside during the day and bring it inside at night until nights are reliably above 50 degrees.

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