Mandevilla Care

Growing Mandevilla

Mandevilla is a flowering vine also known as rock trumpet. This plant boasts showy 5-petaled flowers in shades of red, pink, and yellow that give an outdoor space a tropical vibe. The flowers bloom during the summer and fall and are offset by glossy green foliage. The reaching vines make this plant a striking addition to a hanging basket or a focal point for a trellis that the vines can grow and climb. 

Mandevilla is a fast-growing plant that is also easy to maintain. Depending on the variety, the vines can reach up to 10 feet long, and the plant can be up to 4 feet wide. This beauty grows as a perennial in tropical and subtropical climates and is commonly grown as an annual in other areas.

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Planting Mandevilla

Mandevilla needs rich, moist, well-drained soil with a neutral to acidic pH. Plant in a sunny area that receives at least 6 hours of sunlight daily, but be mindful of the intense afternoon sun, which may be more than Mandevilla can handle. This tropical plant will thrive with warm temperatures and increased humidity. 

Watering Mandevilla

This vining plant prefers consistently damp soil, but it does not like to sit in standing water. Give Mandevilla a drink when the top inch of soil feels damp but not wet. Spray the foliage with water to increase the dampness and humidity. Mandevilla is somewhat drought-tolerant and can handle a bit of dryness, but continued dryness can be damaging.

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Fertilizing Mandevilla

Routine fertilization will help this fast-growing vine reach its full potential and continue to push out lovely blooms. A balanced fertilizer with an NPK ratio of 10-10-10 or 20-20-20 supports healthy growth. Use a granular slow-release fertilizer once in the spring to support growth throughout the growing season. Another option is to apply a water-soluble fertilizer every couple of weeks.

Pruning Mandevilla

The vines are a big draw for Mandevilla but trim the vines back to maintain a more compact and bushy appearance. This beauty blooms on new growth, so in warm climates, shape the plant as necessary in the fall or early spring before new growth emerges. Cut back no more than one-third of the plant at a time. Remove dead or damaged growth at any time, and all growth can be trimmed back in the fall in areas with cold winter weather. Deadheading is unnecessary, but removing spent flowers will keep the plant looking clean and tidy.

Caring For Mandevilla in Pots

Mandevilla is a good choice for containers for areas outside its hardiness rating, where you can grow this tropical stunner outdoors on a porch or patio. Water daily or when the top layer of the soil feels damp. The container must have drainage so excess water can run through the pot. Amend the soil with organic compost and fertilize using a water-soluble fertilizer every couple of weeks.

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Winter Care for Mandevilla

Mandevilla can be left without any additional winter care in areas with mild winters. This plant may continue to grow in warm winter weather, but cover Mandevilla in the event of a cold snap. Trim the growth back to a few inches above the ground in the fall when grown in areas with cold winters. Depending on the weather, potted Mandevilla plants should be moved to a protected area during the winter.

Common Care Questions About Mandevilla

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