Do Mandevilla Need Full Sun?

Mandevilla vines need full sun for 6 hours a day. These tropical vines prefer soil that is neither too moist nor too dry. They should be planted in a sunny area of your garden where they’ll get direct light from late spring to the first frost. However, it is possible for them to get too much sun. 

If you live where temperatures are extreme, day-long, full sun may lead to sun scorch. Sun scorch is usually identified by blisters on the leaves or brown or yellow discoloration. Partial shade in the hottest part of the day prevents sun damage. In climates that are not extreme, don’t be afraid to offer your mandevilla vines 8 hours of direct sunlight per day.

How Many Hours of Sun Do Mandevilla Need?

Mandevilla vines require at least 6 hours of full sun on a daily basis. However, don’t hesitate to allow them abundant sunlight for up to 8 hours. They thrive best with more light instead of less. Trellises and obelisks help these climbing, tropical vines grow in a natural pattern, toward the sun that they love.

• Mandevilla vines have a sunlight requirement of at least 6 hours per day.
• 8 hours of sun per day is not harmful in most cases.
• Trellises and obelisks help them grow toward the sun and maintain their shape.

Mandevillas won’t typically crowd nearby plants. However, a trellis or similar supportive structure should be used so that the stems don’t twine around themselves. Otherwise, you may end up with an odd-looking vine, splaying out in different directions.

Can Mandevilla Grow in Indirect Sunlight?

Mandevilla vines can grow in indirect sunlight, but need full sun to thrive. When growing them in an area of your garden that does not get the desired 6 hours of daily sun, aim for an area that gets at least 3 hours of direct light, along with several hours of indirect sun.

• Mandevilla vines grow in indirect light and will sometimes flourish there.
• A sunny spot with direct sun is best to ensure your mandevilla reaches its fullest potential.
• Vines growing in indirect light may grow in a strange pattern.
• Mandevilla blooms may be lackluster if your plant receives less than 6 hours of direct sun each day.

Mandevilla vines grown in partially shaded areas may grow in odd directions as they “search” for more sun. Additionally, the plant’s pink flowers may not reach their full potential if it’s grown in shade. So, if you want to grow mandevillas in indirect sunlight, give it a try, but consider moving them to full sun if such issues occur.

Can You Grow Mandevilla Vines in Shade?

Mandevilla vines will grow in shade and likely won’t die because of it. However, you will not get the same results you would if they are given the 6 hours of full sun they desire. They will tolerate partial shade, but full deep shade is typically a bad idea.

• Mandevilla vines will not die if they are grown in partial shade.
• Growing mandevillas in shade results in poor growth and fewer beautiful flowers.
• Growing mandevilla indoors can be tricky due to the lack of full sun.

If you plan to grow your mandevilla vines inside, make sure you can place them directly in front of a sunny window for about 8 hours a day. If you can’t make enough sun available, you may wish to reconsider your plans and plant your mandevillas outside in the ground. These vines are known for their impressive blooms, and lack of sunlight results in far fewer flowers.

What Happens if Mandevilla Vines Don’t Get Enough Sun?

The health of a mandevilla vine can suffer if the proper sunlight requirement is not met. There are several major signs of too little sun. First, the vine’s leaves will not grow as full. Second, mandevilla blooms will not be as large when the plant receives too much shade. Finally, the vine will not grow as fast if it lacks sun. This means that by the end of the growing season, it may not reach its normal height or fullness.

• Mandevilla vines that are sun-deprived will not produce full leaves and blooms.
• Your vines will not grow as fast if appropriate sun is not available.
• In extremely hot temperatures, 3 hours of full sun may produce similar results to that of 6 hours.

The only exception to these rules is extremely warm climates with excessive heat. In extremely hot areas, 3 hours of full sun may be enough to produce a flourishing mandevilla. However, in most regions, it will take 6 hours of sun to produce impressive blooms.

Can Mandevilla Get Too Much Sun?

Almost all vines can get too much sun, and the mandevilla is no exception. It’s possible for a mandevilla vine to get “burned” by too much sun and excessive heat. This results in brown leaves with a “crinkly” appearance. Sun-scorched blooms may also develop brown or yellow spots in the center of each petal.

• Mandevilla vines can get “burned” by the sun.
• Leaves may develop a “crinkly” appearance or small blisters.
• Blooms may feature yellow or brown spots in the middle of the petal.
• Offering vines shade in the hottest part of the day should take care of the problem.

Sun scorch may also attack the leaves of oversunned mandevillas. This condition appears as small blisters on the leaves. Sun scorch typically happens in a very hot climate or in areas where the vines are in direct sunlight from morning till night. If your vines are becoming burned or sun-scorched offer them some afternoon shade to remedy the problem. This can be done by covering them with this row cover in the later parts of the day.

How Much Sun Should a Mandevilla Vine Get?

Mandevilla should be given full sun for 6 hours a day. These tropical plants thrive in soil that is somewhat moist but not dry. Plant them in a sunny area of your garden where direct sunlight is available from late spring until overnight frosts begin.

• 6 hours of direct sun each day is best for mandevilla vines.
• In climates where temperatures aren’t extremely hot, 8 hours of full sun daily is appropriate.
• Day-long full sun may be too much for mandevillas in extremely hot climates.
• A bit of afternoon shade can prevent sun-scorched mandevilla leaves.
• Mandevilla vines will thrive and flourish in sunny areas of your garden.

Whether you are growing mandevilla vines as potted plants or as part of an outdoor garden, keep in mind that this is a sun-loving plant. If you give your mandevilla vine adequate sunlight, it will reward you with exquisite blooms.