Summary
The heat - loving mandevilla plant is an iconic part of summer gardens . While gardeners in zones 9 and high can simply leave their genus Dipladenia outside through the winter , gardeners in colder zone need to protect their mandevilla plants in winter monthsif they want them to return for the next summertime . Since Dipladenia plants will die if exposed to freezing temperatures , they areoften treat as annual in cooler zones , but if you have the space and time , you could give your mandevilla the wintertime tending it needs to thrive year - round .
Decide How You Want to Overwinter
If you live in USDA zone 8 or lower , where the temperature throw below freeze in the winter , you ’ll demand tobring your mandevilla inside to protect it from the cold . There are two different options for overwintering Dipladenia indoors .
Option 1 : Treat as a Houseplant
pick 2 : Let It Go Dormant
you could simply contribute thepotted mandevilla plantinto aheated greenhouseor at heart to join the rank and file of your indoor garden . Keep in mind , that yourmandevilla wo n’t flower indoors , but you could enjoy its verdure all wintertime long .
If you do n’t have the blank , time , or condition to handle your mandevilla as a houseplant , you canuse a saturnine blank space that maintains a temperature above freezing . A garage , basement , or even a wardrobe will sour well for this pick .
Dipladenia is an older term for some of the species that are now in the Mandevilla genus . you’re able to care for these coinage the same way you care for other mandevillas .
1When to Start Your Mandevilla’s Winter Care
Protect your mandevilla plants when temperatures dip
Mandevilla thrives in in high spirits temperature and quickly begins to struggle when temperature shed in the autumn . Clemson Cooperative Extension Home & Garden Information Centernotes thatthe cold temperatures a Dipladenia flora can handle before fail back to its roots are 45 to 50 degree Fahrenheit . Keep an eye on your weather prognosis and be certain to bring your mandevilla inside before temperatures drop below 60 degrees Fahrenheit .
2Prune Your Mandevilla Plant for Winter
Mandevilla can be cut back significantly for winter
Whether you ’re plan to treat your mandevilla as a winter houseplant or allow it to go dormant , be sure togive it a good pruning before bring it inside . Pruning Dipladenia before bringing them indoors keep them to a more doable size of it through wintertime and further raw growth in the outflow .
Houseplant
Dormant
Cut your genus Dipladenia back by about half . It will raise slowly during the winter indoors .
Prune more aggressively , cut the mandevilla back to about 12 column inch of growth . This will earmark for easy recuperation in the spring , permit the plant to direct its vigour toward novel outgrowth .
3Find the Right Container for Your Mandevilla
Winter isn’t the time to repot mandevilla already in pots
If you ’re digging up a plant from the ground , you ’ll need to place it in a pot to bring it inside . Terracotta planters offer excellent drainage which can assist prevent accidental overwatering . Whenchoosing a planter , pick one that ’s only an in or 2 larger than your mandevilla ’s root ball .
Choose the right soil mix when potting your mandevilla
Awell - run out mixwill decrease the chance of overwateringand help keep your Dipladenia ’s etymon healthy .
If your mandevilla is already growing in a planter , you should not repot the plant for the winter . Repotting will only cause your plant unnecessary focus during this fourth dimension .
4Check Mandevilla for Pests
Deal with pests before bringing your mandevilla in for winter
Alwayscheck your outdoor flora for pests before bring them inside . Mandevilla is particularly susceptible tospider mitesand mealy bug .
Signs and symptom
discourse
Aphids
Mealybugs
Whitefly
Scale
Spider Mites
suss out for pests while pruning back your mandevilla . Any leaf or branches that are severely infest can be trimmed off . To avoid spreading pests to your other houseplants , verify your genus Mandevilla plants are pest - detached before bringing them within .
If you discover pest on your mandevilla after work it inside , seek to keep it disjoined from other plant to stop the plague from spreading .
5Mandevilla Need Less Light When Dormant
Lighting depends on what winter care method you’re using
When they ’re growing alfresco , mandevillasthrive in full sunbut for the wintering at heart , their needs are different .
Pick asunny indoor locationwith bright but collateral light for your plant life . Three to four hour of solid sun a day will suffice .
To encourage your plant to go dormant , visible radiation is n’t neededas you ’re only hold your Dipladenia ’s life during this time . Most leaves will dropdue to a lack of sparkle , but do n’t be interest .
Your mandevilla may go dormant , even if you had intended to keep it as a houseplant . That ’s okay , just give it less water and light and follow the instructions for a torpid mandevilla .
6Mandevilla Need to Stay Above Freezing
Mandevillas need cool temperatures when dormant
While mandevillas are passion - loving plants during the summer , they do well with cool , but not cold , winter temperatures .
When wintering as a houseplant , your mandevilla should do well with winter temperature ranging from the low LX to the abject 70s Fahrenheit .
For dormant plant life , the temperature should detain between 35 and 50 degree Fahrenheit .
7Don’t Overwater Mandevilla
“Wet feet” can quickly lead to root rot during winter
Since winter is not a time for maturation for genus Mandevilla , it’simportant not to overwater your mandevilla plant . Overwatering can cause yellowing leaves and root rot . have a bun in the oven towater the flora about weekly .
To sustain a dormant industrial plant , you involve toprevent the roots from wholly dry out . This does n’t demand much ; you only need towater every two to three weeks .
8Prepare your Mandevilla Plants for Spring
Harden your plants off to help them return outside
Regardless of whether you opt to have your Dipladenia spend the wintertime sleeping or as a houseplant , make indisputable you give it clip to adjust to being an outside plant again . Harden your plant offfor a few calendar week by putting it outdoors for a few hour a day and then convey it back indoors at night . give is also the prison term to repot your genus Mandevilla if necessary .
Protecting Mandevillas in the Winter Leads to Blooms All Summer
You do n’t have to live in a tropical clime togrow mandevillas as perennials . By keeping your mandevilla in your house or garage , you’re able to shield it from the harsh atmospheric condition and provide it with the winter care it needs . If you protect these beautiful plants in the wintertime , they will pay back you with colorful blossom all summer .
