Question 1

What is the optimal temperature for Bittersweet?

Accepted Answer

The best temperature for Bittersweet depends on the time of year. There are two primary seasons to discuss for temperature: the growing season, and the dormancy season. During the growing season, once Bittersweet has begun to sprout, the ideal temperature range should be anywhere from 65~80℉(18~27℃). Any colder than 15℉(-10℃), and the plant will suffer; its leaves may brown and wilt, but if this is a short cold snap, then Bittersweet may be able to survive with some help.

During the warmer parts of the year, Bittersweet will need to be similarly protected from temperatures that are too high. 95-105℉ (35-40℃) is the top of this plant’s temperature range, and anything above that will compromise the integrity of the foliage and blooms of Bittersweet. Hotter temperatures can cause wilting, drooping, and even sunburn on the leaves, which can be difficult for Bittersweet to recover from. There are quite a few ways to combat this issue that are quick and easy!

Question 2

Temperature requirements for first year or seedling Bittersweet

Accepted Answer

If this is the first year of your Bittersweet outside as a new plant, then it may need a little extra tending during the coldest months of the year. Not only can frost more severely damage a first-year Bittersweet, but it can also prevent it from growing back as a healthy plant come spring. This plant needs to be kept at 40℉(5℃) or above when they’re not yet established, which can be done either by bringing your Bittersweet inside for a month or two, or putting up mulch or fabric barriers that protect from frost damage.

It’s also a good idea to plant Bittersweet in a shadier spot during the first year or two, as smaller and weaker plants have a more difficult time maintaining their own temperatures in the heat. First-year Bittersweet should receive no more than five hours of direct sunlight per day, particularly if the ambient daytime temperature gets above 80℉(27℃). Shadecloth and frequent watering or misting are the keys to summer heat control.

Question 3

Dormant season temperature recommendations for Bittersweet

Accepted Answer

During the cold winter months, Bittersweet needs a certain measure of cold in order to stay in dormancy until it’s time to sprout. Sprouting too early, that is before the danger of the last frost has passed, can be fatal to Bittersweet, especially if it’s already had a head start when the frost hits. Winter temperatures should ideally stay below 32℉(0℃), but if they get up to 40℉(5℃), everything will be just fine.

An unexpected warm spell during the cold months, which can happen in more temperate climates like woodland rainforests, can trigger a premature sprout from Bittersweet. In this case, if there’s still imminent danger of frost, you may want to try covering it with clear plastic on stakes so that the cold has less of a chance of damaging the new sprout. This setup can be removed when the danger of frost has passed. Occasionally, Bittersweet will be able to resprout at the correct time without any help, but this method increases the chances of a successful second sprouting.

Cookie Name	Source	Purpose	Lifespan
_ga	Google Analytics	These cookies are set because of our use of Google Analytics. They are used to collect information about your use of our application/website. The cookies collect specific information, such as your IP address, data related to your device and other information about your use of the application/website. Please note that the data processing is essentially carried out by Google LLC and Google may use your data collected by the cookies for own purposes, e.g. profiling and will combine it with other data such as your Google Account. For more information about how Google processes your data and Google’s approach to privacy as well as implemented safeguards for your data, please see here.	1 Year
_pta	PictureThis Analytics	We use these cookies to collect information about how you use our site, monitor site performance, and improve our site performance, our services, and your experience.	1 Year

Cookie Name	Source	Purpose	Lifespan
_fbp	Facebook Pixel	A conversion pixel tracking that we use for retargeting campaigns. Learn more here.	1 Year
_adj	Adjust	This cookie provides mobile analytics and attribution services that enable us to measure and analyze the effectiveness of marketing campaigns, certain events and actions within the Application. Learn more here.	1 Year

How can I protect Bittersweet from extreme temperatures?

More Questions About Bittersweet

What is the optimal temperature for Bittersweet?

Temperature requirements for first year or seedling Bittersweet

Dormant season temperature recommendations for Bittersweet