Morning glory (also written as morning-glory) is the common name for over 1,000 species of flowering plants in the family Convolvulaceae, whose current taxonomy and systematics are in flux.

Most morning glory flowers unravel into full bloom in the early morning.

The flowers usually start to fade a few hours before the “petals” start showing visible curling.

They prefer full solar exposure throughout the day, and mesic soils. Some morning glories, such as Ipomoea muricata, are night-blooming flowers.

In some places, such as Australian bushland, some species of morning glories develop thick roots and tend to grow in dense thickets.

They can quickly spread by way of long, creeping stems.

By crowding out, blanketing and smothering other plants, morning glory has turned into a serious invasive weed problem. (source)

So can guinea pigs eat morning glory?

Unfortunately, they can’t. Morning glory is poisonous for guinea pigs to eat and should be avoided if at all possible as a food for them.