Do Morning Glory Flowers Come Back Every Year. In a good year Morning Glory make a super annual climbing plant with trumpets of flowers. 04022020 Even though morning glories are grown as annuals outside of tropical climates one would hardly know it based on their ability to self-seed.
Some varieties can have bright funnel-shaped flowers that are up to 8 inches across but most varieties of morning glory have flowers that are 4 inches across. In winter or early spring cut back morning glory vines grown as perennials to about 6 inches 15 cm above the ground. In fact it takes effort to prevent reseeding.
Although it sounds counter-intuitive pulling the roots creates new more numerous fibrous roots.
This gets rid of old tired growth and encourages them to come back strong and vigorous. I have a morning glory trellis that had healthy plants with copious flowers every year then last year - no flowers until just a half dozen or so just before the first frost. 08052019 Dont worry Walt Whitman says A morning-glory at my window satisfies me more than the metaphysics of books and philosopher Alan Watts opines The morning glory which blooms for an hour differs not at heart from a giant pine that lives for a thousand years That lightens things up a bit. Simply so can morning glories come back every year.