|This year for the first time, my husband and I planted Heavenly Blue Morning Glories. We were excited at the way they grew so rapidly. It is now two months since we planted, and although the plants have successfully climbed our 5 foot trellis, the leaves have begun to brown and dry out near the base of the plants. The browning is now approximately 2 feet up the plants and climbing. Why are they doing this? The exposure is East and we are in Zone 5.
|If the top of the plant looks healthy and is growing vigorously, then I would guess that this is simply the normal aging process of the leaves. The leaves nearest the base are the oldest, and as the plant draws energy to the growing points and flower buds, it begins to draw nutrients out of these older leaves. Just be sure you are providing adequate water and nutrients to the plant, and consider planting some shorter plants around the base to hide the browning foliage.