My Stachys Byzantina Leaves Are Yellowing

Irrigation

• While it is imperative that it receive adequate water, Stachys byzantina health is especially susceptible to over-watering. When the plant receives too much water, liquid collects in the surrounding soil and is slow to drain off. This is exacerbated if the plant is in heavy soil that typically does not allow water to drain away. The result is a plant that begins to rot. As it begins to decay, Stachys byzantina leaves first turn yellow, then droop somewhat, and finally fall away as the plant dies.

Aphids

• Aphids present a problem to many plants. Their damage can vary from deformed leaves that curl up and eventually fall away to yellowing leaves that decline in health until they are shed. Aphids have been known to defoliate plants, and Stachys byzantina is no exception. Aphids also secrete a syrupy-like substance that will eventually turn to mold and harm the Stachys byzantina. As soon as aphids are spotted, apply an insecticidal spray to eliminate the problem before it gets out of control.

Soil

• There are some plants that are tolerant of all types of soil conditions, but Stachys byzantina just isn't one of them. The ideal soil type for this plant is somewhere between a fine- and coarse-textured soil, as the plant does not tolerate soils of either extreme. Fine-textured soils tend to drain water off too quickly, resulting in the plant not getting enough water and leaves yellowing and perhaps dying. Coarse soil retains too much water, and the plant dies as a result of over-saturation. The leaves are the first to show signs of this by turning yellow or brownish.

Weeds

• An annoying problem that most gardeners deal with on a regular basis is weeds. Unfortunately, owners of Stachys byzantina will potentially be dealing with it even more often. This plant has no serious pests, but weeds are particularly attracted to it. When weeds move in, they take nutrients from the soil that would otherwise go directly to the plant, and Stachys byzantina health begins to decline. The first sign is a discoloration of the leaves. They turn yellow, eventually brown, and then die and fall away. The best way to avoid a problem with weeds is by keeping an eye out on a regular basis. Whenever weeds are seen, pull them, and if they become a big enough problem, apply a weed killer.