The main signs of overwatering drought plants include yellow lower leaves, soft mushy stems, and wilting even when soil stays wet. Your plants look sick despite all the water you give them. These warning signs tell you to stop watering right away before root damage gets worse.
I learned about overwatering the hard way with my first sedum garden. I watered those plants every day because I wanted them to grow fast. Within two weeks the bottom leaves turned yellow and fell off. The stems got soft and mushy at the base. I lost half my plants before I figured out what I was doing wrong.
I saved the rest of my sedums by stopping all water for three weeks straight. The survivors firmed up and started growing again once soil dried out. Now I check soil moisture before watering any drought plant. That simple habit has kept me from making the same mistake twice.
Too much water perennials cannot survive because their roots need oxygen to live. Water fills the air spaces in soil and pushes out the oxygen your roots need. Roots start dying within days of losing access to air. Fungal pathogens then move in and cause root rot symptoms that spread fast through wet soil.
Root rot symptoms show up in specific ways you can learn to spot early on. Leaves yellow starting at the bottom of your plant. Stems feel soft when you squeeze them. Your plant wilts even though soil stays damp. You might see white or gray fungus on the soil surface. Roots smell bad when you dig them up.
Drought stress looks similar but has key differences you should know about. Underwatered plants have dry crispy leaves. Overwatered plants have soft yellow leaves instead. Stems stay firm when dry but turn mushy when too wet. Check the soil to know which problem you have. Dry soil means your plant needs water. Wet soil with sick plants means you gave too much.
You can save overwatered plants if you catch the problem early enough. Stop all watering right away and let soil dry out for at least a week. Move potted plants to a sunny spot where soil dries faster. Dig up badly affected plants and cut off rotted roots before putting them in fresh dry soil. Not every plant survives but many will recover with quick action.
Prevent overwatering by checking soil before you water your drought plants. Stick your finger two inches into soil near the base of each plant. Water only when that soil feels dry to your touch. Most drought perennials need water only once a week or less during summer. Less water keeps your drought plants healthy and strong.
Read the full article: Best Drought Tolerant Perennials for Gardens
