How to Tell If a Plant Is Healthy Before Buying
A few minutes of inspection at the store saves weeks of trouble at home. Learn exactly what to check on leaves, stems, roots, and soil before you buy a plant.
The healthiest plant you'll ever own is the one you pick out carefully at the store. A stressed or pest-ridden plant may look fine on the shelf but spiral once you get it home, while a vigorous specimen forgives the inevitable beginner mistakes. Five minutes of inspection is the best insurance you can buy.
This reference covers what to examine — leaves, new growth, stems, roots, soil, and signs of pests — so you can confidently spot a thriving plant and walk past the duds. Knowing what healthy looks like also helps you monitor your plants at home.
Check the leaves and new growth
Healthy leaves are firm, evenly colored, and free of yellowing, brown crispy edges, or dark mushy spots. A little dust is fine, but widespread discoloration, wilting, or holes signals stress, disease, or pests. On variegated plants, look for crisp, well-defined color rather than faded patches.
The clearest sign of a vigorous plant is new growth — small emerging leaves or a fresh tip means the plant is actively thriving. A plant with no new growth and lots of damaged older leaves is a riskier buy.
Inspect stems, roots, and soil
Stems should be firm and upright, not soft, mushy, leggy, or stretched. Gently check the base where stem meets soil for any softness or dark rot. If you can, slip the plant from its pot a little: white or tan firm roots are healthy, while brown mushy roots or roots circling tightly and bursting from the drainage holes are warning signs.
Look at the soil too. It should be moist but not waterlogged or sour-smelling, and free of green algae or a thick crust. Soil that's pulled away from the pot and bone dry suggests the plant has been neglected on the shelf.
Hunt for pests
Always check the undersides of leaves and the joints where leaves meet stems — the favorite hiding spots for pests. Look for fine webbing (spider mites), white cottony tufts (mealybugs), small brown bumps (scale), sticky residue, or tiny flying insects around the soil (fungus gnats).
If you spot any pest on one plant, assume nearby plants on the same display may be affected too. It's safer to choose from a different, clean batch than to gamble on bringing pests home.
Read the overall vigor
Step back and judge the whole plant. A healthy specimen looks full and balanced, sits firmly in its pot, and has more good leaves than damaged ones. Avoid plants that are wilting, top-heavy, badly rootbound, or have been heavily pruned to hide damage.
When choosing between similar plants, pick the bushiest, most upright one with the most new growth. Buying the healthiest available plant sets you up for the easiest care.
- Always flip leaves over to check undersides for pests before buying.
- Choose a plant showing new growth — it's the best sign of vigor.
- Skip any plant in soggy, sour-smelling, or algae-covered soil.
FAQ
What is the clearest sign a plant is healthy?
Active new growth — small emerging leaves or a fresh tip — shows the plant is thriving. Combine that with firm stems, evenly colored leaves, and healthy white roots for a confident buy.
Should I check the roots before buying?
If you can gently slip the plant from its pot, yes. Firm white or tan roots are healthy, while brown mushy roots or roots tightly circling and bursting from the drainage holes are warning signs.
How do I spot pests at the store?
Check leaf undersides and the joints where leaves meet stems for webbing, white cottony tufts, brown bumps, sticky residue, or tiny flies around the soil. If one plant has pests, avoid the whole batch.