Greenboog plant-inspection guide
A seller-neutral checklist for evaluating a houseplant’s visible condition and reducing the chance of moving a pest problem into your home collection.
Inspect the whole plant, not only its best leaf
Begin with the whole habit. Look for new growth, damaged tissue, wilting, unusual spots and signs of insects on both leaf surfaces and around stems. A plant can have one imperfect leaf and still be viable; the important question is whether there is a concerning pattern across the plant or nearby stock.
Colorado State University Extension advises careful inspection of plants before purchase as part of managing houseplant pests. Treat this as an opportunity to ask factual questions about the plant in front of you, not as a way to assume any plant is pest-free from a brief visual check.
| Area | What to look for | What it cannot prove |
|---|---|---|
| Leaves and stems | Patterns of discoloration, distortion, webbing, scale-like bumps or visible insects. | That an apparently clean plant has no hidden issue. |
| Pot and medium | Drainage, smell, standing water, pests near the surface and a container that suits the plant’s size. | The future watering needs in your own home. |
| Roots | Only with permission and care: roots that warrant a question about condition or crowding. | A complete diagnosis without context. |
| Label and record | The name as presented, date and source information. | Accepted taxonomy, provenance or a cultivar’s future behaviour. |
Ask before inspecting roots
Roots can offer useful context, but do not pull a plant from its pot or disturb a plant that is not yours without permission. Illinois Extension recommends looking at condition and, when appropriate, root health. Ask for assistance with a large or tightly potted plant; a hurried inspection should not damage the plant or its root system.
A root observation is still only one piece of the record. Combine it with the potting medium, plant habit, leaf pattern and the conditions you can provide at home. Avoid treating any one colour or root shape as a complete diagnosis.
Do not turn this checklist into a vendor ranking or a health guarantee. It does not tell you which shop is “best,” what a plant should cost or how it will perform after a change of conditions. Current terms, stock, delivery and return details belong with the relevant seller and transaction.
Separate new plants before integration
After bringing a plant home, keep it apart from the existing collection while you observe it. CSU and Mississippi State Extension both include inspection and separation in houseplant-pest prevention. Use a location where you can inspect leaves, stems and medium regularly without sharing tools or splashing water between plants.
Do not overcorrect with immediate repotting, pesticide use or aggressive pruning solely because the plant is new. First record its condition, give it stable placement and act on a specific observation or an appropriate label direction.
Prepare the room before choosing the plant
A visually healthy plant may still struggle if the home location does not fit. Before choosing, note the available light, temperature swings, safe footprint and care routine. The houseplant care framework helps turn those conditions into a simple observation plan after the plant is established.
Pre-purchase checklist
- Look at the whole plant and nearby plants for a pattern of pests or decline.
- Inspect leaf undersides, stems, pot surface and drainage.
- Ask permission before examining roots; do not disturb a plant unnecessarily.
- Record the label and source, while leaving unknown identity fields unknown.
- Plan a separate observation area before introducing a new plant to the collection.
FAQ
Can a healthy-looking plant still have pests?
Yes. Visual inspection reduces uncertainty but does not guarantee the absence of a hidden issue. Separate and monitor a new plant.
Should I repot every new houseplant immediately?
Not automatically. First assess the plant and its medium; repotting is a separate decision that should have a reason.
Which shop has the best indoor plants?
This page does not rank sellers. Use the actual plant inspection, current seller information and the conditions you can provide as separate decisions.
Sources used: Colorado State University, Illinois and Mississippi State Extension guidance on inspecting new plant material and managing houseplant pests. Accessed 2026-08-27.
