Plant Diagnosis

Plant Problems

Start with the symptom you can see. Compare likely causes before changing water, fertilizer, light, or treatment.

Triage First

Observe before you treat

A useful diagnosis starts with location, timing, and the pattern of damage.

1

Locate the damage

Check whether symptoms begin on old leaves, new growth, roots, or one side of the plant.

2

Check recent changes

Note weather, watering, repotting, feeding, pruning, and any new treatment.

3

Compare evidence

Look for insects, residue, soft tissue, dry edges, odor, and soil moisture.

Problem Library

Search by visible symptom

85 matching guides

Search and filter problems

Search checks problem names, descriptions, and summaries. Plant group uses the category saved on each problem; sorting uses the update date or problem name.

Houseplants

String of Pearls - Shriveled Pearls

Shriveled String of Pearls can reflect dry mix or roots that cannot supply the leaves, including roots damaged while the pot stayed…

Diagnosis + recovery

Houseplants

String of Pearls Mushy Stems

Mushy String of Pearls stems are damaged tissue, but their appearance alone does not identify the cause.

Diagnosis + recovery

Lawn Grasses

Tall Fescue Brown Patch

A tan circle in Tall Fescue is not enough to prove brown patch. Inspect upright blades at the changing edge for irregular tan lesions…

Diagnosis + recovery

Houseplants

Wandering Jew - Faded Leaves

Faded Tradescantia zebrina leaves can reflect changing light, root stress, pests or the plant’s own variation.

Diagnosis + recovery

Houseplants

Wandering Jew Leggy Growth

A leggy Tradescantia zebrina may have long new internodes, old bare vines or a thinning crown.

Diagnosis + recovery

Vegetables

Watermelon Blossom End Rot

A dry, dark, sunken patch centered on the end opposite the stem fits blossom-end rot on a developing watermelon.

Diagnosis + recovery