Planning reference

Tomato Catfacing vs Cracking

Separate malformed blossom-end scars and cavities from radial or concentric tomato cracks before changing transplant timing, watering, pruning, fertilizer, harvest timing, or food-use decisions.

What each tomato fruit signal means

Tomato catfacing
Tomato catfacing is a physiological fruit disorder where tomatoes become flattened, malformed, puckered, scarred, or cavity-filled, usually around the blossom end after flowers or buds are disturbed.
Tomato cracking
Tomato cracking is a fruit-skin splitting disorder where radial cracks run outward from the stem or concentric cracks ring the shoulder, often after dry-to-wet moisture swings or rapid fruit growth.
Misshapen blossom-end scars and cavities
Catfacing points toward a problem during flowering or early fruit formation: corky blossom-end scar tissue, lobed fruit, deep crevices, holes, cavities, and early-cluster damage on large-fruited tomatoes.
Radial or concentric cracks near the stem
Cracking points toward fruit expanding faster than the skin can stretch: cracks at the stem end, shoulder splitting, persistent rainfall, irrigation after dry weather, heavy dew, ripeness, variety susceptibility, or exposed fruit.
Cool bloom weather vs moisture swings
Catfacing management starts before or during bloom with warm transplant timing and variety choice, while cracking management focuses on uniform moisture, mulch, canopy cover, harvest timing, and crack-resistant varieties.

Tomato fruit disorder workflow

Diagnose shape before treating water
Do not treat every misshapen or split tomato as the same disorder; check whether the damage is a flat, scarred, cavity-forming blossom-end malformation tied to cool bloom or transplant weather, or instead a radial or concentric crack near the stem tied to rapid fruit growth, rain, irrigation swings, variety, or ripeness before pruning, watering, fertilizing, canning, or removing fruit.
Protect early flowers from cold stress
Wait until nights and soil are warm enough before setting tomato transplants outside, then use hardening-off and frost-date checks so early flower clusters are not pushed through cold, cloudy weather.
Keep fruit expansion steady
Use mulch, deep watering, and rainfall checks to reduce dry-to-wet swings before fruit near maturity, especially on large tomatoes, older varieties, or exposed fruit.
Choose actions by food safety and severity
Remove badly catfaced fruit that will not ripen uniformly. Use mildly catfaced or cracked fruit only if it is otherwise sound, and do not can fruit with cracks, rot, mold, insect damage, or deep cavities.
Separate variety susceptibility from disease
Neither catfacing nor growth cracking is a sprayable disease; compare cultivar notes, fruit size, first-cluster timing, canopy, and local weather before blaming pathogens.

Use these paths

Source basis