Can You Overwinter a Tomato Plant Indoors?

Bringing a cherry tomato indoors for winter harvest rarely works.

• Tomatoes need 6+ hours of direct sun—only a southwest sunroom might suffice.
• Even with light, plants decline after ~5 months: yields drop, fruit shrinks.
• Indoor conditions favor pests like whiteflies and spider mites.

Regarding toxicity: tomato leaves have a strong scent that deters most pets. Cats and dogs rarely eat them. Insects and slugs consume them with no ill effects, suggesting low toxicity.

Better plan: compost the plant, save seeds, and start fresh next spring.