Plant Compatibility Advisor

Companion Planting Analysis

Tomato (Solanum lycopersicum)

Garden Zone: 5b

Repels tomato hornworms and improves flavor. The strong aroma confuses pests that typically target tomatoes.

Pest Control

Deters nematodes and other soil pests. Roots secrete compounds that suppress harmful nematode populations.

Soil Health

Acts as a trap crop for aphids and whiteflies. Attracts pollinators that improve tomato fruit set.

Pest Management

Potatoes
Can transmit blight diseases to tomatoes. Both plants are in the nightshade family and share vulnerable pathogens.
Fennel
Secretes compounds that inhibit growth of nearby plants, including tomatoes. Can cause stunted growth.

Start seeds indoors 6-8 weeks before last frost (typically mid-March to early April for Zone 5b).
Transplant outdoors after danger of frost has passed, typically mid-May in your zone.
Consider using wall-o-water or other frost protection during early season to extend growing period.

The companion planting combination attracts ladybugs and lacewings that control aphid populations naturally.

Interplanting with low-growing herbs maximizes garden space while creating beneficial microclimate.

Generated by Plant Compatibility Advisor AI · Zone-specific recommendations for optimal growth

Plant Compatibility Checker