Companion plants for sweet alyssum
We found 1 sourced companion and 0 pairings to use with caution. Each one links to its source and shows how strong the evidence is.
Growing sweet alyssum
Lobularia maritima
- Sun
- Full sun to partial shade
- Water
- Moderate moisture; tolerates some dryness
- Soil
- Well-drained soil
- Spacing
- Allow cultivar spread without crowding lettuce; keep flowers accessible
Good companions for sweet alyssum
Lettuce
Research-supportedFlowering sweet alyssum can support aphid-eating hoverflies.
California lettuce studies found floral resources support adult hoverflies; their larvae feed on aphids. Results are context-specific and not a guarantee in every home garden.
Spacing: Leave lettuce growing space and keep alyssum flowering; commercial study densities are not a universal home-garden prescription.
Pests: This supports natural enemies rather than directly repelling aphids; keep checking aphid levels.
USDA ARS · Flowers in organic pest control
Use caution
No sourced conflicts recorded.
Other crops
Check pairings in your own beds
Smart Garden Planner flags companions and conflicts as you add sweet alyssum and other plants to a garden bed.
Reference version 2026-11-03. Educational information; local conditions vary — check your local extension office.