A horticulture tray including a plurality of growing cells each configured to accommodate a stabilized growth plug therein. A support peak of each cell is configured to protrude into a center of the stabilized growth plug and force soil of the stabilized growth plug outward and away from the support peak. A sidewall of each cell is angled to force soil of the stabilized growth plug inward and away from the sidewall. The support peak and the sidewall force soil of the stabilized growth plug together between the support peak and the sidewall to compact the soil to form a soil bridge that extends between the support peak and the sidewall, and prevents soil from passing through the growing cell.