Companion plants for Giant Allium

Giant Allium blooms from May through June. It wants full sun and low water. The 8 companion pairings below each state why the pairing works.

Giant Allium: full care and facts →

Taking over as Giant Allium finishes

  • Globe Thistle

    Globe Thistle

    Shares full sun and low water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

    Companions for Globe Thistle →

  • Blazing Star

    Blazing Star

    Shares full sun and low water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

    Companions for Blazing Star →

  • Black-Eyed Susan

    Black-Eyed Susan

    Shares full sun and low water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

    Companions for Black-Eyed Susan →

  • Lavender

    Lavender

    Shares full sun and low water; overlaps, then carries the display into late summer; both are strong pollinator plants; evergreen, so the bed keeps its shape through winter.

    Companions for Lavender →

  • Sunflower

    Sunflower

    Shares full sun and low to moderate water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

    Companions for Sunflower →

  • Switchgrass

    Switchgrass

    Shares full sun and low water; blooms in late summer, extending the bed's season; both are strong pollinator plants, and they feed in different months; its seed heads stand through winter, for structure and the birds.

    Companions for Switchgrass →

  • Passionflower

    Passionflower

    Shares full sun and low to moderate water; blooms in midsummer as this one finishes; both are strong pollinator plants, and they feed in different months; climbs to 13 ft behind it, height without the footprint.

    Companions for Passionflower →

Blooming alongside

Try Giant Allium with its top companions in a garden →