Chrysanthemum ‘Yellow Knight’ — Yellow Spider Mum

Description

Chrysanthemum ‘Yellow Knight’ is a striking spider-type mum with long, narrow yellow petals that radiate from the center of each bloom. Its bright color and distinctive flower form make it useful for fall containers, perennial borders, and cut-flower arrangements.

Gardeners building a mixed mum display can pair it with the sculptural flowers of Chrysanthemum ‘Vesuvio’ or the contrasting form of Chrysanthemum ‘Fleur De Lis’. For additional late-season perennial structure, bearded iris can help extend interest beyond the mum season.

Light and Planting

Plant ‘Yellow Knight’ where it receives full sun for the strongest stems and best flowering. Use fertile, well-drained soil and avoid low areas that remain waterlogged after rain. Good air movement around the foliage can also help reduce common foliar disease problems.

Water and Feeding

Keep the root zone evenly moist while the plant is actively growing, especially during hot weather or when grown in containers. Water deeply enough to wet the root zone, then allow excess water to drain. A moderate feeding program during active spring and early-summer growth can support healthy stems and flower production without pushing overly soft growth.

Pruning and Flowering

Young shoots can be lightly pinched in late spring or early summer to encourage branching and a fuller plant. Stop pinching well before flower buds begin to develop. Remove spent blooms as needed to keep plants tidy and direct energy into remaining flowers.

Winter and Long-Term Care

Where garden mums are reliably perennial, leave healthy roots in place and add a light mulch after the ground cools. Avoid heavy wet mulch directly against the crown. In colder or poorly drained sites, winter survival can vary, so container plants may need additional protection.

Propagation

For plants that match the parent, propagate ‘Yellow Knight’ from divisions or vegetative cuttings rather than seed. Divide established clumps in spring, or root healthy non-flowering shoots in a clean, well-drained propagation mix.

With full sun, steady moisture, and good drainage, ‘Yellow Knight’ provides a bold burst of golden color at a time when many summer flowers are beginning to fade.