gladiolus (glads)
Plant
Tender perennial
1-5' tall
Upright habit
Leaf
Long, sword-shaped
From underground corm (modified stem)
Flower
2-4" wide
Clustered in many-flowered, one-sided spike
Bloom progresses from bottom to top of spike
Color varies by cultivar
Corm
Propagated by corms (modified underground stems)