Below are possible answers for the crossword clue Plants with tall flower spikes.
8 letter answer(s) to plants with tall flower spikes
GLADIOLI
any of numerous plants of the genus Gladiolus native chiefly to tropical and South Africa having sword-shaped leaves and one-sided spikes of brightly colored funnel-shaped flowers; widely cultivated
the large central part of the breastbone
Other crossword clues with similar answers to 'Plants with tall flower spikes'