When Do Gladiolus Flower In Australia. Planting time determines bloom time so instead of planting all of your gladiolus corms at once purchase enough so you can plant a handful every week from spring through early-summer. They need sunlight so remember this when you plant them.
A common practice when planting gladiolus is to stagger your plantings every 1-2 weeks. Tall flowering bulbs that flower in summer these are a long time favourite in Australian gardens. It is ideal to plant the Gladiolus bulbs in spring after the frost season has passed off.
Plant bulbs in autumn rather than spring.
Plant the corms in. Gladiolus colvillei The Bride a fantastic gladiolus bearing pretty delicate white blooms from late-spring to mid-summer. Since they bloom in 60-90 days if you stagger your plantings you will lengthen the bloom time and have fresh cut flowers for multiple weeks in summer. How to Propagate Gladiolus Plants.