Here is a video of the engine. There are marks on the ball to make it's rotation easier to see. You will notice that at the start I hold the ping-pong ball in my hand very briefly so the liquid nitrogen will boil and start the rotation quickly.
They can be planted in the spring around your last frost date. Gladioli bloom about 90 days (three months) after they sprout in spring, so the bloom time really depends on when you plant them. In warm climates, where they stay in the ground year-round, gladioli bloom anytime from late spring (deep South) to midsummer (middle South).
Please try again later. Gladiolus are tough bulbs, in addition to being one of the easiest bulbs to plant and enjoy throughout the summer. Plant gladiolus, whose bulbs need to be brought up in winter months, with tips from an experienced gardener in this free video on flower bulb gardening.Expert: Jessica Smith.Bio: Jessica Smith has worked in the gardening business for more than 22 years.lant gladiolus, whose bulbs need to be brought up in winter months, with tips from an experienced gardener in this free video on flower bulb gardening.