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).
Gladioli are beautiful plants, grown from corms or bulbs, and a favorite of many gardeners. They are perennials with striking flowers and tall long stems that grow 2 to 6 feet in height.Due to their height, many people often wonder if itâs possible to have a gladiolus container garden.lant bulbs 3 to 6 inches deep and 2 to 3 inches apart with the flat side down. Many growers plant gladiolus at two-week intervals for continuous blooms. After youâve planted your bulbs, water them generously. Soak the soil so that it settles around the bulb.