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).
1 Dormant oil: Apply when trees are dormant, November through March, after all the leaves have fallen. 2  It is best applied just before bud break in the spring. 3  Mix with water as directed and spray to all surfaces of the trunk, branches and twigs.ORVALLIS-To avoid some of the pests and diseases that can harm your fruit trees before the next growing season, late fall is the best time clean up the area where your fruit trees grow.