The results are interesting and you don't need to use liquid nitrogen to check what happens. You can just put a banana in a home freezer and leave it there for at least 24 hours to be sure that it is completely frozen. Take it out and check what happens as it warms up.
In some parts of the country, spring is the best time to plant alfalfa. In others, it can be done successfully in late summer and early fall. It needs six to eight weeks of growing time before the first frost so it comes back with gusto in the spring. {C}.
1 Broccoli can germinate in soil with temperatures as low as 40ÂºF. 2  Broccoli requires full sun and moist, fertile soil that's slightly acidic. 3  Work in 2 to 4 inches of rich compost or a thin layer of manure before planting. 4  For spring plantings, seed or set transplants 2 to 3 weeks before last spring frost date.ost varieties take 60 to 70 days to grow a head and the plants may be as tall as 3 feet. It's better to leave the leaves on the plant and not cut them off. If by a chance you don't get florets on your plant you can eat the broccoli leaves.