A native of marine habitat, asparagus can adapt in saline soil conditions where other common vegetables rarely grow. They are flowering perennials, so you do not have to replant them every year. Once planted, the same plants will grow for several years. At maturity they grow to a height of about 39-60 inches and bear yellowish-green, tubular flowers.
Select a plantation site where your plants can grow undisturbed for 8-10 years. You can always uproot and replant them in the future, if required. Preferably, the selected site should receive full sunlight for healthy growth. Otherwise, you can also plant them in partially-shaded areas.
In spring, a few weeks before plantation, prepare the soil by mixing organic compost to garden soil. Supplementation of compost is beneficial for providing nitrogen, potassium, and phosphorus to newly planted asparagus.
A thumb rule to maintain healthy asparagus is to provide growth conditions that are nearly similar to that of their natural habitat. It will take around 2 years for harvesting edible asparagus spears from the time of planting crowns. If you are using seeds, you can start harvesting from the third year of planting.