Onions primarily have two types of roots: fibrous roots and contractile roots.
Fibrous Roots: These are the main type of roots that onions develop. A fibrous root system consists of numerous thin roots that spread out from the base of the onion bulb. This type of root system helps the onion absorb water and nutrients effectively from the soil.
Contractile Roots: In addition to fibrous roots, onions also produce contractile roots as they mature. These roots pull the onion bulb deeper into the soil over time. This is essential for protecting the bulb from temperature extremes and maintaining optimal growing conditions.
Understanding the root types of onions can help gardeners provide the best care for these plants, ensuring they receive the right amount of water and nutrients for healthy growth.