Kana spelling is common in everyday writing, especially in recipes or when the kanji is not needed.
アサツキUsage45%
kana-only spelling
Katakana spelling is often used in botanical or culinary contexts.
Etymology
The kanji 浅 (shallow) and 葱 (onion) literally mean 'shallow onion', possibly referring to the plant's mild flavor or appearance. The reading あさつき is a native Japanese word.