Walking Onions 🧅Looking for a perennial crop? The Egyptian Walking onion is hardy to zones 3-10. Other names include: tree onion, topsetting, and walking onion, (Allium × proliferum). It is a cross between the common bulb onion and Welsh onion, (bunching onion/scallion).🧅Walking onion is very prolific and self-propagating. Over time, the bulbs multiply. The flower stalks get weighed down by clusters of bulbils on top eventually toppling over. The bulblets/bulbils that root will develop into ne