Late winter or early spring is a great time to start sprouting kūmara and potatoes. Recipe and photo: Extract from Homegrown Happiness by Elien Lewis 1. Kūmara Late winter or early spring is the perfect time to start off your kūmara tipu (also known as tupu, slips or shoots) as kūmara need a long, warm growing season. Starting them off indoors nice and early means they get the head start they need. This is pretty important if you live in an area with shorter summers. One kūmara tuber can…