I don't have any experience with growing begonias. I ordered from Tulip World and another online tuber vendor. The bulbs from Tulip World are massive... easily double... compared to what I got from the other vendor. In addition to the size, the ones from Tulip World already had significant sprouts. So if you can find what you want here, I think the value is worth it. Shipping to California was quick. I planted each tuber in a 4" pot with a 1:1:1:1 mix of coco coir, pearlite, acidic azalea mix from EB Stone and small orchid bark.

Already sprouting leaves. Can't wait to see vibrant colors!

These bulbs were HUGE, very healthy and are growing well. Thank you, Tulip World!

Nice large tubers, bigger than expected, and all are growing well.