Phyl, I can't tell you where to get that, (I'd like to know too) but I can tell you that the same thing happened the first time I planted a few pips given to me by a friend. It's all in the location. They like moist soil in shaded areas. I do gardening for people as well as grow cut flowers, and I have seen lily of the valley spread and take over areas. I now have the pink one too, growing in a shaded area, and it does just fine. Cheryl

It's called a Tulipiere, and here is a similar one on eBay for $39.99. https://www.ebay.com/itm/VTG-ITALY-DERUTA-STYLE-TULIPIERE-13-TALL-LAMP-BASE-ITALIAN-POTTERY-HANDPAINTED/162935919427?hash=item25efbcd343:g:kS4AAOSw93ZaoWLz Link to all Deruta pottery on eBay - https://www.ebay.com/sch/i.html?_odkw=deruta+italy+pottery+vase&_osacat=0&_from=R40&_trksid=p2045573.m570.l1312.R2.TR0.TRC0.A0.H0.Xderuta+italy+pottery+.TRS2&_nkw=deruta+italy+pottery&_sacat=0

An epergne is a centerpiece that has candlesticks as well as containers to hold flowers. I think this might be what you are wanting. The bowl has a piece on the bottom that fits into the candleholder and allows flowers to be arrange. candlestick floral holder

Do you mean the actual storage boxes or the cubes? The boxes are available at places like the Container Store or Storables and often at office supply stores and places like Home Goods, but with less of a selection. Cube storage systems are available just about anywhere!!