That is the growth habit of this bulb. BTW, they will spread easily and seed around, so if you don't like them, you may want to dig them and move them or give them away before they get a foothold. Personally, I think they are lovely plants for a shady woodsy garden....always one of the first to bloom in the Spring. They look particularly lovely with early Daffodils.

If you want a more upright plant, you may want to check into Scilla campanulata, although the blue is not as intense as Scilla siberica.

Scilla Siberica should eventually bloom on somewhat taller stalks for you - my ancient drifts of them seem to reach bloom stalks maybe 3-4 inches high and the leaves splay somewhat.

I'm in the camp of loving them since parts of the yard turn blue when the last of the snow goes. Drifts in the lawn just get mowed down with the first grass cutting of the season so I never think of them as an invasive little thug.

They reproduce pretty readily here in cold climates - and I think they might do a bit better in the cooler zones - each flower bell produces a green pod which contains many seeds. They fall and each turns into a little bulb which turns into a full fledged plant the next season. And being so small and so numerous, in shadier beds I simply plant right over them, etc.

Hmmm. I do love the color. I've never seen any flower such an intense blue. Spreading is ok - I will just plant annual seeds on top of them in summer, probably. Perhaps I'll wait a few years and see if they get any taller.... then I'll make a decision. They don't seem to have multiplied much or at all from last year, so maybe I have a couple years before that starts in! Thanks!