KINTO's graceful glass vases have a removable glass plate that's great for growing large seeds like avocados or even bulbs like hyacinths. The clean shapes don't look too obtrusive, but still make a statement on your windowsill. The design goal of 'Aqua Culture' was to celebrate the beauty of leaves and roots sprouting in water, which can be viewed through the clear glass.
KINTO is a Japanese design label that creates household and decorative objects with aesthetic balance. You can find more info about the brand here.