Non stop begonias

I grow begonias and although it's not too late to start off a tuber, you may not get flowers until August. I usually start mine off when the clocks change and some of them are already in flower now, most have buds.

I'd suggest buying them as plants at this time of year, they're often in supermarkets in six packs and usually not expensive.

As for whether they form tubers, most will, however some modern hybrid begonias are seed raised and don't form tubers. You'd have to research the particular variety.

I highly recommend trying them. They don't require a lot of upkeep and they're useful to have in shadier areas as they're so bright and colourful.