A few summer-blooming bulbs, such as lilies and crocosmia, are winter-hardy and can be left in the ground to come back year after year. Most, though, are tender ones that you have to dig and store ...
Bearded irises bloom from early spring to mid-summer ... July: Dahlias are the glory of the summer bulb garden. Their tuberous roots do not require chilling but they should be soaked for one ...