This bulb should be planted in the Spring. Due to the seasonality of bulbs, items are not always in stock. Call for availability.Agapanthus flowers bloom in large, round clusters or umbels of blue, white or violet-blue. The funnel shaped Agapanthus flowers grow at the end of a thick 2 to 4 foot tall stem. The Agapanthus clusters measure about 6 to 8 inches across.