And of primary importance, they are not likely to produce flower spikes.

The male flower spikes are up to 17 cm long.

It is well known for its extremely large flower spikes, which easily can become 40 cm long.

Each flower spike is composed of around 400 individual flowers.

The flower spike is up to 34 centimeters long by 2 wide.

If that is impossible, try to remember what the flower spikes looked like last summer.

Some of its flower spikes are the expected white.

Old flower spikes fade to brown, then grey with age.

Long flower spikes are produced at the top of the stems in summer.

The flower spikes are about two feet tall, usually blue but sometimes pink or white.