Mystery growth

Mystery growth

What is this? http://www.fotolog.net/mscarolyn/ It appeared the day after I fed my lilly fish emulsion and it's grown this large, creating two other shoots in the process, over one week. Is it suffocating my lilly? It looks huge.
Lavender info.

Lavender info.

Broadbean

Broadbean

Moy Grande Hibiscus

Moy Grande Hibiscus

Black Krim Tomato

Black Krim Tomato

Making Progress

Making Progress

tulips

tulips