We can be reached at 1-800-888-1447 or email us by submitting a ticket.

Our updates hours are:

1/3/23 to 6/9/23

    Mon-Thur: 8:30 am to 8:30 pm EST

    Friday: 8:30 am to 7:30 pm EST

    Sat: 9 am to 5 pm EST 

Go to Burpee Submit a ticket My Tickets Log in
Open navigation

Why won’t my iceberg lettuce form a head?

Iceberg lettuce requires an unusually long cool season (for a lettuce) to form a tight head. Any warm weather or moisture stress during development will cause a misshapen head, incomplete head or no head. Another possibility is that the plants are growing too closely to one another. Crowding causes plant stress.

Did you find it helpful? Yes No

Send feedback
Sorry we couldn't be helpful. Help us improve this article with your feedback.