Hale's Best Jumbo Cantaloupe Seeds

Cant seem to get these to start.

I attempted two time to get these to grown in a raised bed inside a green house with no results. I have tomatoes from this same order that are doing fine and melons seeds from another supplier are working as well. Not sure what's wrong.

Hales Cantaloupe

Have not planted these seeds yet but it came quickly in the mail and prices are reasonable. I have transplanted this variety and one plant produced about 13 melons of great quality. Very juicy and sweet.