OR
Welcome to blue mountain!
Your free account
Thank you for creating your free account.
With this account, you have access to a limited amount of digital greetings for top occassions.If you would like to access premium offerings like SmashUps™ and Creatacard™, become a member today.
Become a Member
Unlimited Access
New Content
SmashUps™
Schedule Ecards
Celebrate a dear sister who’s a great mom! Remind her how special she is to you and the entire family with an animated greeting filled with warm wishes, high praise and a special "Happy Mother's Day, Sis!" message from you to her. Blue Mountain members can personalize and send free Mother’s Day ecards for a sister. Join today and browse sweet, sentimental and funny Mother’s Day ecards for sisters.
As your sister, receiving praise and admiration from you on Mother’s Day will be extra meaningful — especially if you’re a mom, too. Not sure what to write in your Mother’s Day ecard? Here are some suggestions to help you craft a heartfelt "Happy Mother's Day!" message to your sister:
Your sister may already have plans to celebrate her special day with her kids, but you can still send her happy Mother’s Day wishes from the comfort of home or on the go with the Blue Mountain ecards app. With a Blue Mountain subscription, have fun sending Mother’s Day for Sister ecards for FREE… in a few simple steps! Simply choose the perfect Mother’s Day card above, personalize with your sister’s name and a quick note written by her favorite sibling, and be ready to send in minutes via email, text, or social media. You can even schedule the delivery of your Mother’s Day card “For Sister” ahead of time or add a digital gift card to really make her day!
Join today to wish all your sisters a happy Mother's Day!