Interior designers, artists and florists from Alexandria, Bethesda and Fairfax County will be among the those who will help light up the season for young patients at Children’s National Medical Center this Sunday. Holiday trees, wreaths and other festive designs will be unveiled at the second annual “Light Up the Season” event.

Local tastemakers spent weeks collaborating with Children’s National patients to create a holiday wonderland with festive displays that range from menorahs and trees to artwork and wreaths. Those designs will deck the halls and be available for purchase on Dec. 16, from 12 to 4 p.m. at Four Seasons Hotel Washington, D.C. Proceeds will benefit Children’s National.

The family-friendly event will offer activities for all ages include holiday cookie decorating, ornament making, musical performances and visits from Santa and Dr. Bear. For more information and to purchase tickets, visit childrensnational.org/lightuptheseason.

Designers from the region who created displays for Light Up the Season include:

• Wendy Danziger of Danziger Design in Bethesda, Md.

• Rachel and Charles Gang of Helen Olivia Flowers in Alexandria, Va.

• Ashley Greer of Atelier Ashley Flowers in Alexandria, Va.

• Jeff Akseizer and Jamie Brown of Akseizer Design Group in Alexandria, Va.

• Lauren and David Liess of Lauren Liess in Great Falls, Va.

• Rachelle Roth, Jillian Roth, Sascha Roth and Terri Johnson of Urban Country in Bethesda, Md.

• Marika Meyer of Marika Meyer Interiors and Marika Meyer Textiles in Bethesda, Md.