What are alternatives to floral foam?

Agra Wool - An Alternative To Floral Foam 100% Natural And Biodegradable!

Floral gift alternatives to roses for Valentine's Day - Los Angeles Times

SLOW FLOWERS Podcast: Meet Mickey Blake, inventor of Floral Soil (TM), the new alternative to floral foam (Episode 160) - Slow Flowers Podcast with Debra Prinzing

Floral foam – the facts Sustainable Floristry Network

A Guide to Floral Foam Alternatives - Flower Magazine

Eco-Friendly Floral Foam Alternatives for Arrangements

Eco-Friendly Floral Foam Alternatives for Arrangements

Floral foam is everywhere: what are the alternatives?

Green alternatives to floral foam

John Emmanuel Interview By Koch & Co