Kombi Raised Bed & Cold Frame CombinationDESCRIPTION The Juwel "Timber" Raised Bed Coldframe combination is a perfect solution for tending a small garden while maintaining a raised position. Whether staying upright is a matter of need or preference for you, the 24" tall soil height will allow nurturing your plants while in a more comfortable position than with lower raised beds. You'll enjoy an extended growing season by being able to begin growing in late winter and harvest in late fall.