There were some bugs which allowed items in game to fall below normal walking platforms. We think most of those have been solved, but we are watching for more instances.
In most cases, like in Meadow gardens, you could simply pull them up from under the ground and into your pack. Your home's garden ground is a little bit harder for a non dev to get at- they may have been out of grabbing reach, so I just jumped down under the platform in order to reach them all.
Thank you again :) I did notice that you damaged some of the plants .. there's some bare branches and leaves all around. hmm.. I don't remember seeing a rake at the vendors. btw.. will we be able to plant flowers at any time in the future. Not in a garden patch but maybe in window boxes or pots to brighten up our homes ? :)