Has anyone tried foxgloves as part of a peach guild? A peach tree here that was dying back badly and had leaf curl (reddish blisters on leaves) has put on strong new growth and healthy new leaves since two foxglove plants self-seeded very close to the trunk and grew strongly this summer. (They looked very impressive, too!). I did sprinkle some dolomite around the base, and add some woodchips - not completely covering the root zone though, in case it stopped our mainly light rains entering the soil. Oh, and i watered the tree occasionally - not often - in very dry weather, as it is on sloping clay soil, exposed to strong drying westerly winds. No shortage of airflow there! I left white clover and other weeds growing but cut them back quite short.
Foxgloves were considered "plant doctors" in the past. This was confirmed by Louise Riotto in her book Roses Love Garlic, and by www.pfaf.org & www.tulipsinthewoods.com.
I wondered whether bees would visit the foxglove flowers and add its toxins to honey, but it doesn't seem to be a problem. The University of Sussex at www.sussex.ac.uk says the foxglove is loved by long-tongued bumblebees such as Bombus hortorum, but not honeybees. Come to think of it, I haven't seen honeybees in the foxgloves, but plenty of bumblebees.
My only other concern was whether toxins from the foxgloves could be transferred to the peaches through the soil (or by what lives in the soil). I couldn't find any evidence for that on the web. There are plenty of other flowers well-visited by honeybees here, such as fennel, dandelion, clover, various herbs, and koromiko, so they have a good selection of choices.
Off topic completely, am hoping to see the Supermoon and total lunar eclipse tonight!