Transplanting Iris Under Oak Trees and Deterring Moles

Iris can thrive under oaks with noon sun if soil is amended. Identify your iris type first—likely bearded, Siberian, or crested iris. Search online for images to match.

For sandy soil, mix in compost or manure before planting. Top-dress annually (avoid covering bearded iris rhizomes). Divide Siberian iris every 3–4 years, bearded every 5–6.

Moles dislike castor oil: mix with water and drench the planting area to repel them. This also deters voles. Voles eat tulip bulbs; interplant daffodils (toxic to rodents) to protect them.