James; I have a question and then a suggestion. But first this: "It has been suspected, for hundreds of years, that the black walnut can be detrimental to other plants growing around it. Juglone is the principal allelopathic chemical that is responsible for the inhibition of growth and the death of some species that grow within close proximity to the black walnut. Not all plants are affected by juglone. Juglone is released by the roots of the plant, but it is not very soluble in water and doesn't travel far in the soil. Some examples of plants that may be affected are tomatoes, black alders, alfalfa, apple trees, corns, beans, potatoes and many others. Juglone is also released from decaying roots and may remain active in the soil for several years after walnut trees have been removed. The physiological action of juglone and its allelopathic effects are not well understood. Research has shown that juglone may alter the normal oxygen uptake of mitochondria and may also impair photosynthesis which would lead to decreased growth rates of the effected plants." So once you get past the juglone, I planted 2500 daffodils under european beech trees. The bulbs have flourished and multiplied. they flower ( planted three varieties) for about six weeks and the foliage gets a chance to ripen prior to the beeches leafing out. The shade under the beeches is very heavy. It was quite a task planting the bulbs with digging through the tree roots and the ivy that covers the area under the trees. A very non bulb person suggested I plant three varieties that flower early mid and late season. I have February Gold, Pueblo and Thalia nd the show is great. Arnold New Jersey