This section is from the book "Beautiful Gardens - How To Make Them And Maintain Them", by Walter P. Wright. Also available from Amazon: Beautiful Gardens: How To Make And Maintain Them.
The tree-shaded garden, so pleasant with its cool walks in summer, is apt to be somewhat trying to the flower-lover. There are not a great many flowering plants of the first rank which thrive quite under trees, but the following do not object to moderate shade: -
Aconite, Winter.
Aquilegias.
Asclepias.
Corydalis.
Cyclamens.

Fig. A Colony Of Daffodil Emperor At The Garden House, Saltwood, Hythe.
Dielytra.
Digitalis (Foxgloves).
Dodecatheons (American Cowslips).
Doronicums (Leopard's Banes).
Epilobiums (Willow Herbs).
Evening Primroses (Oenotheras).
Forget-me-nots.
Fritillarias (Snake's Head Lilies).
Funkias.
Geranium Pratense flore pleno.
Geums.
Heucheras.
Hypericums (St. John's Worts).
Lilies of the Valley.
Mimuluses.
Omphalodes verna.
Primroses and Polyanthuses.
Primulas Japonica and rosea.

Fig. A colony of Primula Japonica Pulverulenta.
Sanguinaria Canadensis.
Saxifragas.
Scillas.
Sedum spectabile.
Snowdrops.
Spiraeas.
Thalictrums.
Tiarella cordifolia.
Trillium grandiflorum.
Trolliuses.
Tulips.
Veronicas.
Vincas (Periwinkles).
Violas and Violets.
 
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