These violas were grown from seed from Swallowtail Seeds I think, and I enjoyed the complementary flower colors of different plants. They self sow as does the more common Viola tricolor, a smaller flowered purple and yellow flowered one that I have a lot of here. Violas will take a lot of frost and still bloom, so they can be in bloom almost year round.
I have a number of Epimediums here and some have done well. They are a diverse group of plants mainly from China. They are self incompatible, meaning individual plants will refuse to set seed, so more than one seed grown plant of the same species must be present if they are to make seeds. However different species hybridize easily so an ever increasing number of hybrids are appearing since most gardeners grow a single clone of a given species. They are good plants for shade or partial sun, preferring well drained soil. With time they spread outwards, some faster than others. They appear to be critter proof and the flowers usually (but not always) hang downwards in shades of purple, yellow, orange, white, and pinks. I admit to giving up keeping track of their names as there are so many species and hybrids of them. Garden Vision nursery carries the most extensive selection of them that I know of and while they are not that cheap they are also a forever plant if they find your garden to their liking.
Anemone ranuculoides is a spring ephemeral from European woodands. Spring ephemeral plants grow during spring so that they can make food via photosynthesis, flower and make seeds and then go dormant by retreating underground when it is too shady and warm to for their liking. They are adapted to make the most of the spring sunshine before the tree leaf canopy above them blocks out the sunlight. I got these as dormant tubers at the fall Berkshire NARGS chapter sale. Often getting plants from such sales means they came from someone else's garden and were very successful so they have extras to share. That increases the chance that that particular plant will be a success since it is growable in the local area. Admittedly most of the members of the Berkshire chapter live in far colder regions than I do (USDA zone 5 and 6 mostly compared to my edge of zone6/7) but our summers are not vastly different, rather their winter lows are much lower than around my town and my growing season is longer with an earlier frost free date in spring and a later first frost date in fall.
More typical hybrid tulips of the Darwin sort most likely are in full bloom in early May. Some of these should be good perennials. With tulips it is best to try several kinds and see what persists in the garden as some tend to rot in summer when the bulbs prefer drier conditions. Over time the survivors that are adapted to our climate will multiply and eventually will need to be lifted and separated to give the bulbs space to grow to flowering size.
Here is the one that seeded into the patio below.
I decided to create a trough garden in the bird bath that came with the house. Our Jack of all trades friend Lin who can build anything drilled some holes for drainage and I planted some plants from S Africa (Delosperma congestum with the yellow flowers), Asia (the crassula like plant with rounded fleshy leaves), a sedum I collected from the Taroko Gorge area on the way to Hehuanshan in the middle, and some sempervivums (Hens and Chicks) that I took from my maternal grandmother's house after she passed. They looked pretty good when this was set up as can be seen and have done well. The sedum has suffered some frost damage so I dont know if it can survive our winters but I have backup in my cold frame and indoors just in case.
Spanish bluebells (Hyacintha hispanica) were here when we came and I brought a few form my old gardens as well. They are tough and multiply quickly into clumps, to the point of being a bit aggressive when they are in actual growth in spring. But being toxic they are impervious to pests and animals and guaranteed to give a nice floral display in early May.