The greenest tulip I've found is deirdre a virdiflora, they have it at Bluestone Perennials, sorry I haven't come across your Evergreen tulip, I'm looking for green flowers too. MARY Here is a link that might be useful: deirdre

There are about 150 Tulipa species and a list of those is available at the Missouri Botanical Garden website/link below/ Enter Tulipa in search box and then click on species list. I purchase about 300-400 each year from vanengelen.com for fund raisers. They currently list 15 species and another 15 cvs. You will need to check any selection to determine if they are hardy in your zone. I like most of the species tulips, but I suppose one's preference will be based on flower color that will blend in with other nearby perennials. Rb Here is a link that might be useful: MBG: W3 Tropicos

The old fashioned red Darwins have come up in my yard for over thirty years. The newer varieties have returned for four years. You have two choices. You can dig them up each spring and store in the refrigerator and replant every fall or you can give them bone meal or bulb food each year in the garden. In warmer climates you must dig them up. In colder climates we leave them and dig them up to divide them. The fancy ones require good drainage and to to be watered even when they are hidden. They easily rot. Several years ago my daughter bought two large bags of fancy tulips and forgot to give them to me. She left them in the house and gave them to me in the spring. I planted them in the greenhouse. Let them come up and then die back (no bloms). Took up the bulbs and stored them in the refrigerator and planted them with bulb food in the fall. They came up and bloomed. I feed them and add compost as well as mulch and they are back every year along with many I rescued from my daughter's house (left by a previous owner) when she sold the house. They were small blooms but when I planted them with food in good soil they came up with huge blooms. All my tulips except the old reds are rescues and I have so many I gave them away this year. The small bulbs you remove can be replanted with food and in a few years you have more blooming tulips. They are not annuals they just need yearly care. Treat them like a prized possession and feed them. If you plant them amongst your roses they do well as they are fed well when you feed the roses. Also never never cut back the foliage. Another problem is moose and deer who eat the buds so if you have deer that may be where your blooms go. I cover mine with chicken wire until the blossoms open. Again if you live in a warm climate you must harvest them after the foliage dies or dig them up foliage and all like you would a glad and let them die back before storing in the refrigerator. FEED THEM AT PLANTING AND YEARLY EVEN IF LEFT IN THE GROUND.

Voles eat the tulips here even if they did come back. My experience with tulips is they don't last. I planted I think it is narcissus Salome when I moved here in 1978. They bloom every year. The biggest problem is to plant them where you won't mow them until after the foliage has died down. You see them in pastures where cattle mow the grass and weeds down and leave the daffodils alone. I really love the small narcissus like I think tete' a tete' and other short ones. They are among my flowers and shrubs. When it rains a lots I have a stream that runs through my yard. Some of those small narcissus where blooming nicely in the woods washed there in a flood. I just dug them up last week and planted them in the yard. Crocus are nice but so small they can get buried by mulch in a bed. Crocus work well around crepe myrtle which leaf out late and offer protection for gardeners forgetting there are bulbs underground. I have been caught stealing bulbs from old home sites. I don't do that anymore but to me nothing leaves behind a legacy garden wise like daffodils. The people who planted those years ago may be gone and the houses are gone, the yellow flowers bloom every spring. By the way I got permission when I could locate the owners and consider thinning them actually not that bad of a crime.