Tonight: 7 p.m. Valley View Farms. Join dscape designer Lynn Poshepny to learn how to create an entrance garden for your home. Lynn will explain the basic elements of design and how to blend plants, hardscaping and color to welcome friends and family. Free.

Friday-April 12: 10 a.m.-4 p.m. U.S. National Arboretum, Northeast Washington, D.C. Washington Chapter of Ikebana International will exhibit flower arrangements representing a variety of ikebana schools and styles. Master teachers will give free demonsrations on Saturdays and Sundays, from 12 to 1 p.m. Free.

Saturday: The Howard Peters Rawlings Conservatory and Botanic Gardens of Baltimore will hold a spring flower show beginning Saturday through April 19, Tuesday through Sunday, from 10 a.m. to 4 p.m. There will be a special open house on Saturday from 1 to 4 p.m., with tours, children's crafts and more. The theme for the flower show is "No Rhyme or Reason," and there will be a special nursery rhyme garden, plus Easter lilies will be available for sale. The conservatory is located in Druid Hill Park at Gwynns Falls Parkway and McCulloh Street. For more information, call 410-396-0008.

Photo courtesy of Valley View Farms Garden Center and Nursery.

Saturday: 9 a.m. Valley View Farms. Create your own bonsai. Here is your chance to prune, wire and style a bonsai plant with Martha Meehan of Meehan's Miniatures. A Bonsai starter tree, soil, wire, pot and tools will be provided during the class. Fee: $35.

Saturday: 11 a.m. Valley View Farms. Herb gardening workshop. Valley View's "Herb Lady" Joann Weber will discuss planning and planting an herb garden. After the discussion, join Joann in a workshop to create your own window box herb garden with some of your favorite herbs. Fee: $35.

Saturday, 1-5 p.m. Sunday 12-4 p.m. Camellia blooms of all colors and types will be displayed by expert growers in this judged show sponsored by the Comellia Society of the Potomac Valley. Free.

Sunday: 2-4 p.m. Mt. Washington Arboretum. Come and learn the basics of successful vegetable gardening. Fee: $10. Call 410-484-6699 for reservations.

Sunday: 3-4:30 p.m. U.S. National Arboretum in Northeast Washington, D.C. Dr. Margaret Pooler, a National Arboretum research geneticist, shares a behind-the-scenes look at how arboretum scientists create new varieties of flowering cherries with improved qualities. A brief walking tour of some of the trees will follow the talk. Free. Registration required. Call 202-245-4521.