Beaux Arbres’ wildflower seeds will be on sale at the $100 and Under Christmas Sale in Carp this weekend — a chance to pick up some little gifts for the gardeners on your list, and an advance look at some special species new for 2020.

For the first time we are have seeds of the lovely native vining Clematis called Purple Clematis (C. occidentalis). This pretty plant with relatively large nodding mauve flowers grows in woods in the Ottawa Valley but it much less well-known than the white-flowered Virgin’s Bower (C. virginiana). Purple Clematis is rather a wispy thing in the wild, and it is in bloom for only a short period in the spring. In your garden, give it a bit more sun, with much less competition than it struggles with in the woods, feature it on an attractive tuteur or trellis, and it wii reward you with an abundance of bloom. You cannot expect Purple Clematis, a wild species, to rebloom throughout the season, the way fancy modern hybrid clematis do, but lovely swirly seed heads will follow the spring blooms.

The seeds of Purple Clematis need a period of warm-moist stratification, to complete their ripening, before they get their cold-moist stratification. If you want grow this species from seed, get seeds now, before Christmas, to allow you the time to condition your seeds for germination next spring.

We are offering seeds of another very special species clematis: Sugar Bowls (Clematis hirsutissima var. scottii) (featured image). This little gem from the American Rocky Mountains, has no claim to be native to eastern Canada, it’s just super cute. Sugar Bowls is a small, non-vining herbaceous clematis with deep blue urn-shaped flowers, perfect for a sunny rock garden. It too needs a period of warm-moist prior to a period of cold-moist to germinate. Sugar Bowls is so slow to mature — mine took five years to get to blooming size — you won’t find it at the local garden centre.

Three very choice species for which we now offer seeds:

  • Canada Milk-vetch (Astragalus canadensis)
  • Clustered Poppy Mallow (Callirhoe triangulata)
  • Bowman’s Root (Gillenia trifoliata)

Clustered Poppy Mallow is another slow-to-mature species that you won’t find at the garden centre. It’s bright purple-pink flowers are a delight in the late summer garden but it you want it in your garden, patience is required. Like many of the choicest prairie flowers, it spends its energies in its early years making a deep, very drought-resistant root system. Once the plants are well-established, they bloom and bloom for weeks in mid- to late summer.

Clustered Poppy Mallow (Callirhoe triangulata)

Some new seeds I haven’t yet packaged will be available at Ottawa Seedy Saturday in March. Look out for:

  • White Camas (Anticlea elegans, formerly Zigadenus glauca)
  • Shooting Star (Dodecatheon meadia)
White Camas (Anticlea elegans) in front of Butterfly Milkweed.

West Carleton Arts Society’s 5th annual $100 and Under Show and Sale

St. Paul’s United Church, 3760 Carp Rd., Carp, Ontario

Friday December 6: 2:00-8:00 pm
Saturday December 7: 9:00 am – 4:00 pm
Sunday December 8: 11:00 am – 4:00 pm

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